Glaciations of Northern Greenland By Anker Weidick' New Evidence
Summary: Field investigations on the Quaternary deposits of North Greenland are still sc arce end scattered, but a numb e r of pra-c-Iü.Oüu B. P, r adl ocarbon dates are reported. These favour a concept of a s m a ll Lale Wtsconsin/Würm extcnt of th e Inland Icc. In North-West Greenlancl a new dep o...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.453.5365 http://epic.awi.de/28057/1/Polarforsch1976_1_3.pdf |
| Summary: | Summary: Field investigations on the Quaternary deposits of North Greenland are still sc arce end scattered, but a numb e r of pra-c-Iü.Oüu B. P, r adl ocarbon dates are reported. These favour a concept of a s m a ll Lale Wtsconsin/Würm extcnt of th e Inland Icc. In North-West Greenlancl a new dep os i t in Olrik Fjord, only 160 km due west of Camp Century, is dated to 18.990 B. P. and demons trntes the possibility of a reduced Late Wtsconsm/Würm Inland Ice. though it cannot at p resen t be demons tr ated with certaint y that it was not overrtdden by a subsequent glacier readvance. The cantent of shells reveals cl im at i c condi ti on s elose to the p res ent on es, anel if the age determination is correct, th e contempornneous interstaclial of the Camp Century record (appraximately 28.000- 18.000 B. P.) has too smal! an amplitude. In North-Eas t Greenlancl, occurrence of driftwood aged at more th an 35.000 yenrs B. P. in th e central parts of Peary Land and high, pr esumebiv interstadial or interglacial, terrace levels in Independenc e Fjord is reported. The last glaciation (Late Wisconsin/Würm) of Peary Land was dominated by a Iocal glaciation cen te red over Frederick E. Hyde Fjord. Combining th i s information, an interstadial survlval of a loeal ice cap over Peary Land is envisaged. Zusammenfassung: Auch wenn Felduntersuchungen an Quartär-Ablagerungen in Nord-Cr önl and bisher nur |
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