Intro Historical Geology 2

Intro Historical Geology 2 - Introduction Time scale Time...

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1 Introduction Time scale Time scale This is the version that you will be quizzed on. Taxonomic classification kingdoms
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2 Factors for fossilization Rapid burial is the best way for successful fossilization. Most often occur in shallow water with high energy environments. Rarely occurs on land. Types of fossilization Unaltered Remains Permineralization Recrystallization Dissolution/Mold Impression Carbonization Unaltered remains Very rare. Found in glaciated regions and regions like the LaBrea tarpits. Baby Lyuba Permineralization Original pore spaces are permeated with groundwater. Minerals precipitate out and fill in the pore spaces, cementing the organic matter into rock. Cell structure can be preserved! Recrystallization One mineral changes into another. Calcite to aragonite. Both CaCO 3
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3 Dissolution & Replacement Water seeping through sediments. Original material dissolves.
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