'Proterozoic' diaporamas de présentation

Chapter 9

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GY 112: Earth History

GY 112: Earth History. Proterozoic Fossils. Agenda. Key Events of the Proterozoic Proterozoic Plate Tectonics Proterozoic Glaciation Background Proterozoic Life Forms Evidence of Proterozoic Life Factors Affecting Development of Proterozoic Life Implications of Proterozoic Info.

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The Proterozoic Eon

The Proterozoic Eon. CHAPTER 7. Proterozoic- Last chapter of Precambrian time. The Proterozoic boundary is placed @ 2.5 By, mostly arbitrarily Essentially modern plate tectonic activity Archean cratons provide basis for continental development and attachment (accretion)

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What is the answer to Life, the Universe and Everything?

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The Proterozoic

The Proterozoic. Sub Divisions . Neoproterozoic 1.0-0.544 b.y Mesoproterozoic 1.6- 1b.y. Paleoproterozoic 2.5-1.6 b.y. Laurentia: Proterozoic N. America. Six Elements Superior Slave Hearne Rae Wyoming Nain. Laurentia: Proterozoic N. America.

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Cambrian Explosion

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Recap of Archean Proterozoic life

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THE PRIMORDIAL EARTH Hadean and Archean Eons Evolution of Early Life

THE PRIMORDIAL EARTH Hadean and Archean Eons Evolution of Early Life. Most likely anaerobic bacteria Were heterotrophs consumed simple organic compounds energy produced by fermentation (CO 2 and alcohol). THE PRIMORDIAL EARTH Hadean and Archean Eons Evolution of Early Life.

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Chasing Precambrian Paleo-redox

PHANEROZOIC. NEOPROTEROZOIC. MESOPROTEROZOIC. Chasing Precambrian Paleo-redox. PROTEROZOIC. PALEOPROTEROZOIC. Yanan Shen Harvard University. ARCHEAN. HADEAN. OUTLINE. I: Sulfate Reduction and S-isotopic Fractionation II: Archean Ocean Chemistryand Atmosphere

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Late Cenozoic Geology

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Chapter 9

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Proterozoic accretionary belts of the Amazonian Craton

Proterozoic accretionary belts of the Amazonian Craton. Umberto G. Cordani Institute of Geosciences University of Sao Paulo, Brazil. TECTONIC EVOLUTION OF THE AMAZONIAN CRATON IN THE PROTEROZOIC.

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Proterozoic

Proterozoic. Neoproterozoic 1 -0.545 bybp Mesoproterozoic 1.6-1 by Paleoproterozoic 2.5- 1.6bybp. How is the Proterozoic different from the Archean?.

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Lecture 2: Origin of complexity

Lecture 2: Origin of complexity. 1. Eukaryotes What are they? When do they evolve? When do they diversify? Evolution and the atmosphere 2. Metazoans What are they? Phylogenetic tree Evolution and preservation 3. The Ediacaran fauna 4. The appearance of hard parts

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Ozone

Ozone. Relationship between changes in oxygen concentration and the development of the ozone layer. 3500mya Cyanobacteria (photosynthetic) began producing molecular oxygen. Cyanobacteria. = Oxygen.

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