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Minerals and Rocks of the Earth's Crust (The geologic time scale…
Minerals and Rocks of the Earth's Crust
Sediments and Sedimentary Rocks
Types of sedimentary rocks:
Clastic:
from mechanical weathering debris
Sandstone
Shale
Chemical
: from when dissolved materials precipitate from solution
Rock salt
Iron ore
Organic
: from the accumulation of plant or animal debris
Coal
Petroleum
Peat
Formed by the accumulation of sediment
Metamorphic Rocks
How it is formed?
Preexisting rocks exposed to intense
heat
and
pressure
Rock structure and chemical composition is changed
Metamorphic rocks types
Slate
Schist
Quartzite
Marble
Gneis
The cycle of rock change
Metamorphic rocks
Melting
Magma
cools down and solidifies
Intrusive igneous rocks
Metamorphism
Metamorphic rocks
Pouring onto the surface and cooling
Extrusive igneous rocks
Disintegration, decomposition, deposition
Sediment
Burial and lithification
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The geologic time scale
Cenozoic
(65.5 mya to present)
Paleogene (65.5 to 23.03 mya)
Oligocene (33.9 to 23.03 mya)
Eocene (55.8 to 33.9 mya)
Paleocene (65.5 to 55.8 mya)
Neogene (23.03 to 2.588 mya)
Pliocene (5.332 to 2.588 mya)
Miocene (23.03 to 5.332 mya)
Quaternary (2.588 mya to present)
Holocene (11,700 yrs to present)
Pleistocene (2.588 mya to 11,700 yrs)
Hadean
(4600 to 400 mya)
Archean
(4000 to 2500 mya)
Neoarchean (2800 to 2500 mya)
Mesoarchean (3200 to 2800 mya)
Paleoarchean (3600 to 3200 mya)
Eoarchean (4600 to 3600 mya)
Proterozoic
(2500 to 542.0 mya)
Neoproterozoic (1000 to 542.0 mya)
Mesoproterozoic (1600 to 1000 mya)
Paleoproterozoic (2500 to 1600 mya)
Paleozoic
(542.0 to 251.0 mya)
Cambrian (542.0 to 488.3 mya)
Furongian (499 to 488.3 mya)
Series 3 (510 to 499 mya)
Series 2 (521 to 510 mya)
Terreneuvian (542.0 to 521 mya)
Ordovician ( 488.3 to 443.7 mya)
Silurian (443.7 to 416.0 mya)
Devonian (416 to 359.2 mya)
Carboniferous (359.2 to 299.0 mya)
Permian (299.0 to 251.0 mya)
Lopingian (260.4 to 251.0 mya)
Guadalupian (270.6 to 260.4 mya)
Cisuralian (299.0 to 270.6 mya)
Mesozoic
(251.0 to 65.5 mya)
Triassic (251.0 to 199.6 mya)
Upper ( 228.7 to 199.6 mya)
Middle ( 245.9 to 228.7 mya)
Lower 251.0 to 245.9 mya)
Jurassic (199.6 to 145.5 mya)
Upper (161.2 to 145.5 mya)
Middle (175.6 to 161.2 mya)
Lower (199.6 to 175.6 mya)
Cretaceous (145.5 to 65.5 mya)
Upper (99.6 to 65.5 mya)
Lower (145.5 to 99.6 mya)
