PALEOZOIC Ch 10 & 11.

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Presentation transcript:

PALEOZOIC Ch 10 & 11

AGENDA Geologic Time (7 Periods) Plate Tectonics – “Driving Force” Geography/Landforms Mountains, Rock Formations Appalachian Mountains Climate Change Sea Level Changes Ice Ages Animal/Plant Evolution Animal/Plant Extinction

Geologic Time

Plate Tectonics

Geological Supercontinents Vaalbara: Oldest, Formed 3.6 bya Ur: Formed 3.0 bya Nena: Formed 1.8 bya Kenorland: Formed 2.7 bya Columbia: Formed 2.1 bya Rodinia: Formed 1.1 bya Pannotia: Formed 0.6 bya, broke up 0.54 bya Pangea: Formed 0.200 bya

Rodinia Breakup Rodinia Breakup (Neoproterozoic) producing 6 large continents: Laurentia (N. America, Greenland, NW Ireland & Scotland) Baltica (Russia & N. Europe) Kazakhstania (Bet. Caspian Sea & China) Siberia (Russia) China (China, Indochina, & Malay) Gondwana (S. America, Africa, India, Australia, & Antarctica) Movements/interactions of these continents responsible for creation of landforms and evolution of lifeforms.

NEOPROTEROZOIC Laurentia (N. America, Greenland, NW Ireland & Scotland) Baltica (Russia & N. Europe) Kazakhstania (Bet. Caspian Sea & China) Siberia (Russia) China (China, Indochina, & Malay) Gondwana (S. America, Africa, India, Australia, & Antarctica)

CAMBRIAN f10_04_pg271 f10_04_pg271.jpg f10_04_pg271

ORDOVICIAN f10_25_pg287 f10_25_pg287.jpg f10_25_pg287

SILURIAN f10_28_pg289 f10_28_pg289.jpg f10_28_pg289

DEVONIAN f11_04_pg299 f11_04_pg299.jpg f11_04_pg299

MISSISSIPPIAN f11_08_pg302 f11_08_pg302.jpg f11_08_pg302

Mississippian/Pennsylvanian Periods f11_38_pg321 f11_38_pg321.jpg f11_38_pg321

PENNSYLVANIAN f11_10_pg304 f11_10_pg304.jpg f11_10_pg304

PERMIAN f11_17_pg307 f11_17_pg307.jpg f11_17_pg307

Consequence of Plate Tectonics

Mountain Building Episodes

f11_32_pg318 f11_32_pg318.jpg f11_32_pg318

Review Craton: The stable interior of a continent. 2 components of a Craton: Shield: Large area of exposed crystalline rocks. Platforms: Areas surrounding the shields containing flat-lying sedimentary layers.

Four Orogenic Belts West – Cordilleran North – Franklinian Northeast – Caledonian/Acadian East - Appalachian

f10_07_pg273 f10_07_pg273.jpg f10_07_pg273

Mountain Building (Orogenic) Episodes Break-up of Rodinia (Proterozoic) 7 Continents Iapetus Ocean Formation (Cambrian) Taconic Orogeny (Ordovician) Iapetus Ocean Narrowing, 1st Appalachian Episode Cordilleran Orogeny (Ordovician – Silurian) Rocky Mtns Caledonian Orogeny (Mid Sil. Mid Dev.) Laurasia Formed (N. America/Europe) Acadian (Mid Sil. Mid Dev.) Closing of Iapetus Ocean, 2nd Appalachian Episode Alleghenian Orogeny (MS – Perm) Final Appalachian Episode Ouachita Orogeny (Early Dev – Late MS)

Appalachian Mountains

f11_19_pg310 f11_19_pg310.jpg f11_19_pg310

U.S. PHYSIOGRAPHIC REGIONS

United States Physiographic Regions Physiographic regions are based on landscape features, which are mostly controlled by the geology of the regions.

Alabama Physiographic Regions

Sea Level Changes Epicontinental Seas “Transgressive/Regressive Sequences”

f11_19_pg310 f11_19_pg310.jpg f11_19_pg310

Transgressive/Regressive Sequences Sauk (Cambrian – Ordovician) Tippecanoe (Ordovician – Silurian) Kaskaskia (Silurian – Mississippian) Absaroka (Pennsylvanian – Triassic)

Causes of Sea Level Changes

Evidence of Sea Level Changes

Paleozoic Summary

t10_01_pg274 t10_01_pg274.jpg t10_01_pg274

THE END