Holocene palaeoecology of southwest Greenland inferred from macrofossils in sediments of an oligosaline lake |
| |
| Authors: | Ole Bennike N John Anderson Suzanne McGowan |
| |
| Institution: | 1.Geological Survey of Denmark and Greenland,Copenhagen K,Denmark;2.Department of Geography,Loughborough University,Loughborough,UK;3.School of Geography,University of Nottingham,Nottingham,UK |
| |
| Abstract: | We retrieved a lake sediment record from an oligosaline, meromictic lake in southwest Greenland. The record spans the last
8,200 cal. years and was radiocarbon dated and analysed for macroscopic remains of plants and animals. The record extends
the known history of several invertebrate species back in time, and provides minimum ages for their immigration to Greenland
after the last deglaciation. Shells of the ostracod Ilyocypris bradyi were found in sediments dated to the time interval c. 7,000–6,500 cal. years BP. Shells of this species were found previously in a nearby oligosaline lake, where its occurrence
was dated to about the same short time interval. The species is a thermophilous, non-arctic taxon that is absent from the
present day Greenland fauna, and we suggest that its former occurrence in west Greenland marks the peak of the Holocene thermal
maximum. This is in agreement with other records from Greenland. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
