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Author Question: The Appalachian Mountains may have once been as lofty as the Himalayan-Tibetan Mountain belt is ... (Read 42 times)

strangeaffliction

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on: Feb 28, 2020

Question 1

Folded limestones that are exposed high elevations in the Himalayas were originally deposited as sediments in a ________.
◦ late Paleozoic syncline north of the Tibetan Plateau
◦ deep ocean trench along the southern margin of India
◦ Cenozoic fault basin between Africa and Arabia
◦ marine basin between India and Eurasia

Question 2

The Appalachian Mountains may have once been as lofty as the Himalayan-Tibetan Mountain belt is today. Why are they not this high now?
◦ They formed long ago, and erosion has beveled them to their present low elevation.
◦ Opening of the North Atlantic Ocean converted lithosphere to asthenosphere beneath eastern North America, forcing eastern North America to sink to low elevations.
◦ The mountains cooled following the collision, which increased the density of the of the rocks by cooling, and isostasy forced the mountains to sink.
◦ They developed a dense crustal root following collision, and isostasy forced them to sink to their present elevation.
Earth Science ¦ Tarbuck, Lutgens, Tasa ¦ 15th Edition
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Marked as best answer by strangeaffliction on Feb 28, 2020

Tonny

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Reply #1 on: Feb 28, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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strangeaffliction

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Reply 2 on: Feb 28, 2020
Thanks for the timely response, appreciate it

aruss1303

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Reply 3 on: Yesterday
Wow, this really help

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