| Autor: |
Bandy, Orville L., Butler, E. Ann, Wright, Ramil C. |
| Zdroj: |
Science; October 1969, Vol. 166 Issue: 3905 p607-609, 3p |
| Abstrakt: |
In southeastern Alaska the first marine evidence of widespread glaciation occurs in Miocene sections near the base of the Yakataga Formation. An associated temperature decrease of about 10°C is indicated by the influx of an upper Miocene cold-water planktonic foraminifer, Turborotalia pachyderma, an event that occurred about 13 million years ago. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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