Stratigraphy of Glacier National Park
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- Опубліковано 14 чер 2023
- Geologist Callan Bentley (Piedmont Virginia Community College) provides a formation-by-formation tour of the different Mesoproterozoic sedimentary formations (and one Neoproterozoic igneous sill!) that can be seen along Going-to-the-Sun Road in Glacier National Park, Montana. Various primary sedimentary structures are noted, and overall depositional interpretations are offered for each package of rock.
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I made it to GNP in May 2024 and this video greatly enhanced my appreciation of the rocks in the park. Thank you!
Lots of good information in this video for depositional environments. Very helpful thanks.
Thank you for this excellent presentation of the Precambrian sedimentation at Glacier Park. When I was in school, they pretty much skipped this part of Earth history. I was/am a sedimentologist, and your presentation was as good and being on a field trip. I've been looking for information on the geologic history of the park because I'm a retired geologist going there in July for a family reunion. They already told me they want me to tell them what was going on here when the rocks were formed. Thanks a lot.
much appreciated to talk at the outcrop, it makes it so much more interesting
Great video! Made me feel like I was on a field trip.
Retired geologist heading to Glacier in May 2024 so I am very appreciative!
Excellent discussion
Good video. Tough doing geologic analysis on outcrops on the GTTS road.
Neat tour, thanks! I visited Glacier National Park as a kid in the 70s and had no idea what I was seeing.
I really enjoyed this video, thanks!
I’ve been looking for detailed info on glacier’s geology for year! This is great. I’ve made several video guides on GNP and want to add more geology learning. this will help a lot. FYI my GNP vids over a million views are you available to answer Qs? Or maybe even be interviewed via zoom? Could be good publicity for your channel.
At the 7:00 mark you can see that there is no evidence of “bio-turbation” that would be caused in modern deposits by burrowing worms and mollusks. The thin laminae are perfectly preserved.
You can see living stromatolite mounds at the Hamelin Pool at Shark Bay in Western Australia. Access is limited, by there are plenty of images on-line.
Can you Please further describe the change in the depositional environment by making a rough sketch or an animated video.
Amazing video, thank you for introducing me into how intricate the "rock people" science can be. (PS: I had a real hard time not quoting Sheldon on this).
Wait, so at 21:45, you talk about stromatolites forming in higher water, but being impeded by mud; (truck interrupts), I thought that you need a steady low flow of dripping water for stromatolites formation, not a pool of water. Am I misunderstanding this previous statement?
You are. Sounds like you're confusing stromatolites with stalactites.
What geological period do the rocks in the video belong to?
Mesoproterozoic