Sedimentary Rock Lab - JCC Geology 111 Chapter 7 Sedimentary Rocks Zimmerman Sedimentary Rock Lab Introduction As you now know rocks are composed of

Sedimentary Rock Lab - JCC Geology 111 Chapter 7...

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JCC – Geology 111 Zimmerman Chapter 7: Sedimentary Rocks Sedimentary Rock Lab Introduction: As you now know, rocks are composed of minerals or a combination of minerals. Rocks are categorized into types based on the way in which they form. Sedimentary rocks form as weathered, eroded and deposited materials are compacted and cemented together beneath the weight of overlying sediments. Sedimentary rocks are classified into three major categories based on their composition- CLASTIC , or fragmental (derived from weathering and erosion of land materials), CRYSTALLINE (form from precipitation of dissolved salts in sea water) and BIOCLASTIC (fragments of living organisms). The clastic sedimentary rocks are identified and named by grain size, while the others are identified by composition. These characteristics, in turn, signify a particular environment of formation. As you know from our study of igneous rocks, if you know the rock, you know the past environment! Using your senses and the Scheme for Sedimentary Rock Identification, you will be able to first classify and identify the rocks and their environments of formation. Objective: In this investigation you will learn how to identify and classify various kinds of sedimentary rocks. Materials: -sedimentary rock specimens -hand lens -Earth Science Reference Tables WEB Resource - .
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  • Fall '16
  • Wanda Roberts
  • Sedimentary rocks

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