Earth History Weekly Notes
Earth History Weekly Notes GEOL 1210
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This 1 page Class Notes was uploaded by Vani Singh on Sunday April 10, 2016. The Class Notes belongs to GEOL 1210 at University of North Carolina - Charlotte taught by in Spring 2016. Since its upload, it has received 16 views. For similar materials see Earth History in Earth Sciences at University of North Carolina - Charlotte.
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Date Created: 04/10/16
Earth History Early Life Chemosynthetic Organisms: inject sulfur into the atmosphere Places today that prove how Earth’s processes occurred at the beginning of the planet’s life, also organisms living in these places can prove that Yellowstone National Park: Archaea (first organisms & THEN chemosynthetic organisms evolved on Earth) Archean Life: Stromatolites: cyanobacteria (blue – green algae) 1 life (prokaryotes): 3.5 billion years ago Steranes: molecular fossils 2.7 billion years ago Chemicals that are part of eukaryotic cells (2.1 billion years ago) Organisms: CaCO3 (invertebrates) CaPO4 (bone) late Proterozoic Hard parts: store crucial elements & protect soft parts & anchorage structure for muscles & tissues defensive structure Archean cratons formed during collisions of island arcs and minicontinents during the period of the formation of Laurentia
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