- Видео 39
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Glenn Simonelli
Добавлен 25 май 2009
Varves!
Varves are very fine-grain sedimentary deposits that form on the bottom of lakes. The presence of varves at Croton Point Park, in New York, tells us that at one time, toward the end of the last ice age, the Hudson River was a freshwater lake. Geologists call this paleolake :Lake Albany".
Просмотров: 506
Видео
How Does It Work?
Просмотров 1812 года назад
Glenn's Science Videos Presents: How Does It Work? A special Purim production for the students of the Leffell School. Warning: this video contains scenes of malicious, gleeful destruction of well, technically school property.
How Does It Do That
Просмотров 933 года назад
A brief explanation of the physics behind the Purim project.
Schist!
Просмотров 47 тыс.4 года назад
Some of the rocks on our nature trail aren't from around here! Which ones don't belong? Where did they come from? CORRECTION: Schist is metamorphosed mudstone, not granite as I state in this video. Thanks to Charles for this correction. BTW, mudstone is a sedimentary rock. Granite is igneous.
International Look Under Stuff Day
Просмотров 694 года назад
No new trees this week. If you've watched the other videos, you can already identify about 95% of the trees growing on our nature trail. Instead, we will celebrate a new holiday: International Look Under Stuff Day.
The Birch and the Poplar Trees
Просмотров 1,4 тыс.4 года назад
Identifying some of the plants and trees on our school grounds. Lesson 6: The Birch and the Poplar, or Tulip, Trees. This video also corrects a mistake on the video about maple trees and explains how to tell the different between Norway maples and sugar maples.
Beech
Просмотров 384 года назад
Identifying some of the plants and trees on our school grounds. Lesson 5: The American Beech.
Oaks
Просмотров 344 года назад
Identifying some of the plants and trees on our school grounds. Lesson 4: Oak Trees, including the red oak group and the white oak group.
Hickory
Просмотров 144 года назад
Identifying some of the plants and trees on our school grounds. Lesson 3: Hickory trees, and how to tell them from ash trees.
Poison Ivy Video
Просмотров 324 года назад
Identifying some of the plants and trees on our school grounds. Week 1: How to identify poison ivy.
POPular Self Help with Dr. S.
Просмотров 1254 года назад
"Remember: If you're unhappy, it's your own fault!"
Worst Christmas Song Ever
Просмотров 2144 года назад
Did you know, back when I lived in Indiana, you needed a license to have a dog, but not to have a child? Just saying. For charts, email: glenn.simonelli@gmail.com Glenn Simonelli is a blogger who has way too much time on his hands. His most recent collection of blog posts, "A Little Cynicism Never Hurt Anyone," has little chance of ever being published.
How to Use a Protractor
Просмотров 1329 лет назад
Glenn's Science Videos Presents: How to Use a Protractor I'll bet you didn't know that the protractor was invented by Agnes Protractor.
Happy Birthday (Sing-along Version)
Просмотров 37910 лет назад
Sing-along version of Happy Birthday, a music video
😮😮❤ this is 😲
Really liked your video.... well explained, beautiful example/samples..... Too bad that there was a couple of example out of zoom a bit but overhaul nice.... Would be nice if somebody could somehow include color pictures of rocks under a magnifying lens that would help to recognize them better in the field..... Just this small video alone, helped me a lot to better understand mineralogy...... Thank you !!
Native Americans as well, as old landslides or construction will leave scattered varieties of rock too. When it see these i look for quartz veins
we have a sample of schist with mica. Thank you we have learned alot
Eeeeeeecccchhhh
I’ve never heard of schist forming from granite. Granite becomes gneiss under pressure and temperature. It is usually mudstones that change into shale, then slate,, then schist…This is what I am aware of anyhow!
Yes, you are correct. I made a mistake on the video.
Yes, however, from what I have seen granite CAN be a parent rock of gneiss, just not shist.
Great videos by the way, keep them up!
thank you sir.
Tulip poplar is NOT a poplar! It’s just a name, completely different family!
You are correct, it is not a true poplar. But that's what everyone calls it around here, so that's the term I use in the video. Common names of tree often vary depending on where you live. Hence, the blue beech; I mean, the water beech; no, I mean ironwood; no wait, it's a muscle tree; no, it's a hornbeam . . .
You are an interesting man! A musician Im assuming as ive seen a piano in your home and a scientist as well or geologist?..and a comedian to boot and im guessing ive not covered all u do!😁
Thank you for the comment. As long as you precede each term with "amateur", I'll agree with you. Which one of my video shows shows the piano?
I truly enjoyed your video and will use this in my Earth Science class as an example of varves! Thank you!
Yeah ive had enough of these schists too! The schist is everywhere! Its confusing having so much schist around im up to my knees in the schist! Im on the Ohio river so ..✌️🤙
I rockhound on the mountain my cabin is on in cascade Idaho and the rocks that don’t seem to belong are usually really old looking green orbicular rhyolite… basalt with tons of holes. Some stuff that looks like coral fossils. some stuff that looks like ocean jasper… but maybe gabbro? Some monazite. One piece of nephrite jade. One tiny piece of obsidian that’s grainy on the outside. One really really small aquamarine crystal filled pegmatite fragment.
“ Where’s Waldo “ !😊
Molto belle queste pietre
That is the rock that we always perform in ny
Yes. Many people have noted that New York is full of schist.
I wish I could find these types locally all we have is limestone.
Are there many fossils in the limestone? I miss looking for fossils.
Your video just appeared on my RUclips feed, as I'm very interested in geology. 1) Your commentary and narration is excellent. 2) The video quality is TERRIBLE. For a couple hundred dollars you can get a cell phone which produce REALLY excellent sharp video. Do us a favour and throw away the phone that produced these videos and buy a better cell phone. Almost any phone over $200 will give you wonderful results, compared to the phone you used. 3) In spite of the bad quality video, I'm going to subscribe, because your commentary is very good! But rock and mineral ID is really dependent on high quality video. 4) Please let us know WHERE you are located! Not a clue anywhere on your "About" tab. Though I guess you are on the eastern part of the USA. Maybe Pennsylvania?
I found some weird rocks, in Landers, CA, where I visited last month. I had uploaded the video, two kinds of rocks are shown in it. First rocks had weird protrusions (nubs?) like the ones found in so called megalithic walls of Inca and Egypt. Second rock type, definitely volcanic, had a string of harder rocks arranged in linear fashion. Some had CROSS shape... linear was weird enough, but cross arrangement? How is that possible? Have you seen this kind of rock formation? What are they called? Please take a look, I thought they were andesites, but I could be wrong. Thanks,
Very strange. Definitely igneous rocks. Uneven mixing of the chemicals in the magma creates slight differences in hardness in the rock as the magma cools. Over time, the weaker areas weather and erode more than the harder areas. So my guess is that what looks like inclusions is probably just the result of uneven weathering.
Imam i ja nekoliko kamenja . Svetlucaju .zanima me sta je i imali vrednost
Perfect lecture! :) Thank You!
Great teach 🧐
Prevod
Good ☺️
I live in a area where most all of the rocks are drop rocks
Interesting. Is there much other evidence of glacial activity?
@@gsimonel yes most of Montana’s geology is glacial.
Hey can I send you a photo of this tree I have I can’t figure out what it is:(
Hi Savannah. I can't make any promises, but I'm happy to look at the photo to see if I can recognize it.
🙏 good job 👍
Very good teaching geology video... keep it going...
Thank you, Douglas.
👌🙏
It has been a long time since I studied geology in college. I very much enjoyed the revisiting of the basics of the study of geology. Thank you very much.
Schist happens!
Nice 👍
Love the video Glenn! Glad to see you getting some new followers here :). I really enjoyed the bit about glacial dropstones!
I have minerals
I have it.
Wow very good job. 👍👍
If you found some under a church, would you be like; "HOLY SCHIST" ?
Groan . . .
@@gsimonel sorry,lol
ruclips.net/video/Acfy_mEQAUoy/видео.htmlre
❤️❤️❤️❤️❤️🇻🇳🇻🇳🇻🇳❤️
Schist is mine is not like yours...will maybe i have a large dark big black shiny...hope if you dont mind..but
I used to mountaineer...looking at the rock, sometimes very very closely, was one of the side pleasures of the game. Worked underground in coalmining, saw a lot of rock, sometimes a hellovalot more than I wanted to. It is a fascinating hobby and can supply a lot of information about the immediate locality... Great stuff...great wee video...
Schist - I thought you were just cussing in German !
Glenn are you a geologist?
No. I received a masters degree in geology, but that was many years ago. As someone else pointed out, schist is metamorphosed mudstone, not metamorphosed granite, as I said in the video. A professional geologist would not have made a mistake like that.
very nice place to hounding rock it's beautiful place.
If there is cole there even if someone put it there. ? In time doesn't diamond's form from cole?
No. They are both carbon but diamonds form deep under extreme heat and pressure. Diamonds are pure carbon, coal is not.
Thank you sir. I really did enjoy this brief lesson about our mother nature. Bless you. Liked and Subscribed.
When I clicked on this I thought...BOOORRRIINNNGGG but I stayed and was glad I did. It's actually way more interesting than I anticipated. Thanks for making me not a dumb dumb 👍
So glad this vid taught you something that will be useful to you, So many Video's teach you thing's ( which just take up Brain Space) no cranial flatulence here...lol bah ha ha ha ha.
@@akatripclaymore.9679 I'm not sure if it's 'useful' information for me, don't know if identifying rocks is something I need to know, I got this far in life without knowing 😆maybe a question might pop up on a quiz night 😂 but it's definitely interesting information.
@@akatripclaymore.9679 I get sarcasm, you're just not very good at it..so what do I say back to it? 🤷♀ just be polite 😆
@@akatripclaymore.9679 And my original comment was semi sarcastic too btw
you were right 1st time
Is it common or possible for schist with a lot of mica to also contain gold as well?
Gold is not associated with mica, so the amount of mica in the schist is probably not relevant. Gold is often found with quartz, so it might be possible to find some in schist with a high quartz content. I'm assuming, though, that the process of turning the original granite into schist doesn't remove or alter the gold somehow. I'm not a metamorphic geologist, so I don't know for sure, but I don't think that's likely.
There are quartz veins in schist that are gold bearing although not in the schist itself.
@@argonaught5666 Thanks for clarifying. I am correct in assuming that the quartz veins would have formed later, after the schist had already metamorphosed?
@@gsimonel I'm no geologist but yes. I assume the schist was metamorphosed and then a cooling off period. Then an activation of the intrusive broke it and solution worked through those channels and formed gold bearing quartz veins. Keep in mind, geology includes a lot of conjecture. For instance, the great Boulder batholith in Montana is presumed to have four major events of activity. In the last one the interior was pretty solidified and not much happened there. However, the margins were thinner and that is where things broke up allowing for the intrusion, formation of pigmatite dikes. In these all kinds of rare earths and crystals formed. So I would imagine that these same processes happened in the schist and gniess bodies. Rochester basin out of Twin Bridges Montana is a good example of gold veins in schist. The geologic schools visit it often because it is known as basement rock, some of the oldest on earth.
respect
That was very educational , rocks tell so much history it blows your mind sometimes👍
That's what I love about geology. A young boy once said to me that they were like "mini time machines." He was right. If you know what they are and how they form, it's like going back in time hundreds of millions of years.
Shist brought me here because in the cairo museum there is a shist disc. Now i know how difficult it must be to make that disc out of shist i am pretty much off the fence there must have been advanced tools in ancient history.