Prisoners Rock Tuff Cone and Petroglyphs in Lava Beds National Monument, California
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- Опубликовано: 29 сен 2024
- Geology professor Shawn Willsey takes you on a tour of the geology and petroglyphs of Prisoners Rock, an interesting hydrovolcano in Lava Beds National Monument in northern California.
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Shawn Willsey
College of Southern Idaho
315 Falls Avenue
Twin Falls, ID 83303
Archaeologist here. I'm pretty sure I spotted several petroglyphs in the first segment before you reached the main (fenced in) area. There were petroglyphs all over the rocks, at least up as high as someone could reach. I wonder what stories were scratched into those walls!
Another well presented video. The bird detritus you commented on were likely the result of generations of nesting and roosting barn owls(Tyto alba) the are very attracted to the type of potholes you see on those cliffs. The consume huge numbers of small rodents and they do not digest the bones and fur but rather cough them up several hours after eating their meal.
Thanks for the info.
Your videos are always so interesting👍Thanks Shawn 🌲
Your "boots on the ground" videos are really neat! It's like we are right beside you finding cool formations and deposits, in places I didn't know about. It's also fun to already be familiar with pelagonite, etc. . Thank you Shawn. ❤
Thank you, Shawn! Your vignette style of videography is an outstanding and effective way to tell the geological story of the world. Again, thank you!
Wow, thank you!
Wow, when I visited those petroglyphs, I did not know that it was the side of an ancient volcano. Thanks for telling us about Prisoner’s rock.
Excellent. "A lot to digest here."
Another outstanding video. You style is very welcome. I am learning. Wish I had known these things years ago ago.
Awesome Shawn! An idea for you: there are two small lakes in the Sierras near lake Tahoe. Cup lake and Saucer lake. Cup has the most beautiful blue shades of water, but nobody knows how it was formed. Saucer is close by, but has strange looking boulders all over. Like nothing else nearby. So bizarre. Would like to know what you think...
There is an excellent presentation on the petroglyphs called "Spirit Songs and Sacred Fire", by Robert David, on RUclips. Not doodling.
When the early USA explorers encountered the Modoc Indian Tribe, the Indians informed them that the petroglyphs were made by those who came before them.
i was shown where the old ones lived BEFORE the Shasta Indians came to live there with their red hair & green eyes and fight at night tactic. Loggers could not erase it.
@@ResortDog -- ??????
The Shasta's are not like their neighbors. The war paint is all black with white dots and they attacked at night. The men counted coup and the women & kids smashed in the head of any opponents who stayed down with basalt bowling balls.The loggers just used the undug site for a loading platform. Missed the main rings.@@cwj9202 The cannons the troops abandoned in the Klamath River canyon are still unrecovered.
The gliffs were made when the water was still in the lake. Our government drained Tule Lake to starve out the Modoc. Now they complain that there's no water for the farms! 😢
@@GrandmaBev64Siskiyou County.
Another enlightening video. Thank you so much for taking us to places where many of are unable to go.😊
So, lake bed volcano/ hot springs, like you see in Yellowstone, but with occasional basalt/ lava bursts mixed in? Quite different!
Never knew this was a ring although I've been there a few times. Fort Rock in OR to the north is a another similar example of this type of formation
Yep. Wanted to get there too but ran out of time.
the petroglyphs may be a geologic instruction?....
Looking forward to the next roadcut. Always informative, thanks.
More to come!
my bet is that people who worked with rock understood it pretty well... probably better than we imagine... like... gobekli tepe... far fetched little time capsules in our existence... the population of the earth... was inevitable....
Thanks for another enlightening and entertaining excursion to some of the most exotic geological wonders in America.
Good video as usual..
Excellent..
Get a better camera..😉
Hmm. The videos look OK to my untrained eye. Using a GoPro Hero 8 mostly.
WoW.. I am most impressed with the miles you cover. Surely you must come across a few Rattlesnakes in your ventures.
Not very often. Saw one this year and I traveled a lot. They are more reclusive and less commonly encountered than most folks think.
Any petroglyphs at the site of rider on horseback, or of horses?
In the Auckland/South Auckland volcanic fields in NZ, nearly all the volcanoes started off that way - massive phreato-magmatic bursts that created tuff rings/tuff cones.
Very cool. Would love to see some NZ geology someday.
hiking with Willsey....
If it’s @250ka, isn’t it possible that it could’ve been a cinder cone that had its loose scoria eroded away by the same wave action?
I have heard in the past bits and pieces about that area in CA . I suspect that owl nesting area is long and well used. Owls cast up waste pellets from their diet. All the bones are from the weathering and disintegration or the pellets. Owls are fascinating creatures. I'm glad to see part of it in your video series. Thanks for sharing this.
Do you get the sense that you could be in a very large old highly altered mega volcanic caldera?
No but there are other volcanic vents in the area.
Very interesting. Thank you for another great field trip.
Thanks！！
Love your videos! Question…why does the video seem to frequently pixelate? Low res camera?
Not sure. They look good on my end. I'm using a GoPro Hero 8 for most of these.
You said, if I remember correctly, the tuff is dated to 250,000 years ago. How was this date determined? I would be interested in hearing how the various formations you visit are dated.
It is called Prisoners Rock because of its proximity to where the Japanese were held during WW2. So I was told.
Good to know. Thanks.
I like the information you share, but its really hard for me to watch when the camera moves so fast.
My camera skills are slowly evolving. Thanks for your patience.
This is in almost in my backyard. About 30 miles as the crow flies. Were You blurring out the sage brush to protect it's identity? !:-)
Thank you, Brother.
I recognised those rocks before you said…. It’s sticking thank you Shawn great place
How do we know it’s 275,000 years old? Sounds like a guess. Great video, interesting formations.
I also think the paint wouldn’t last 9,000 years…. Paint color on my house doesn’t last a year in Arizona.
Caliechi(sp) is not a "paint" it is a layer of calcium carbonate in the soils. Such layers are common in a good portion of the west. It is common where I live and forms a rock hard layer. It is found in hard water. Scrubbing it off sinks and faucets is a constant battle and can require tough cleaning solutions to remove.
@@Anne5440_ my company blasts calcium carbonate from the water line of fountains and swimming pool tile using soda ash… the non calcified rain will wash that off in two years
Great video of the petroglyphs. I was trying to decipher some markings at 8:48 which looks like a volcanic eruption. Pretty much my interruption.
Thanks , what a great place ! The spatter cones in the distance, awesome 👏. Planning a trip right now ! Thanks again
They drained the lakes there, to starve out Captain Jack and the rest of the Native American People. There was a huge lake there!
❤
I love to see my local geography featured in youtube
Thanks!
Thanks so much. I really appreciate it. Helps with making more videos.
Hi Shawn, I have been trying to get a message to you about the float down the Grand Canyon next year. I and my wife are very interested in joining you on that trip. Please save two seat for is. Thanks and really enjoy your videos.
Al
Awesome news. Please email me at shawnwillsey@gmail.com and we can get you on the list. I should have trip dates by end of October.
Great petroglyphs
The canoes made the marks
Cool place.
Very cool ❤ I regret discovering my love of geology after leaving the west coast.
Better late than never