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

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Page 1: Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History

Ge 101. Introduction to Geology and Geochemistry

Lecture 16. Narratives from Geologic Maps; Introduction to

Earth History

Page 2: Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History

Image 16.1. Grand Prismatic Pool, Yellowstone National Park

Page 3: Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History

Image 16.2. Modern stromatolites, Bahamas

Page 4: Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History

Image 16.3 Cambrian stromatolites

Page 5: Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History

Ancient stromatolitesform columns.

Modern stromatolitesgrow in the intertidal zone.

A cross section reveals layering similar to that seenin ancient stromatolites.

Microbes live on thesurface of the stromatolite.

Sediment is depositedon the microbes,...

...which grow upward through the sediment, forming a new layer.

Image 16.3. Building microbial mats (stromatolites)

Page 6: Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History

Image 16.5. Ediacaran embryo

Page 7: Ge 101. Introduction to Geology and Geochemistry Lecture 16. Narratives from Geologic Maps; Introduction to Earth History

Image 16.6. Ediacaran ecosystem