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10 Cards in this Set
- Front
- Back
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In which of the following environments would you expect to find lithogenous sediment?
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*At the base of the continental slope
*A muddy Lagoon *A sandy beach |
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Of the following environments, where would you expect to find large amounts of lithogenous sediment?
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*near an active continental margin that has big rivers that drain mountanous areas
*in deep marine trenches close to land *near a passive continental margin that has big rivers that drain mountainous areas |
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Of the following environments, in which one(s) would lithogenous sediment be found?
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*deep-ocean trenches
*abyssal plains *continental rises *continental slopes *continental shelves |
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Which of the following conditions allows for calcareous ooze to be found beneath the CCD?
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To have it accumulate above the CCD, then have it covered before being transported to deeper depths by sea floor spreading.
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Which of the following are microscopic, single-celled floating algae that accumulate to form biogenous sediment?
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*diatoms
*coccolithophores |
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Which of the following organisms are responsible for the creation of siliceous ooze?
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*diatoms
*radiolarians |
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Of the following sediments, which one(s) is/are considered biogenous?
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*radiolarian ooze
*tests of foraminifers |
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Of the following sediments, which one(s) is/are considered hydrogenous?
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*manganese nodules
*coatings of metal sulfides near black smokers |
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Of the following statements about surface water temperature above biogenous sea floor deposits, which is/are true?
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*Siliceous ooze on the sea floor indicates cool surface water above.
*Calcareous ooze on the sea floor indicates warm surface water above. |
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Marine sediments provide valuable clues about which of the following Earth history events?
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*the climate on Earth millions of years ago
*past catastrophes such as major extinction events *previous ocean circulation patterns *movement of the ocean floor *the ancient geographical locations of ocean basins |
