At This Spot, North America Almost Split in Two | The Midcontinent Rift

Поделиться
HTML-код
  • Опубликовано: 4 июн 2024
  • Lake Superior exists because, ~1.1 billion years ago, North America failed to rip in half. This summer, I traveled to the lake to see what kind of stories that failure left behind, and I ended up learning a whole lot about the Midcontinent Rift, basalt, copper mining, and geology.
    This is one of the biggest projects I've done in a while, and I had a really good time with it. If you enjoyed this travel + science story, stop by the comments and let me know!
    ✨ Want to support my work? Well, hey, thank you so much. You can learn more about how to keep this thing going at www.patreon.com/alexisdahl.
    ☕ Find this series valuable, but Patreon isn't for you? You can also help keep this thing going at www.buymeacoffee.com/alexisdahl.
    Find Me Elsewhere:
    • On Instagram, I upload a lot of nature photos, plus science and adventure stories: alexis.writes
    • Want to work together or learn more about my work? Contact me at AlexisDahl.com.
    • On Etsy, I sell original artwork and stickers: etsy.com/shop/AlexisJDahl
    • On Twitter, I occasionally share science news and the occasional thought: alexiswrites
    Music:
    "Too Many Valleys" by Josh Woodward. Free download: www.joshwoodward.com/
    Main Sources:
    Rift:
    www.researchgate.net/publicat...
    geo.msu.edu/extra/geogmich/rif...
    sites.northwestern.edu/sethst...
    www.nps.gov/articles/parkscie...
    phys.org/news/2017-12-geologi...
    www.geo.mtu.edu/great_lakes/MCRS/
    Copper:
    2017: www.mdpi.com/2075-163X/7/10/1...
    Lovely Plain-Text Overview: www.michigan.gov/documents/de...
    www.minsocam.org/msa/collector...
    www.mindat.org/article.php/25...
    www.geo.mtu.edu/KeweenawGeoher...
    riogrande.ees.nmt.edu/outside/...

Комментарии • 718

  • @gregwarner3753
    @gregwarner3753 Год назад +137

    I just found your videos. I am enthralled by your presentations.
    My wife, now passed away, and I drove several hundred thousand miles in North America in the fifty+ years we were together. Observing the geology was a major part of there travels'
    Congratulations on your marriage. May it last for many decades. Stay curious and stay well.

    • @darrellmortensen9805
      @darrellmortensen9805 Год назад +2

      I'm so sorry your wife has passed. My condolences

    • @AhJodie
      @AhJodie 3 месяца назад +1

      @gregwarner3753 I am sorry about you losing your wife, it sounds like you both had a great time together! I also wanted to say that was a very cool blessing you gave to the creator of this channel, Alexis, it was so sweet and made me feel happy! Love to you! I hope you are well and enjoying life still!

    • @gregwarner3753
      @gregwarner3753 3 месяца назад +2

      I am as well as can be expected of a 77 year old man. I have some weird auto-immune problem the doctors are working on. @@AhJodie I plan on driving to Virginia and points west this spring to see relatives and friends. I may go as far West as the Big River. In the Fall I plan on driving, with a bit of a boat ride, to Newfoundland, Canada. The Rock has some fascinating geology, good music and great people. Thanks for your post.

  • @MalissinA
    @MalissinA 3 года назад +207

    Your excitement is genuinely infectious.

    • @AlexisDahl
      @AlexisDahl  3 года назад +17

      Aw, thank you! That's genuinely really kind.

    • @harrietharlow9929
      @harrietharlow9929 3 года назад +11

      I hope she never loses her thirst for knowledge.

    • @bonniearmstrong6564
      @bonniearmstrong6564 Год назад +1

      This was not a big under taking or a failure. It was a plan of God. Thanks you for the information about rifles, would like to know more. I’m from Michigan and never heard about the rift in school or family members. I do know a little about the quake that took place near Union City in the 1940’s. I think I may have been about six. It was scary.

    • @christinearmington
      @christinearmington Год назад +1

      I’m glad you found your rock. I tried and failed to find Yooperlites when I was there. 🤦‍♀️🤷‍♀️

    • @Smarty1171
      @Smarty1171 Год назад +2

      Call it what you want. I was interested in the topic but had to bail half way through. I think it’s irritating.

  • @toryjames5084
    @toryjames5084 Год назад +69

    Thank you for this. Old Canadian Indigenous guy here. Our elders told us about the copper mining we did pre- contact. Apparently the copper mined in what is now Ontario and Michigan was traded south as far as Brazil to the south and the Yukon in the north.
    What is now Windsor / Detroit was as important to north /south trade a melanin ago as it is now.

    • @TRAMP-oline
      @TRAMP-oline Год назад +9

      "a melanin ago"
      sometimes autocorrect is hilarious
      💀

    • @tuhmater2985
      @tuhmater2985 Год назад +1

      That’s really cool! Do you know if this region was like the biggest copper source in the continent? The conditions seem a bit rare and something traded that far would have to be a pretty valuable resource so I was just wondering.

    • @Mockingbird_Taloa
      @Mockingbird_Taloa Год назад +9

      @@tuhmater2985 Biggest and one of the easiest to mine, but not the only location with native copper on Turtle Island. There are some ancient mines throughout the southern Appalachians (I think most are in what is now the Carolinas). The other major thing besides the stunning amount of practically pure copper that would be literally sitting on the ground is the way trade routs went made distribution easy. Proximity to the Mississippi valley from the Great Lakes region meant copper from Michigan was a fairly easily accessed trade commodity from the Rockies to the Atlantic and south into modern Mexico.
      It should be pointed out that copper tools are only found in great number around the Great Lakes in areas with a dearth of flint/chert to make stone tools. While they never disappear from the archeological record, copper was largely replaced with imported stone for making tools. Copper has retained a lot of ceremonial importance and has been used for making decorative items for millennia, but was mostly rejected as a tool-making material in favor of stone! I have seen it sugguested that communities around the Great Lakes were beginning to experiment with iron ore right before the onset of colonization. If that is true (and I think it possible), it would be the first and probably only time humans rejected copper, skipped bronze, and began serious attempts at developing metallurgy by extracting iron before anything else.

    • @alvincook8888
      @alvincook8888 Месяц назад

      👍👍

  • @AlexisDahl
    @AlexisDahl  3 года назад +164

    UPDATE: Hey, there! Since uploading this video, I've had a few people point out that my "basalt" slab... may not actually be basalt. So, this is me stopping by to correct myself! While the northwest Upper Peninsula DOES contain all kinds of basalt, I likely misidentified my particular rock sample. Thanks so much to everyone who left me notes, especially Jim, who pointed out it looks more like shale!

    • @lynettewebber9280
      @lynettewebber9280 3 года назад +13

      I would suspect Nonesuch Shale given where it appears you stayed! Really enjoyed this enthusiastic look at my hometown geoheritage ❤️

    • @AlexisDahl
      @AlexisDahl  3 года назад +8

      Thanks, Lynette! I'm glad you enjoyed it - and I appreciate your insight on the stone, too! 🙂

    • @browngreen933
      @browngreen933 Год назад +5

      The dark colored Nonesuch Shale is a story in itself -- beginning with its unusual name.

    • @supremepizza3710
      @supremepizza3710 Год назад +14

      Yep, what I thought but then I am a Michigander... I correct no one.

    • @Grumpyoldman037
      @Grumpyoldman037 Год назад +12

      OK, so now is time to do a video on the difference between basalt and shale! Looking forward to it. And a story about Nonsuch Shale. It sounds fun!

  • @Drewteam88
    @Drewteam88 Год назад +6

    It's about perspective, it's not failure to break apart.. It's success of staying together

  • @robertarnold3358
    @robertarnold3358 Год назад +6

    I enjoyed your video. I was born and live in MIchigan. When I was 8, mom was told that I was going to be blind Dad owned a truck and bought a camper for it. I’ve been to these mines and all over MIchigan. I didn’t loose all of my sight. I am legally blind still living near Flint. My parents wanted me to have a visual memory of MIchigan before I lost my sight. They taught me how to and not to be afraid of traveling.

  • @rodnattrass7021
    @rodnattrass7021 Год назад +19

    You're enthusiasm is infectious. You are obviously born to be a presenter. Keep up the good work!

  • @Brunoinski
    @Brunoinski Год назад +13

    My grandfather was a miner up in that area. Was in 2 cave ins and survived them both. He had enough of that and moved to Hamtramck Mi.

  • @cub1009
    @cub1009 Год назад +29

    Great video! It's always interesting to hear about local history. My family owns a farm in the UP of Michigan. For almost 150 years my family has found float copper in the flieds after plowing. You can litterally walk the field and pick up pieces of copper. My family has a wood barrel in the barn which has been slowly filling with copper that has been found. I remember as a kid pulling rocks out of the discs for the tractor and occasionally finding a piece of copper wedge in there.

    • @thomasfoss9963
      @thomasfoss9963 Год назад +8

      My Grandfather grew up in the U.P, eventually making assorted car parts for Ford near Detroit, and he had some copper chunks he had found over the years-----

    • @stevegarcia3731
      @stevegarcia3731 2 месяца назад

      Thanks! You know two things intrigue me. First, if the copper came from the Sudbury impact in Ontario east of Lake Huron at 1.8 billion years ago, how is it that the copper is so close to and on the surface? And second, how could very reactive copper be in topsoil after 1.8 billion years without having oxidized away to powder? Copper will oxidize within a handful of years exposed to weather, much less being in wet soil. I don't expect you to know the answer, but I needed to put it out there.

  • @richardbast7243
    @richardbast7243 Год назад +5

    Try looking at the Niagara Escarpment if you hadn't already. Starts around Lake Winnebago in Wisconsin through Lake Michigan, through Michigan, Canada and into New York state.

  • @sicknsaneofficial8646
    @sicknsaneofficial8646 2 года назад +16

    Oh. Duuuuuude. I will say. If you happen to be within an hour from the coast of Lake Superior and hear about a thunderstorm rolling through I HIGHLY recommend finding a nice place to park on the coast and watching it!! Not while it's above your head or throwing huge waves at the coast or anything but while it's way out in the distance storming over the lake. I've never seen so many lighting strikes so fast in my life. Watching our videos of it was like watching a time-lapse!! I couldn't believe my eyes! Such an amazing yet terrifying thing to witness!

    • @michiganengineer8621
      @michiganengineer8621 Год назад +1

      I grew up in Muskegon (still remember how bad the paper mill stunk) and to this day I LOVE watching a thunderstorm roll in across the water.

  • @grizbear9519
    @grizbear9519 2 года назад +13

    I live on the southern shore near Marquette. Lake Superior is literally our identity around here. Thanks for the info

    • @AlexisDahl
      @AlexisDahl  2 года назад +2

      What a great place to live! And my pleasure. Thanks for stopping by!

    • @timothyhoffman3470
      @timothyhoffman3470 Год назад

      @@AlexisDahl I believe you can walk the shore like in a few spots that got your Lava Rock shore line spots! One is golden brown, go on a none windy day or it might be covered in waves~ The rest, Higher ground I also walked on was pure black...
      It was a cool freaky surface to walk on!! Great traction when walking on it You got to go to the park in Marquette. To see it! Feel it! You would need too get a little brave to follow the shore line it is a bit hilly & drop offish____ You can fall through into a hole or off a cliff in some spots along the shoreline!! So watch out for that!~
      So you do have to go BillyGoat it a little~
      I was thinking of going back there, to video & fish some more in some of them spots!
      With~> The Golden Brown Basalt Shoreline~ Light Colored, it looks.. To be really deep looking water right at the drop-off shorelines edge~ It is a funky place to be~
      Like another world view/feeling~ Just keep track of the wind if it starts to hit you in the face out there!~?
      You may want to look to move up on higher ground~ It looks like a big ~Wash Zone~! Cool place to be!
      I have to do a bit of a drive but that is the way it is to go anywhere~

    • @entangledmindcells9359
      @entangledmindcells9359 Год назад +1

      One of my better driving stories was along there.. It was winter, at night with a bad snow storm going on. As I was driving I glanced off to look at the harbor as I was driving..
      I commented about how huge the ice mounds were in the harbor.
      My passenger responded that those ice mounds were moving.

  • @JohnJohnson-es2eu
    @JohnJohnson-es2eu 2 года назад +37

    You should check out the "Driftless Area" if you really like the geological stuff. It's an area that was never covered by glaciers. Very beautiful region.

    • @AlexisDahl
      @AlexisDahl  2 года назад +10

      Oh, fascinating! Thanks for the recommendation, John. I hadn't heard of that area, but it sounds like it's worth a trip!

    • @allibani
      @allibani Год назад +1

      This is not in the upper peninsula or anything to do with lake Superior

    • @jennamiller3114
      @jennamiller3114 Год назад +1

      @@AlexisDahl It is on the south western part of Wisconsin, it is pretty cool, and also has been known for it's copper deposits. its about a 4 hour drive from the UP.

    • @valeriepark9444
      @valeriepark9444 Год назад +1

      @@jennamiller3114 Not to mention it has the best cheese and dairy farms in a state known for cheese 😋

    • @LetsTalkAboutPrepping
      @LetsTalkAboutPrepping Год назад

      @@allibani oh nooooooo

  • @stevenburkhardt1963
    @stevenburkhardt1963 Год назад +50

    My grandfather was born in the Keweenaw to a miner. Not only cooper was mined in this area for thousands of years by Native Americans (there is a mine site on Isle Royale, I was a park ranger there) but iron ore

    • @rridderbusch518
      @rridderbusch518 Год назад +6

      Both of our great-grandfathers may have worked along side each other. Iron ore for mine. Then he bought rough farmland in northern WI. The farm literally killed him.

    • @jimvandemoter6961
      @jimvandemoter6961 Год назад +3

      My Dad was born in Laurium. My Grandfather was a barber who took care of the miners. My dad was born in 1912 and the family moved to Detroit when he was about 4-5 years old.

    • @wolveryne42
      @wolveryne42 Год назад +2

      Copper, iron, silver, gold, uranium. We have all da ores. lol
      😂

    • @guccilibrarian4728
      @guccilibrarian4728 Год назад +2

      @@wolveryne42 Don't forget nickel and platinum

    • @wolveryne42
      @wolveryne42 Год назад +1

      @@guccilibrarian4728 I didn't that was da ores part of all da ores 😋

  • @figalmighty1
    @figalmighty1 3 года назад +50

    Infectious excitement, smile, hopefulness. Your videos are like a calm eye in the storm that is 2020. Please keep on doing what your doing, the world can use more of this.

    • @SunofYork
      @SunofYork Год назад +1

      Overly girly is distracting

    • @Onlyhiphopbrendan
      @Onlyhiphopbrendan Год назад +3

      @@SunofYork What? You're getting too old for this, grandpa. What did we say about talking to random people on the internet? We, as a family, asked you to cut it out. Now cut it out!

    • @SunofYork
      @SunofYork Год назад

      @@Onlyhiphopbrendan So you are into elder abuse with a threating overtone... Your attempt at silencing people who disagree with you is a failure

  • @misterwirez7731
    @misterwirez7731 Год назад +2

    I'm 56 and still love learning history, whether it be rocks, the earth, pyramids or space. Nice work. Merry Christmas.

  • @jasonbouvette1077
    @jasonbouvette1077 Год назад +10

    Da UP is great for geology, but if you want to see some interesting formations from the mid continent rift explore the North Shore of Lake Superior in Minnesota. Just beautiful and incredible formations. Basalt for days lol, and crystals and agate like crazy. Entire beaches of nothing but rounded pinkish basalt (I think, maybe something else lmfao). Plus, easier access to Michigan's Isle Royale, where there are many ancient Indigenous native copper mines.

  • @GoddessofAnubis
    @GoddessofAnubis Год назад +5

    Being a native Michigander, Grand Rapids born, I loved this so much. I knew all about the copper stuff, I went to several mine tours when I was a kid with my parents to see how big the mines were, how they picked, and getting to do so ourselves and if we found any copper, the place would turn them into jewelry for us. They were owned by an indigenous family that showed off the jewelry they'd made and artifacts from the area that had been found. I still have my copper earrings in my wood box...it and visiting Sleeping Bear Dunes is one of my favorite memories from being here

  • @nancyspates6146
    @nancyspates6146 Год назад +1

    I was born and raised in Ontonagan County. Still have my family home at Topaz Meadows, which is 25 miles from Ontonagan. It’s an Airbnb now. My father worked in the copper mines for 33 years! Love my homeland. Hearing your excitement gave me goosebumps! I explore as much as possible every time I go back home! Thank you for sharing. There’s so much history in the UP! It’s endless. Yooper Pride!

  • @MrSimone420
    @MrSimone420 Год назад +4

    Very interesting video. I live in thunder bay ontario and am a geotechical/environmental driller. We were drilling near the base of the norwester mountains in thunder bay and the geologist was explaining how they were formed by volcanic eruptions. you could see clear as day the change in rock in the cores from jet black bassalt to a beautiful slate. Glad I came across your video and learned more about the scale of what was happening around that time

  • @harrietharlow9929
    @harrietharlow9929 3 года назад +15

    I love your enthusiasm. I am extremely interested in the geology of the Lake Superior area and the Midcontinent Rift so I was glad to find this video

    • @AlexisDahl
      @AlexisDahl  3 года назад +1

      Thanks, Harriet! I'm so glad you enjoyed this! I had a great time learning about all of this.

    • @harrietharlow9929
      @harrietharlow9929 3 года назад +1

      @@AlexisDahl I love learning new things, especially geological thing.

  • @Omnifarious0
    @Omnifarious0 3 года назад +6

    I used to live on the north shore of Lake Superior. I spent my childhood running along the rocks on the shore near Grand Marais. :-)

    • @AlexisDahl
      @AlexisDahl  3 года назад +1

      Whoa, amazing! Knowing nothing about Grand Marais except what you just said, that sounds like a lovely way to spend a childhood.

    • @Omnifarious0
      @Omnifarious0 3 года назад +1

      @@AlexisDahl - Frankly, that was one of the few good parts of it. That and wandering around the forests on or near our property. It was otherwise a pretty miserable place. Small town. A lot of unhappy memories.
      But the shore, the woods, the creeks and rivers. That was all pretty nice. Those and books were my escape. That part of Lake Superior (back then, and possibly even still) was completely drinkable without boiling the water. My grandmother lived in a small cabin on the shore and got all her drinking water right out of the lake. The lake never really gets above 15-20C anywhere, even in the middle of summer. It's a cold lake.
      The shoreline is pretty unique geology in general. As a kid, I didn't know enough to know how it came to be. And I'm not a geologist now, and so know little more. But I do know I haven't ever really seen anyplace like it.
      Your video was really interesting to me because it told me things I never knew about the area I grew up in. Thank you.

    • @AlexisDahl
      @AlexisDahl  3 года назад +1

      @@Omnifarious0 Oh, man, I'm sorry to hear that. I'm glad you at least had a few ways to escape, though. In the grand scheme of things, that seems like it was so important.
      And what you said about not seeing any place like it - just from the little time I spent in the UP, I got that feeling, too. It's a beautiful, fascinating place.
      Either way... Thanks so much! I'm really glad you enjoyed it. I learned so much while making it.

  • @choedzin
    @choedzin 3 года назад +8

    When I was a kid (we're talking 60 yrs. ago now) my family used to go camping in Porcupine Mts SP near Ontonagon, so thanks loads for helping me recall some very fond memories. I remember long discussions about how to pronounce the name of that town (because we so often had to drive over there to pick up things we forgot the last time we went shopping, we sometimes referred to it as "O not again") And I also immensely enjoy your videos, they're both informative and entertaining, thanks to your sprightly nature, which not even hiccups can dim.

    • @AlexisDahl
      @AlexisDahl  3 года назад +2

      Thanks for sharing! Those sound like such great memories; I'm glad you got a chance to think about them again. (Ha, I had the same trouble with the pronunciation as we were planning our trip - Pete had to keep correcting me.)
      And thank you very much! That's really kind of you, and I'm excited to hear it.

    • @harrietharlow9929
      @harrietharlow9929 3 года назад +2

      When she was talking abou lava flows, it took me back to when I was young, like, about 60 years ago. My dad knew I loved geological stuff, so when we were on a trip and were crossing the Mojave Desert. He pulled over to side of the road, and let me collect sone rocks from a lava flow.

  • @rowdysgirlalways
    @rowdysgirlalways 2 года назад +18

    I shared one of your videos with a dear friend and lifelong Michigander, I've lived here only 52 years, and she got so excited! So you have 2 new subscribers now.
    I grew up in the PNW, Eugene, Or, and my Dad was a metallurgical engineer and had worked in the Butte, MT, mines when they were underground. He had a good grounding in both geology and mineralogy, which he happily shared with us during our travels thru the PNW and the west.
    When we moved to the Midwest, we were amazed at this whole new geology that surrounded us. Mountains so ancient that they were now hills, or had eroded away completely, huge lakes that are basically freshwater seas, the Canadian Shield, the mid continental rift and Niagara Falls. The Sudbury crater is fascinating, but Charity Shoals in Lake Ontario might be the remnants of a meteor strike and the Canadians may have found a meteor crater in Lake Huron! This is all so exciting.
    I follow Washington State geology with Dr. Nick Zentner's at Central Washington University, his lectures rock! Literally. And I am thrilled to have found your channel. Your enthusiasm for the deep history of our planet is contagious and the Great Lakes geology is fascinating! You might not be covering the huge geological stories, but yours are the small stories, the human tales of our species on this planet. The little bits of history that get forgotten...
    I did enjoy the 3 part video in Washington State. My Dad was born and raised in Tacoma, his playground was the Puget Sound; and he had a lifelong fascination with the Scab lands in eastern Washington. I wish he was still here to share in your video adventures, he would have enjoyed them so much!
    Thank you.

    • @AlexisDahl
      @AlexisDahl  2 года назад +1

      Thanks, Jane! That's so wonderful to hear. Thank you for sharing a bit about you and your story! 😊 And you're right: Great Lakes geology IS fascinating. I didn't know about any of this until a couple of years ago, and it's been a joy to learn how many interesting stories there are in this region.

  • @tacey01
    @tacey01 Год назад +2

    Love the video! Well done!! I am about 400 miles from Lake Superior. ROAD TRIP!

  • @Jeni-ow1kl
    @Jeni-ow1kl Год назад +2

    I have heard ‘rumors’ that Minoans came from the Area of Minos/Italy to mine this valuable copper?!?? A video about any insight that you have on this subject would be very cool!?!!! MANY THANKS! You are GREAT!✨⭐️

  • @yellow72bronco
    @yellow72bronco 2 года назад +8

    Entertaining video. I live in Ontonagon County and have old mine shafts on my property. Lots of tailings or poor rock left behind. Easy to find copper in my back yard . Cheers!

    • @AlexisDahl
      @AlexisDahl  2 года назад +3

      Thanks for stopping by! That's fascinating. Out of curiosity, did you realize there were old mine shafts on the property when you bought/acquired it?

    • @yellow72bronco
      @yellow72bronco 2 года назад +2

      @@AlexisDahl yes, bought my childhood home from my parents. As kids most of the mine shafts were still open, and we would explore a bit. Now all but a few have caged entrances.

  • @bsheldon2000
    @bsheldon2000 Год назад +1

    I come from a small town right in the center of North America, Stonewall, Manitoba, Canada. A lot of geological research occurred both in this town and the surrounding area. About 450 million years ago, the limestone quarries of Stonewall were the reefs on the coast line of what we now call the Canadian Shield in what we call the Ordovician Sea. If you look at the map of the world at this time, it is barely recognizable. A lot of the deep geological layers in western Canada are named after the points where those layers are exposed at the surface near where I came from. Hard to imagine this inland area was once an ocean coastline. The line where North America almost split is just south of the very large and very old Canadia Shield, which has some rocks dated to over 4 billion years old, not the oldest, but close.

  • @johns.7297
    @johns.7297 2 года назад +4

    Yes, visit the place. It's everything she talked about. Winter? ski or snowmobile; Summer: walk along the park's hiking trails; Pure Michigan. Get a lesson in geology along with your vacation.

  • @janmariebrunette-hunyady1386
    @janmariebrunette-hunyady1386 Год назад +1

    Did you visit the Ontonagon Boulder? Next time also visit Kitch-iti-Kipi. It looks to be about 10 ft deep because the water is crystal clear, but it is very very deep and the fish you see are huge. Also, grab a pastie while in the UP. The recipe was brought to Michigan by the Cornish miner's wives who made the pasties with a thick rolled edge so that the miners could hold on to the pasties with their dirty hands and then throw that piece away. The Michigan recipe has rutabagas' which is slightly different than most recipes.

  • @RavenousMedicine
    @RavenousMedicine Год назад +3

    I love how passionate you are about the geology here! It's easy to take for granted what we don't see beneath our feet.

  • @michaelwalsh1278
    @michaelwalsh1278 2 года назад +10

    We are still coming out of the last ice age. The last impact of the glaciers on the Great Lakes was 4,500 years ago. The land of Michigan is still rebounding from the weight of all the ice of the glaciers. Lake Michigan used to drain south using what is now the Wabash River in Indiana. Lake Huron drained to the north east eventually flowing through Lake Nipissing down past Ottawa eventually being discharged into the St. Lawrence River at Montreal.

    • @justmenotyou3151
      @justmenotyou3151 Год назад

      Correction. We are still in an ice age. We are in the interglacial period of that ice age.

    • @FreezyAbitKT7A
      @FreezyAbitKT7A Год назад

      When the caldera in Yellowstone blows, we wont have anything else to worry about.

    • @FreezyAbitKT7A
      @FreezyAbitKT7A Год назад +4

      @@justmenotyou3151 You are correct but it is to our advantage to keep the polar ice caps and glaciers frozen as long as possible. The desalinization of our oceans will cause a huge change in the food available and weather will change as the magnetic salty water currents will slow and warmer water will not flow from the equator to the north. It's not politics... it's chemistry.

    • @swirvinbirds1971
      @swirvinbirds1971 Год назад +1

      @@FreezyAbitKT7A depends... Most of the eruptions from Yellowstone are not super eruptions.

    • @emsnewssupkis6453
      @emsnewssupkis6453 Год назад +2

      My jaw hit the floor seeing your husband and you wearing those masks when alone in a car! That was insane. Did you both wear these at home, alone, too??? Good grief. I live in NY, the epicenter of that disease and no one at home or in cars nor anyone I knew, wore masks at all.

  • @kevind3185
    @kevind3185 Год назад +5

    I know of a spot in that area where there's a small rock out cropping with a vein of native copper. It's green in color like a corroded penny. I scratched it with my multi tool and it looked like a freshly minted penny inside.
    If you're looking for something else interesting off the beaten path in Michigan check out Mystery Valley in Posen Mi.

    • @dagordon1
      @dagordon1 Год назад +1

      Posen Potato Festival🎉!

  • @mikebrant192
    @mikebrant192 Год назад +3

    You are a tonic for these difficult times. AND I'm learning some geology, which is great, so thank you!

  • @carolebmw
    @carolebmw 2 года назад +13

    I'm a born Michigander who was transplanted to Virginia after getting married. I love your take on Michigan history. Since retirement, I've been able to polish up some of the Petosky stones. I picked up when visiting Lake Michigan. They are beautiful and interesting! So I will continue to watch your Michigan videos & recommend them to my friends and family. ps I need to spend some time at Lake Superior, too. 😊

    • @AlexisDahl
      @AlexisDahl  2 года назад +1

      Thank you so much! I really appreciate your note and the kind words. That's awesome that you've been able to polish some Petoskey stones! Out of curiosity, how did you polish them? (I have a handful of stones I'd love to polish someday and have been trying to settle on a method for doing it.)

    • @carolebmw
      @carolebmw 2 года назад

      @@AlexisDahl I started a long reply, but it got deleted. Basically, you neeseveral grits of sandpaper from 220 to 600 to 2-3000. Wet sanding is best, esp since you inhale less dust. Go to the net. You'll find good, cheap books (Mueller & Wilde, U of M press did A Complete Guide which shows other related stones, too). Also RUclips videos which give excellent instructions. It's quite easy, doesn't take too long, and gives great results. Good luck! You may email me at carolebmw1@gmail.com if you wish

    • @FreezyAbitKT7A
      @FreezyAbitKT7A Год назад +1

      There has been a climate shift that wolverines can no longer mate and winter in Michigan.

  • @Brocuzgodlocdunfamdogson
    @Brocuzgodlocdunfamdogson Год назад +2

    And here I thought the biggest failure in Michigan was the Detroit Lions.
    Edit: having access to “native” metals was a huge advantage to those lucky enough to find them. They don’t need to be refined and can immediately be shaped into tools using cold forging techniques, aka banging on it with a rock.
    This was also the case with deposits of meteoric iron. Unlike the regular iron ore found on Earth, the iron found in meteors doesn’t need to be smelted into useable iron. This made iron tools available far earlier than technology allowed.

  • @stevenleach9522
    @stevenleach9522 2 года назад +3

    Stumbled on your site - while surfing videos about the New Madrid Earthquake. Learned alot of new things watching your video. You're a lot more energetic & excited about sharing information - than the professors presenting their findings about the New Madrid Earthquakes. My 70 year old attention span with the professors wavered by the steady drone of their presentations. Your presentation activated my childhood curiousity. Don't stop making more videos! HAPPY, HAPPY - JOY, JOY!

    • @AlexisDahl
      @AlexisDahl  2 года назад

      Aw, shucks, thank you! I appreciate the kind words. I'm glad you enjoyed the video, Steven!

  • @TheNorthwoodsRVLife
    @TheNorthwoodsRVLife Год назад +8

    I ran across your channel and always love supporting other channels creating michigan content as well. love your channel.

  • @phithetagamma
    @phithetagamma Год назад

    Great video! Thanks for making and uploading!

  • @jvargas454
    @jvargas454 Год назад +1

    Great videos. Keep them coming. Thanks.

  • @Phuqem
    @Phuqem Год назад +4

    I've only made a handful of trucks to the upper peninsula I really loved visiting pictured rocks but I definitely need to make it up to copper harbor! Thanks for all of the great videos of such a beautiful state

  • @TakenTook
    @TakenTook Год назад +2

    The rest of us will let you keep your Michigan card despite not realizing that Lake Superior is a major shipping route, because they stopped playing Gordon Lightfoot's "The Wreck of the Edmund Fitzgerald" on the radio in heavy rotation long before you were born. And by the time you would've been old enough to be paying close attention to song lyrics, it would mainly be heard on the oldies stations.

  • @justajo2
    @justajo2 9 месяцев назад +1

    About six years ago I read that research has determined that much of the ancient copper tools and other items found in the Mediterranean have element content linking them to Lake Superior copper. This means that trade between the two areas occurred long before European explorers discovered the North American continent. We just keep discovering new facts about our history and origins.

  • @tender-warrior
    @tender-warrior 3 года назад +8

    These kinda videos are definitely interesting to me! I love this kind of content, and your enthusiasm and delight brings me a great deal of joy which is sorely needed at the present historical moment. I'm gonna go send this to all of my friends who like science!

    • @AlexisDahl
      @AlexisDahl  3 года назад

      That's so kind of you! Thanks, Lyudmila, really. So glad you enjoyed this. :)

  • @neil5280
    @neil5280 3 года назад +6

    Thanks for giving us a way to continue learning from you post sci-show.

    • @AlexisDahl
      @AlexisDahl  3 года назад +3

      You're so kind. Thank you! 🙂 The truth is, I just love doing this! ☺️

  • @karltupas8263
    @karltupas8263 2 года назад +3

    This video is GOLD!! Thank you so much for putting a lot of research in your content.

    • @AlexisDahl
      @AlexisDahl  2 года назад

      Thanks, Karl! I appreciate that!

  • @C.Schmidt
    @C.Schmidt 3 года назад

    Wow!!! This was such an interesting video on a topic that, at first, kinda seems like "so what that's what plate tectonics do." BUT zooming in on a small part of a REALLY big event and just like... watching what happens... really puts into perspective how much has happened on this planet in comparison to how little we see in our lifetime... (insert small existential crisis here)
    But OH MY GOSH you just exude passion for science and learning with every word you say in this video! I honestly can't help but smile and laugh along with you. Both of which are a nice spark of joy during the general chaos of 2020.
    Last new idea I swear, just noticed the sources in the description. A+ for that.

    • @AlexisDahl
      @AlexisDahl  3 года назад

      This is such a kind comment! Thank you so much! Really glad you enjoyed it. ☺️
      And I felt similarly. Like, it wasn't that surprising to me that, y'know, tectonic plates move... but really sitting down and thinking about how that affected humans millions of years later, all the way up to the modern day, was such a good time for me.
      (Also, ha ha, thanks! Partly for credibility, and partly for anyone who's super curious, I always try to leave some acknowledgement about where I got my info.)

  • @joeparish3309
    @joeparish3309 Год назад +2

    I'd heard that the Mississippi River flows through a failed continental fault zone from when Africa split with the Americas. I wonder if the previous failure (and miles of basalt) prevented the split from happening in the same place.

  • @dylanchristensen9116
    @dylanchristensen9116 3 года назад +1

    Awesome Video, thanks for making it. I genuinely enjoyed it.

    • @AlexisDahl
      @AlexisDahl  3 года назад

      Thanks, Dylan! Really appreciate you stopping by and leaving a comment!

  • @gannicusfinch7068
    @gannicusfinch7068 Год назад +2

    I saw where the "X" on the map was, and I fist-pumped. I was born in Ontonagon, but moved away as a kid. Thanks for the concise geology lesson and the walk down memory lane. Definitely a beautiful area.

  • @davesw357
    @davesw357 Год назад

    Alexis, I just discovered your videos and I find them amazing. GREAT JOB!!!

  • @Eibarwoman
    @Eibarwoman Год назад +2

    It's also seen in a buried under sand form with Montcalm County being lifted 300-400 feet above Gratiot or Newaygo Counties on the other side with buried sandstone filled aquifers from the Jordan Formation. As a result, water occasionally just gushes out from places in the Rift Valley which extends in an upside-down u shape from Kansas to SE Michigan

  • @MichiganTrailRider
    @MichiganTrailRider Год назад +1

    I’m a Michigander !!! So happy people come to visit here and not run the the tropics !

  • @Pyrolonn
    @Pyrolonn Год назад +1

    When I first heard about the rift it blew my mind too. What's really amazing is the north shore of Superior really has a lot of amazing scenery related to the 1.1 billion year failed rift. We did the north shore circle tour in 2008. Pretty much every Ontario provincial park on the Superior circle tour has something cool related to the geology.

  • @area73blog
    @area73blog Год назад +1

    I love these videos and hope to see you make more. Always nice learning more about my home state! And hello from down here in Detroit!

  • @matthewkamradt8989
    @matthewkamradt8989 2 месяца назад

    Recently came across your channel. Absolutely love your videos. I love all the history and information!! Great job. I look forward to watching all your videos!!

  • @screamingXskittles
    @screamingXskittles Месяц назад

    Wow I’m obsessed with your videos! As someone who loves geology and loves Michigan, your channel is such a treat!

  • @rnkoneil
    @rnkoneil Год назад

    Love your enthusiasm and genuine excitement ☺️

  • @jamestnov41945
    @jamestnov41945 Год назад

    Congratulations Alexis on your anniversary this was a good follow up to your Sudbury Asteriod episode.

  • @BBQDad463
    @BBQDad463 Год назад

    Thank you for this video. The story is fascinating.
    Keep on rockin'.

  • @joelmayo7523
    @joelmayo7523 Год назад

    I grew up in the area, I LOVE that you have pronounced everything CORRECTLY.. thank you nd keep up the great work.

  • @mikeg4501
    @mikeg4501 Год назад

    I’ve really enjoyed your vids. Just subscribed!

  • @debbiechang5781
    @debbiechang5781 Год назад +1

    This is fascinating. You present it in a very understandable manner. Thank you. I would love to hear more of your expertise and knowledge.

  • @WeatherEarth25
    @WeatherEarth25 Год назад

    Awesome video! Really liked your enthusiasm and presentation.

  • @thirdpig45
    @thirdpig45 2 месяца назад

    Love your videos! I live 3.5 miles south of Lake Supirior and it is AMAZING!

  • @jkunz27
    @jkunz27 Год назад

    Your smile and enthusiasm are so intoxicating!

  • @sicknsaneofficial8646
    @sicknsaneofficial8646 2 года назад +1

    My wife and I do this same thing and geek out about the history of places together.
    We went all over the Porcupine Mts last year and all the way to Copper Harbor. We're on our Way to Torch Lake right now. I wish we had thought to do videos like this sharing all we learned! Love it!

    • @AlexisDahl
      @AlexisDahl  2 года назад

      Oh, that's amazing! I hope y'all have a great Torch Lake trip. Thanks for stopping by the comments section!

  • @BrandonGraham
    @BrandonGraham 3 года назад +3

    Seems like a great success to me. North America was being pulled apart, but managed to hold it together.
    ...I can relate

    • @AlexisDahl
      @AlexisDahl  3 года назад

      It's all about perspective! But, that aside... it's been a really hard year all around, for sure - and for some more than others. Whatever your life looks like these days, I hope you're able to get some moments of peace and joy soon.

  • @rickmeader1321
    @rickmeader1321 Год назад

    I liked this a lot. Learned more than I already knew from visiting that area many times. Thanks!

  • @sirridesalot6652
    @sirridesalot6652 2 года назад +2

    When he was quite young I showed my nephew some small mineral and rock samples I had collected over the years. I also bought him some mineral and rock sample collections. The samples were small and not of the best quality but were useful in learning about different minerals and rocks. He's now a volcanologist/geologist whi says his interest was spareked by those small samples I gave him.
    Watching this video, I wonder how many youngsters watching it will become geologists or volcanologists because of this video?
    Well done and well presented.

    • @AlexisDahl
      @AlexisDahl  2 года назад +1

      Aw, that's such a sweet story. Thank you for sharing! I love how "small" experiences like that can make such a big difference in someone's life.
      And oh, wow, I hadn't even thought of that! But I'd be honored if that ever happened someday. Thanks for stopping by, and for the kind words!

  • @_wegota2319_
    @_wegota2319_ Год назад

    This was a lot of fun to watch, and I don't consider myself someone interested in geology. You're an amazing science communicator. I recently visited Lake Superior--wish I knew these things at the time, it's such an incredible piece of the natural world.

  • @sberryscake
    @sberryscake Год назад

    Great video. I very much enjoyed it. Learned something new.

  • @correnehosein4676
    @correnehosein4676 Год назад

    This was interesting and I must thank you for your infectious exuberance. Well done! 😀

  • @ladeedaa
    @ladeedaa Год назад

    So glad I ran across your channel!

  • @stevenboyd593
    @stevenboyd593 Год назад +1

    Here in Spokane basalt has taken on state flower status, we are north of Yellowstone and smack in the path of an Ice Dam of Epic proportions, that left hundreds of hexagonal basalt formations poking up out of the ground, (the wealthiest of the populace worship them by placing them in their yard with a hole drilled in the top so that they spurt water) but I digress, our flows of basalt stretch roughly from here to the west coast.

  • @dmwi1549
    @dmwi1549 Год назад

    Just discovered your channel & watched 3 of your videos.
    Love the UP Lake Superior area and in particular exploring the Keweenaw.

  • @Just_my_simple_life
    @Just_my_simple_life 2 года назад +1

    I am so glad I found your channel. I love the UP ( just bought 73 acres). Thanks for the wonderful information!

    • @AlexisDahl
      @AlexisDahl  2 года назад

      Thank you! Also, congratulations on the land!

  • @75blackviking
    @75blackviking Год назад

    You have a great channel. This vid was pretty suprising. Had no idea there was this kind of geology going on here.

  • @kenvalentine5341
    @kenvalentine5341 Год назад +3

    You might consider looking into the Michigan Basin, which is responsible for gypsum mines near Grand Rapids, oil deposits/wells in the northern Lower Peninsula, and the salt deposits under Detroit, among other things.

    • @toddgrant4268
      @toddgrant4268 Год назад

      If I'm not mistaken the salt deposit encompasses the entire lower peninsula and lk Michigan and lk Huron.

  • @dan13ljks0n
    @dan13ljks0n 2 года назад +5

    I think that this rift may still be active (a bit) in some places. A few years ago, there was an earthquake whose point of origin was by Kalamazoo, MI - right along that rift. It was small by comparison to other quakes, but I felt it (it rattled glasses in my hutch and caused some step cracks in my basement) and I'm almost on the Lake MI shore.

    • @mikezylstra7514
      @mikezylstra7514 Год назад +4

      About every 60 years there are e'quakes near Battle Creek about 4.5 - 5.3 mag. And, in addition, e'quakes have occurred near Menominee, but inland from the Lake. I read something about mild quakes often occurring in eastern Kansas which were studied and suggested (somehow) that these were likely related to the rift extending SW'ward from the sw corner of Lake Superior. Maybe there was an inverted V-shaped rift? That sharp Anna, Ohio quake maybe a pert of that? One wonders.
      In Michigan & environs, earthquakes are typically considered rebound from the glaciers.

    • @stevenburkhardt1963
      @stevenburkhardt1963 Год назад

      I was cleaning a boat at the time in Hastings, never noticed it

    • @dan13ljks0n
      @dan13ljks0n Год назад +1

      @@stevenburkhardt1963 It's funny, my neighbor across the street was outside in his yard - he didn't notice it either. My basement developed some step cracks from the quake. I think the basement worked like a sound box in a guitar (the body cavity) and amplified the event a bit.

    • @toddgrant4268
      @toddgrant4268 Год назад +2

      I believe it centered in Galesburg MI, in-between Kalamazoo and Battle Creek.

  • @robertcoplin2830
    @robertcoplin2830 2 года назад +1

    Thanks! Great presentation and very interesting. You definitely had me fired up for a trip to the area. The Great Lakes Region is one I have never gotten to visit. I like that chunk of basalt.

    • @AlexisDahl
      @AlexisDahl  2 года назад

      Thanks, Robert! I hope you get to check out the Great Lakes area someday. I'm definitely biased, but think it's full of great spots and people.

  • @C.O._Jones
    @C.O._Jones Год назад

    Cool! Glad I found your channel!

  • @jeramyinzunza1374
    @jeramyinzunza1374 3 года назад +1

    Your passion is on a different level 💕

    • @AlexisDahl
      @AlexisDahl  3 года назад +1

      Ha, it comes pretty easily! It's like... you take this beautiful landscape (already something to be excited about) and then add on a fascinating story about how the land got to be how it is. It's hard for me not to be delighted! :)

  • @johnrogers1661
    @johnrogers1661 3 месяца назад

    As an HVAC contractor for the past 40 years copper is very close to me, and I appreciate the metal as it allows me to make a good living. Recently I received a 5lb copper bar made of UP copper as a Christmas gift, I will cherish it for the rest of my life! All things UP are fascinating thanks partly to your way of sharing this information.

  • @blairanderson9098
    @blairanderson9098 2 месяца назад

    These are fun videos!! I’m sharing them with others because I’m fascinated by the fun facts you pull out of our home here in the UP.

  • @mommachupacabra
    @mommachupacabra Год назад +1

    I have a few Michigan copper nuggets I use to make pendants. Really gorgeous stuff.

  • @grandrapids
    @grandrapids 3 года назад +1

    Very interesting and you have a great style! keep it up, I would love to see more from you.

    • @AlexisDahl
      @AlexisDahl  3 года назад

      Thanks so much! I appreciate that. I'm currently working on releasing about two videos per month, so stay tuned! 🙂

  • @sparklytreesarecool
    @sparklytreesarecool Год назад

    Thank you for great intro to the subject

  • @bobyoung1698
    @bobyoung1698 Год назад

    I've sent this to several friends, including some former students who were enrolled in my seismology class. Thanks!

  • @peterjamesfoote3964
    @peterjamesfoote3964 Год назад

    They are interesting. Love your enthusiasm!

  • @carlc16
    @carlc16 Год назад

    Ms. Dahl, I have just discovered your channel here. Thanks algorithm! I love the fun you have presenting. Best wishes and mucho happie! 😄😃😀 The binging, starts, now! 😀

  • @invictusfarmer7188
    @invictusfarmer7188 Год назад +1

    go to whitefish point and go all the way to the actual point on the beach. that spot is just awe inspiring.

  • @differentfins
    @differentfins Год назад

    Haha cool video. I was born on the north side of Superior. Such a cool lake. I took my kayak out on it last summer. I found an entire beach of basalt pebbles in a small cove, so awesome. There is an abandoned silver mine on the Canadian side that is now full of water. It was the worlds largest silver mine at one time. I didnt know about the copper down south, that is neat!

  • @ChrisBryantMusic
    @ChrisBryantMusic 3 года назад +1

    After watching your video a couple weeks ago, I just saw the latest SciShow video and thought: this seems familiar... It’s cool seeing you tell the story more personally here with your own voice!

    • @AlexisDahl
      @AlexisDahl  3 года назад +1

      Thanks so much! The SciShow episode has been in development for a while, before I knew I definitely wanted to make a video of my own. But after exploring the area, I couldn't help but put my own spin on it!

  • @jimmhb1986
    @jimmhb1986 Год назад

    Great video!

  • @timrev8
    @timrev8 Год назад

    I just found your videos, thank you for all your hard work!!!!

  • @Nanno00
    @Nanno00 Год назад

    This was really cool to watch. I live in the UP about 3 miles from Lake Superior.

  • @jonihenry8124
    @jonihenry8124 2 года назад

    I love your videos and I'm sharing them on my fb page and with my young granddaughters who love science!!! Thanks so much for making learning fun and keep up the great work!!!

    • @AlexisDahl
      @AlexisDahl  2 года назад

      Aw, thank you so much! That's so meaningful that you're sharing them with your granddaughters, especially - that's so heartwarming! I'm glad you're enjoying them!

  • @randal_gibbons
    @randal_gibbons Год назад

    Excellent content. Thank you.

  • @paperkay
    @paperkay Год назад +1

    I'm loving the Shoe On Head energy :))) And to know I'm not the only one who gets excited by cool rocks found on hiking trips...