A9R18EC.tmp 3 - Mississippian 360 Devonian 408 Silurian 438...

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Prof. M. Fall - University of Ottawa 3 The Earth Distance from the Sun : 149.6 millions of km Inclination of the rotation axis : 23.5 ° Inclination of the orbit : 23 ° 00' Diameter : 12730 km Mass : 6.10 24 kg Density : 5.5 Atmosphere: 78.09 % of azote, 20.95 % of oxygen, 0.93 % of argon, 0.03 % of CO2 2.1 The Earth: origin and history (6) Age of the Earth The oldest rocks of the Earth: 4.2 billions of years Age estimation based on meteorites The earth is 4.56 billions of years old 2.1 The Earth: origin and history (7) Eon Era Period Epoch Age (Ma) Holocene 0.01 Pleistocene 1.6 Pliocene 5.3 Miocene 23.7 Oligocene 36.6 Eocene 57.8 Paleocene 66.4 Cretaceous 144 Jurassic 208 Triassic 245 Permian 286 Pennsylvanian 320
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Unformatted text preview: Mississippian 360 Devonian 408 Silurian 438 Ordovician 505 Cambrian 570 Proterozoic 2500 Achaean 3900 Hadean 4550 Phanerozoic Cenozoic Quaternary Tertiary Mesozoic Paleozoic extinction The Geologic Time Scale Its history 2.1 The Earth: origin and history (8) 2.1 The Earth: origin and history 2.2 Earth Structure and dynamic 2.3 The Earth’s crust: its main components Plan 2. The Earth What is it inside the Earth? 2.2 Earth structure and dynamic Which movements drive it? 2. The Earth The Earth What is it inside the Earth? Which movements drive it? 2.2 Earth structure and dynamic 2.2 Structure of the Earth (1) Let’s cut to look inside!...
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This note was uploaded on 03/21/2011 for the course GNG 4124 taught by Professor Soils during the Spring '11 term at Uni. of Nottingham Ningbo.

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