Term
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Definition
| Narrow, deep ocean embayment partially filling a glacial trough |
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Term
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Definition
| A massive floating body of ice broken away from a glacier. Only about 10 percent of its mass is above the surface of the water |
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Term
| Details of Late Cenozoic Ice Age (p. 640) |
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Definition
a. Began 3 million years ago
b. Rapid de-glaciation process set in about 15,000 years ago
c. Maximum ice advance was reached 18,000 years ago
d. Last interglaciation started 140,000 ya and ended 110,000-120,000 ya |
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Term
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Definition
| Lakes formed along the ice front of a glacier |
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Term
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Definition
| A lake that experiences significant increase in depth and extent as a result of increased precipitation and reduced evaporation |
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Term
| Possible causes of Late Cenzoic Ice Age |
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Definition
a. A change in the placement of the continents
b. Increased volcanic activity
c. Reduction in solar energy output |
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Term
| Possible causes of glaciation cycles |
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Definition
| a. Astronomical Hypothesis: The timing of glaciations and interglaciations is determined by variations in insolation produced by minor cycles in the Earth’s orbit and the Earth’s axial rotation |
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Term
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Definition
| Large thick plate of glacial ice moving outward in all directions from a central region of accumulation |
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Term
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Definition
| Overall increase in climate temperature resulting in the melting of glaciers and ice sheets |
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