Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History.

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Presentation transcript:

Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History

Image Grand Prismatic Pool, Yellowstone National Park

Image Modern stromatolites, Bahamas

Image 16.3 Cambrian stromatolites

Ancient stromatolites form columns. Modern stromatolites grow in the intertidal zone. A cross section reveals layering similar to that seen in ancient stromatolites. Microbes live on the surface of the stromatolite. Sediment is deposited on the microbes,......which grow upward through the sediment, forming a new layer. Image Building microbial mats (stromatolites)

Image Ediacaran embryo

Image Ediacaran ecosystem

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