Historical Geology Lecture 14 Events of the Early Paleozoic Era.

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Presentation transcript:

Historical Geology Lecture 14 Events of the Early Paleozoic Era

Historical Geology IPaleozoic Timeline IIEarly Paleozoic Paleogeography IIIContinental Framework A)Epeiric Seas and Cratonic Sequences B)Arches C)Domes and Basins D)Mobile Belts IVThe Cambrian Period A)Paleogeography and Lithofacies B)Sauk Sequence C)Appalachian (Southern) Margin D)Cordilleran (Northern) Margin VThe Ordovician Period A)Paleogeography and Lithofacies B)Tippecanoe Sequence C)Appalachian (Southern) Margin D)Cordilleran (Northern) Margin Outline

Historical Geology The End of the Proterozoic

Historical Geology The Early Paleozoic Era

Historical Geology Early Paleozoic Era Paleogeography Ron Blakey

Historical Geology Early Paleozoic Era Continental Framework Epeiric Seas Cratonic Sequences Arches Domes Basins Mobile Belts

Historical Geology Cratonic Sequences

Historical Geology Transcontinental Arch

Historical Geology Domes and Basins

Historical Geology Domes and Basins Sediment Thicknesses

Historical Geology Mobile Belts

Historical Geology The Cambrian Period Ron Blakey The Proterozoic-Cambrian boundary GSSP: The Fortune Head section near Fortune, southeastern Newfoundland. Exposed are rocks of the Chapel Island Formation, members 1 and 2. Copyright © G. Geyer, 1997

Historical Geology Cambrian Laurentia

Historical Geology Cambrian Laurentia Sauk Transgression Grand Canyon Sequence Cordilleran (Northern) Margin Passive Margin Rift Sedimentation Siberian Microcontinent Appalachian (Southern) Margin Rifting in Iapetus Ocean Conversion to Active Margin Chopawamsic Orogeny Ron Blakey

Historical Geology Cambrian Laurentia Paleogeography and Lithofacies

Historical Geology Cambrian Laurentia The Sauk Transgression

Historical Geology Sauk Transgression Sediment Thickness

Historical Geology Sauk Transgression Typical Transgressive Sequence Grand Canyon Sequence (from bottom) Tapeat Sandstone Bright Angel Shale Muav Limestone unconformity

Historical Geology Cambrian Laurentia Appalachian Margin

Historical Geology Cambrian Laurentia Appalachian Margin – Virginia

Historical Geology Cambrian Laurentia Cordilleran Margin Passive Margin Siberian Microcontinent Rift Sedimentation Ron Blakey

Historical Geology Cambrian Laurentia Passive Cordilleran Margin

Historical Geology Cambrian Laurentia Western Margin - Siberian Microcontinent

Historical Geology The Ordovician Period Ron Blakey

Historical Geology Ordovician Laurentia

Historical Geology Ordovician Laurentia Tippecanoe Transgression St. Peter's Sandstone Cordilleran (Northern) Margin Conversion to Active Margin Deep Water Sedimentation Appalachian (Southern) Margin Taconic Orogeny Appalachian Basin Sedimentation Queenston Clastic Wedge Ron Blakey

Historical Geology Ordovician Laurentia Paleogeography and Lithofacies

Historical Geology Ordovician Laurentia Tippecanoe Transgression

Historical Geology Ordovician Laurentia St Peters Sandstone

Historical Geology Ordovician Laurentia Appalachian Margin Taconic Orogeny Appalachian Basin Sedimentation Queenston Clastic Wedge

Historical Geology Ordovician Laurentia Appalachian Margin - Taconic Orogeny Ettensohn and Brett, 2002

Historical Geology Ordovician Laurentia Appalachian Margin - Taconic Orogeny Ron Blakey

Historical Geology Ordovician Laurentia Appalachian Margin – Appalachian Basin Ettensohn and Brett, 2002

Historical Geology Ordovician Laurentia Appalachian Margin – Queenston Clastic Wedge

Historical Geology Ordovician Laurentia Cordilleran Margin Conversion to Active Margin Deep Marine Sedimentation Ron Blakey

Historical Geology Ordovician Laurentia Cordilleran Margin