| 1. | Much of the shelves were exposed during glacial periods and interglacial periods.
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| 2. | Wherever these areas were found, they became source populations during interglacial periods.
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| 3. | High contents correspond to warm interglacial periods, and low to glacial periods.
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| 4. | Interglacial periods correlate well with an intensification of the monsoon circulation.
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| 5. | That didn't even get us back into the last interglacial period.
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| 6. | Likewise, the muskox is known to have survived in Britain during warm interglacial periods.
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| 7. | The present interglacial period ( the Holocene ) has lasted about 11, 700 years.
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| 8. | During interglacial periods, this region has undergone varying degrees of wet and dry periods.
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| 9. | These consisting of glacial periods where conditions are colder than normal, separated by interglacial periods.
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| 10. | These climatic fluctuations were caused by the glacial and interglacial periods of the Northern Hemisphere.
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