Evolution of the Appalachian Mountains
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- เผยแพร่เมื่อ 9 ก.พ. 2025
- Stretching approximately 2,000 miles from the southern states above Florida up into parts of Newfoundland, the Appalachian Mountains are culturally, ecologically, and geologically rich. Although they’re named after the Native American Apalachee people, the geologic history of the Appalachians goes even further back. The hills were growing and changing long before the first hunter-gatherer groups inhabited the area 16,000 years ago. These mountains are part of an even larger belt as far as northernmost Norway and Greenland and have undergone numerous tectonic events. In this talk we will explore the tectonic making of the Appalachian Mountains, from their origins over a billion years ago to their modern post Ice Age setting.
Jerry Burgess joined the Department of Earth and Planetary Sciences as the Director of the Environmental Science and Studies Program. He received his doctorate at Hopkins and MS in Geology at the University of Maryland. His research is highly interdisciplinary, ranging from geology to exploring serpentine ecology community dynamics. Current research interests center around using petrologic and geochemical tools to investigate igneous and metamorphic rock histories, with a focus on petrogenesis and the growth and evolution of the Appalachians.
Learning about the Geology of the US East Coast and the Appalachian Mountains is my passion! I cannot stop learning about it. I am so interested in plate tectonics. More specifically, the Wilson Cycle and how it shaped the Appalachian Mountains. I am fascinated how this same cycle of oceans closing, orogenic events, and subsequent rifting occurs over billions of years. I am very interested in the details of how convergent plate boundaries transition to rifting. And how a pristine ocean like the Atlantic, possibly forms subduction zones in the future to complete the Wilson cycle. I am also interested in why this cycle seems to repeat over and over again with the same land masses (generally speaking).
Im going diwn the same rabbit hole the last few weeks .
Me too! So incredibly fascinating.
Me too, but I'm significantly lacking background education on this topic, but nevertheless I love it and I'm slowly learning new things.
We need an animation showing every orogeny, accretion and rifting event to fully see it all. Maybe. Thanks for so much insight!
Something like the Christopher Scotese work? (for example, th-cam.com/video/bzvOMee9D1o/w-d-xo.htmlsi=AFS3dyfO4i7DbwCq)
@@hertzer2000 shoot I just watched a good one the other night. Lemme see if I can find it for you.
Do it!
@@kellymurphy6642I would be interested in watching that too if you can locate it.
Yes, I would be interested in that too.
That first 2D diagram showing the different ways of thinking about the earth: chemical versus mechanical really clarifies a mystery about geology that I have always had.
I have always seen both separately and have long wondered about how they matched up: your presentation clears it up immediately! Thank you.
It’s always good to cover the basics.
This was one of the best overviews of east coast geology I've come across. Thank you for a beautiful and clear presentation. I live near Philadelphia and have been working on understanding the geology around me. ❤
Oh my goodness you help me so much on my science project because for over an hour I was trying to understand it but there was too much information. This helped me greatly THANK YOU!
Great presentation. thx
Glad you enjoyed it!
Excellent presentation!
Very cool.
Thanks for a comprehensive history, from the piedmont region of South Carolina.
enjoyed this!
GREAT OVERVIEW OF APPALACHIAN GEOLOGY!
I'm relocating back to the southern blue ridge province (- just south of the NC/GA line). So I'm really excited to get out there to see those ancient mountains again!
As a former park ranger in Yosemite, Yellowstone, and other western parks, learning the geology of the west was a wonderful bonus.
Any suggestions about any other high quality presentations on this subject and other aspects of Appalachia will be greatly appreciated!
Thank you! I finally got it!
Very interesting, from Nova Scotia in the Avalonia Terrane
Very interesting from Cornwall (UK), also in the Avolonia Terrane!
Excellent! Thank you.
Thanks for sharing! Very informative.. I pronounce it
App-uh-latch-un 😊
Was anybody around to see this evolution and make a video about it?
Minor question - I heard somewhere that Long Island Sound started as a river valley outlet from the ancestral Appalachians, if anyone has more on this.
I think it's a giant moraine, marking the maximum southern extent of the glacier. Till can flow out of any glacially suped-up river, but the melting glacier dumps these long bands of sediment called moraines.
That’s what I thought at first about Long Island but turns out it’s way too big and was there before the glaciers - the low hills running down Long Island are the actual Moraines from the glaciers.
@@johnwatson3948 Oh interesting! Glacial geology--ie., glaciers--are so fascinating! I've been walking around on my local drumlin swarm and loving it.
Google assistant recommended your video
✨️🙂✨️
Uuummm!!!
Man, your camera is tripping me out. It's as if the video was filmed by Robert Crumb.
😂😂😂
What do you mean by the word "ah"? You seem to use it quite often.