Exam 16: Cenozoic Earth History the Paleogene and Neogene Periods

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Discuss the geological resources of the Eocene Green River Formation and how they formed.

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The Green River is well-known for fossils, and also contains huge quantities of oil shale. It is estimated that up to 80 billion barrels of oil are contained within the shales. The evaporite mineral, trona, is currently mined there.

The Alpine orogeny was caused by the collision of ____.

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What type of continental margin is presently represented by the eastern edge of North America? How did it form? What types of sedimentation is this margin experiencing?

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The eastern edge of North America is a passive margin. It formed when Africa rifted away from North America as Pangaea broke apart. Sediments include nearshore sands, shales further offshore, and carbonates even further offshore.

Discuss the Alpine orogeny.

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Placer gold deposits were accumulated by stream processes.

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The present-day formation of the Himalayas is most like the formation of the ____ in the Late Paleozoic.

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In the Cenozoic, the western margin of North America ____.

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What is an example of a continental-continental convergent plate margin?

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Sedimentary facies of the Gulf Coastal plain developed primarily in response to ____.

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The Alpine orogeny resulted in the formation of which mountains?

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Oil shale is a rock that contains clay particles, carbonate minerals, and kerogen.

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Because it is a pluton, Devils Tower is a(n) ____________________ rock.

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One possible reason for present-day geothermal activity at Yellowstone National Park and the extensive flood basalts of the Columbia River plateau is ____.

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The present-day distribution of oceans and continents is due to ____.

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At one point, India was moving at 15-20 cm/year. This is well within the average rate of movement for a tectonic plate.

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The Cascade Range is related to ____.

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The Atlantic continental margin is presently a(n) ____________________ margin.

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With the exceptions of Alaska and Hawaii, the United States has no active volcanoes.

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During rifting, crust becomes stretched and thinned.

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Which plate is a remnant of the Farallon plate?

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