Biochemical Sedimentary Rocks

Source/Author: David McConnell, Jennifer Wiggen
Subject: Biochemical Sedimentary Rocks
Description: This mini-video describes how biochemical sedimentary rocks are formed by the actions of organisms or as these organisms die and collect on the sea floor. We discuss how shellfish get their shells, what a coccolithophore is and how it takes billions of them to form the iconic chalk cliffs along the English channel, and how million year old trees went to make up the coal we burn today to generate electricity.
Duration: 2:31
Comments:
URL: https://youtu.be/m4irAvomF9g

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