Exam 11: Late Paleozoic Earth History

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The primary disadvantage of fracking is the ____.

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Worldwide cyclothem activity in the late Paleozoic was likely a consequence of glacial and interglacial cycles on Gondwana.

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Discuss the sources and formation of Late Paleozoic minerals. How are these resources used?

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Late Paleozoic mineral resources include bituminous and anthracite coal, petroleum, evaporites, limestone, and quartz sand. Coal deposits formed in abundant swamps during the Carboniferous and Permian. Petroleum resources were also formed in basins like the Michigan Basin. Evaporite deposits include gypsum for sheetrock and limestone for cement. Evaporites are common in arid environements An example of evaporite is the Zechstein evaporites of Europe. Metallic resources, such as tin, copper, gold, and silver, form during deformation of mountain building. Much of Quartz sand comes from east of the Mississippi as fluvial deposits, and is important for the production of glass.

The sedimentary environment from which coal most commonly is derived is ____.

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The two techniques that are most commonly used to mine coal are ____________________ and ____________________.

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Devonian barrier-reef complexes were associated with evaporite deposition in the back reef platform.

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Describe the formation of coal deposits. What environmental conditions are required to produce these deposits? Why is coal important?

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The Ancestral Rockies formed via continental-continental collision along the western margin of North America.

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The Iapetus could be considered the proto-Pacific Ocean.

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A small lithospheric block with characteristics quite different from those of surrounding rocks is a ____.

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The mountain building event associated with intracratonic uplift in western North America during the Late Paleozoic produced the ____________________.

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With movement of Gondwana over the South Pole, extensive glaciation occurred during the ____.

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Throughout the Late Paleozoic, Gondwana was located ____.

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Continental Permian sediments indicate that Pangaea can best be characterized as a ____.

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Economic mineral deposits of ____ are common in Carboniferous and Permian strata in the northeastern part of the U.S., where they formed as organic sediments (i.e., the remains of plants) deposited in wetland environments west of the Appalachian Mountains.

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Laurentia and Baltica collided to form Laurasia during the Late Paleozoic.

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The coal deposits of Siberia were probably derived from plants that grew in arctic climates.

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The climate over much of Pangaea was ____.

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Cyclothems are the same as sequences.

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Deltas prograde, or grow, when sea level regresses.

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