TOPIC 3 - TOPIC 3 Tombs of Dinosaurs: Sedimentary Rocks...

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TOPIC 3 – Tombs of Dinosaurs: Sedimentary Rocks Introduction Sedimentary rocks begin as the weathered products of existing rocks. These weathered products are transported by wind, water, and ice. Fossils are preserved in sedimentary rocks. How Sediments Are Turned Into Rock Lithification – the process that converts unconsolidated sediments (mud) into sedimentary rocks Compaction – an important process in lithification causing a reduction in the pore space between unconsolidated grains in the sediments Lithostatic pressure – the pressure resulting from the weight of the overlying rocks Cementation – the process of binding the grains together where minerals are precipitated in the pore spaces DESCRIPTION AND CLASSIFICATION OF SEDIMENTARY ROCKS 2 types of sedimentary rocks: detrital and chemical Detrital sedimentary rocks are formed from the accumulation of minerals and rock fragments eroded from preexisting rocks or their weathered byproducts. Chemical sedimentary rocks form from the organic or inorganic
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This note was uploaded on 07/16/2008 for the course GLY 1102 taught by Professor Ciesielski during the Summer '08 term at University of Florida.

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TOPIC 3 - TOPIC 3 Tombs of Dinosaurs: Sedimentary Rocks...

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