PMID: 9445472Feb 10, 1998Paper

Penny ice cap cores, baffin island, canada, and the wisconsinan foxe dome connection: two states of hudson bay ice cover

Science
D A FisherM Gerasimoff

Abstract

Ice cores from Penny Ice Cap, Baffin Island, Canada, provide continuous Holocene records of oxygen isotopic composition (delta18O, proxy for temperature) and atmospheric impurities. A time scale was established with the use of altered seasonal variations, some volcanic horizons, and the age for the end of the Wisconsin ice age determined from the GRIP and GISP2 ice cores. There is pre-Holocene ice near the bed. The change in delta18O since the last glacial maximum (LGM) is at least 12.5 per mil, compared with an expected value of 7 per mil, suggesting that LGM ice originated at the much higher elevations of the then existing Foxe Dome and Foxe Ridge of the Laurentide Ice Sheet. The LGM delta18O values suggest thick ice frozen to the bed of Hudson Bay.

References

Mar 1, 1992·Physical Review C: Nuclear Physics·S FlibotteG Zwartz

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Citations

May 20, 2014·The Science of the Total Environment·Christian ZdanowiczHolger Hintelmann
Apr 15, 2020·Scientific Data·Darrell KaufmanSnezhana Zhilich
Jul 12, 2017·Scientific Data·UNKNOWN PAGES2k Consortium
May 18, 2017·Proceedings of the National Academy of Sciences of the United States of America·Benoit S LecavalierArthur S Dyke
Sep 7, 2018·Scientific Reports·Denis LacelleRoxanne Frappier

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