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Historical geology

Geological Time Scale

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Environmental Science
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Historical geology
Phanerozoic
Geologic time scale
Glaciology
Cenozoic
Ice ages
Climate history
Quaternary
Pleistocene
Epoch
Pliocene
Quaternary glaciation
Environment
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Geologic time scale
Phanerozoic
Historical geology
Planetary science
Climate history
Extinction events
Geological history of Earth
Cenozoic
Cretaceous
Permian
Pleistocene
Mesozoic
Environment
geology time scale geologic eon epoch

Eon Era Period Epoch Major Events Phanerozoic Cenozoic Quaternary (0-1.6 million yrs BP) Holocene (Present-10,000 yrs) Modern humans develop. Pleistocene Ice Age Interglacial. Pleistocene (10,000 -1,600,000 yrs) Pleistocene Ice Age. Extinction of many species of large mammals and birds. Tertiary Pliocene (1.6-5.3 million yrs) Development of hominid bipedalism. Cascade Mountains began forming. Climate cooling. Miocene (5.3-24 million yrs) Chimpanzee and hominid lines evolve. Extensive glaciation in Southern Hemisphere. Climate cooling. Oligocene (24-37 million yrs) Browsing mammals and many types of modern plants evolve. Creation of the Alps and Himalaya mountain chains. Volcanoes form in Rocky Mountains. Eocene

Chapter 1- New World Beginnings

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US History
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Historical geology
Continent
Ocean
Angular mil
Ice age
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APUSH 13th Edition

Delphanie Wu Hr.5 11/26/11 New World Beginnings (33,000 B.C.-1769 A.D.) Beginnings Recorded history of Western world began 6,000 YA Mid Easter people developed written culture The Shaping of North America 225 mil YA: Oceans and continents formed from large land mass Mt ranges formed by crust shifting and folding N Am-10 mil YA by Canadian Shield 2 mil YA: Great Ice Age-blankted parts of EU, Asia, and Americas glacier retreated 10,000 YA and left pre-sent day NAm Peopling the Americas Great Ice Age exposed land bridge between Eurasia and Nam evidence suggests nomadic Asian hunter immigrated for 250centuries 10,000 YA: Ice Age ended and nomads now stuck on isolated Americas ice melted and they wandered all the way to the tip of SAm

Chapter 1 Notes

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US History
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Geology
Historical geology
Physical geography
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Geology of Minnesota
Supercontinents
Climate history
Ice ages
Canadian Shield
Bering Sea
Americas
Continent
Environment

Chapter 01 - New World Beginnings---33,000 B.C.-A.D. 1769. ?I. The Shaping of North America 1. 225 million yrs. ago supercontinent 2. Mountains-- Appalachians pre separation, all others after making them ?American? mountains. 3. Canadian Shield- NE corner of Americas, maybe first above sea level 4. Ice Age- 2 million yrs. ago--2 mile thick ice, Canada, N. America 5. Glacial action eroded Canadian Shield II. Peopling the Americas 1. The Land Bridge-- Sea level dropped because of glaciers exposing a land bridge. ? ? Bering Sea between Siberia and Alaska 2. Nomadic hunters following migratory game herds 3. Ice Age ended, glaciers melted, land bridge under water--10,000 yrs. ago 4. When Europeans arrived in 1492-- 54 million people lived in the Americas.
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