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Earth History Weekly Notes

by: Vani Singh

Earth History Weekly Notes GEOL 1210

Vani Singh
GPA 3.5

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These notes will be covered on our next exam!
Earth History
Class Notes
Earth History
25 ?




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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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