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Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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95 23 Some Important Events in Earth's History Event # Date in years before present Event 4.56 billion Earth forms 4.4 billion Oldest mineral grain found Oldest piece of rock ever 3. 4.1 billion found 4 3.9 billion Oldest evidence of a continent 3.8 billion First evidence of life First fossils (algae and bacteria) Free oxygen in atmosphere First fossil of a complex 3.5 billion 7. 1.8 billion 8. 1.1 billion organism (a worm) First abundat life found in the 540 million 9. rock record 460 million First fish 10 440 million First land plants 11
Transcribed Image Text:95 23 Some Important Events in Earth's History Event # Date in years before present Event 4.56 billion Earth forms 4.4 billion Oldest mineral grain found Oldest piece of rock ever 3. 4.1 billion found 4 3.9 billion Oldest evidence of a continent 3.8 billion First evidence of life First fossils (algae and bacteria) Free oxygen in atmosphere First fossil of a complex 3.5 billion 7. 1.8 billion 8. 1.1 billion organism (a worm) First abundat life found in the 540 million 9. rock record 460 million First fish 10 440 million First land plants 11
12 First land animals 410 milion Largest mass extinction occurs First dinosaurs 13 250 million 14 247 million 15 240 million First mammals Breakup of supercontinent Pangaea begins First flowering plants 16 220 million 17 145 million 18 65 million Dinosaurs went extinct 19 30 million Mammals/ flowering plants become abundant 20 5 million Beginning of Cascade volcanic arc 21 1.8 million First primate in genus Homo Data/Observations:
Transcribed Image Text:12 First land animals 410 milion Largest mass extinction occurs First dinosaurs 13 250 million 14 247 million 15 240 million First mammals Breakup of supercontinent Pangaea begins First flowering plants 16 220 million 17 145 million 18 65 million Dinosaurs went extinct 19 30 million Mammals/ flowering plants become abundant 20 5 million Beginning of Cascade volcanic arc 21 1.8 million First primate in genus Homo Data/Observations:
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