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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Reconstructing the ancient arrangement of the continents requires paleomagnetic paleoclimatic geochronologic tectonic sedimentologic biogeographic fossil data.
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleomagnetic data
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleomagnetic data
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleomagnetic data
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleomagnetic data
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleomagnetic data Paleomagnetic evidence provides information on the latitude at which the rocks formed. The orientation of the continent can be determined from the direction to the paleomagnetic pole, as recorded by bits of iron in the rock. Longitudes, however, cannot be determined (which accounts for some of the differences in the paleogeographic reconstructions).
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleoclimatic data Using rock types paleoclimate can be determined
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleoclimatic data Paleoclimatic evidence comes from environmentally- sensitive sedimentary rock types: Glacial deposits
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleoclimatic data Paleoclimatic evidence comes from environmentally- sensitive sedimentary rock types: Coal swamp deposits
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleoclimatic data Paleoclimatic evidence comes from environmentally- sensitive sedimentary rock types: Reef carbonates
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleoclimatic data Paleoclimatic evidence comes from environmentally- sensitive sedimentary rock types: Evaporites
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Paleoclimatic data Paleoclimatic evidence comes from environmentally- sensitive sedimentary rock types: Evaporites
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EARLY PALEOZOIC EVENTS
PALEOGEOGRAPHY Ice House vs. Hot House
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LATE NEOPROTEROZOIC PALEOGEOGRAPHY Gondwanaland Laurentia Baltica Siberia
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EARLY PALEOZOIC EVENTS
LATE NEOPROTEROZOIC PALEOGEOGRAPHY
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EARLY PALEOZOIC EVENTS
LATE NEOPROTEROZOIC PALEOGEOGRAPHY Late Proterozoic Glaciation (Ice House)
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EARLY PALEOZOIC EVENTS
CAMBRIAN PALEOGEOGRAPHY Cambrian named after Cambria, latin for Wales named by Adam Sedgewick (1830’s)
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EARLY PALEOZOIC EVENTS
CAMBRIAN PALEOGEOGRAPHY Continents have moved off poles Glaciers have melted Sea level rising Epeiric seas begin to develop
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EARLY PALEOZOIC EVENTS
CAMBRIAN PALEOGEOGRAPHY Global temperatures warm Formation of Iapetus Ocean (proto-Atlantic) Ouachita Trough begins to develop Ouachita Trough
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EARLY PALEOZOIC EVENTS
CAMBRIAN PALEOGEOGRAPHY Early Cambrian
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EARLY PALEOZOIC EVENTS
CAMBRIAN PALEOGEOGRAPHY Early Cambrian Shallow seas cover many continents Evaporite rocks deposited near equator
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EARLY PALEOZOIC EVENTS
CAMBRIAN PALEOGEOGRAPHY Development of a shallow epeiric or epicontinental sea Continent situated on the equator, so waters most likely warm Significant carbonate deposits accumulate Deep water sediments (shales) are accumulating on margins
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