Скачать или смотреть Catastrophic Explanation for the Last Ice Age - Lance Weaver, Utah Geology

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We've all heard the popular theories explaining the clockwork cycle of glaciations that generally boil down to a series of overlapping eccentricities in the Earths' solar exposure. These Milankovitch cycles still don't entirely satisfy our need to explain the bistability of the system: what causes the Earth to regularly jump from glacial to interglacial over the course of a few tens to hundreds of years? Lance Weaver from the Utah Geology website suggests the hypothesis that a true polar wander would neatly fill in the blanks, whereby some variety of mass imbalance would cause a true pole shift event that snapped the axis of the Earth between two stable barycenters. It would certainly explain why the periodic glaciers seem to be centered directly over Greenland instead of the North Pole. Let us know what you think of the presentation in the comments!

Lance's Blog: https://utahgeology.com/were-the-ice-...

00:00 Go!
00:03:30 So, you're a geologist?
00:05:09 Are all the red rocks of the Southwest related to one another?
00:13:32 Weird geology of Southern Oregon
00:15:38 The desert clarifies history
00:17:48 How similar are the forces that shape the Earth, millions of years apart?
00:19:35 Are the old geological stories being updated?
00:20:17 The theory: Did true polar wander cause the last ice age?
00:23:29 What is uniformitarianism?
00:25:53 How did creationism cede to modern geology?
00:30:41 Does sedimentation change sea level?
00:31:55 What are the forces that could shift the crust?
00:34:50 What are the current issues with our understanding of the ice ages?
00:36:15 First, an argument for uniformitarianism
00:41:37 Can you tell the difference between subsidence and uplift on a grand scale?
00:50:56 What's the ratio of catastrophic events to uniform events?
00:51:47 Milankovitch cycles are a bad explanation for ice ages
00:58:24 A true polar wander caused the Ice Age
01:03:19 A list of post hoc arguments for why there were no glaciers in Siberia, but glaciers in New York and Berlin
01:06:01 Why do geologists refuse the evidence for a true polar wander?
01:10:22 Other justifications for the lack of glaciation in Siberia
01:16:26 What is the periodicity of the glacial periods?
01:18:44 Did the Antarctic pole also shift?
01:21:48 A cosmic mechanism for glacial periodicity
01:27:13 Cosmic turbulence disturbs the Earth's rotation
01:33:09 The use of mathematics in getting far out theories to be accepted
01:40:23 What's the role of electromagnetism in all this?
01:43:17 Is there support in the literature for the relationship between TPW and the Ice Ages?
01:47:37 A pivot: Expanding Earth
01:58:03 How hard is it to precisely date the mountain chains?
02:02:12 What would a pole shift look like for an observer on Earth?
02:12:09 Are there issues with radiocarbon dating?
02:25:24 Why does it matter if the dates are wrong?
02:27:27 Is there an alternative to depending on radiocarbon dating?
02:30:22 The value of the fringe for the progress of science

#poleshift #geology #iceage

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