Lacustrine evidence of early-Holocene environmental change in Northern Iceland: a multiproxy palaeoecology and stable isotope study
Langdon, P.G.; Leng, M.J.; Holmes, N.; Caseldine, C.J.. 2010 Lacustrine evidence of early-Holocene environmental change in Northern Iceland: a multiproxy palaeoecology and stable isotope study. The Holocene, 20 (2). 205-214. 10.1177/0959683609354301Full text not available from this repository. (Request a copy)
Early Holocene warming in Iceland caused rapid glacial ice melt which led to exposed landscapes on which soils developed and floras quickly established. Our records from northern Iceland suggest temperatures were up to 2-2.5°C warmer than present throughout the first two millennia post deglaciation (~10,500 to 8,500) on a background of soil and catchment development before catchment conditions started to stabilise. The warming trend over this period was not uniform however, but punctuated by a series of relatively short lived climatic events. Specifically inwash events are suggested by the δ13Corganic, %TOC and C/N data around 9600 cal BP and 8250 cal BP and are correlated by two independent sites. There is also evidence from the δ18Ocarbonate and δ13Ccarbonate records which suggests that progressive evaporation of the lakes in the region occurred from ~8200 cal BP, the timing of which accords well with other isotopic records of drier conditions from around the North Atlantic.
|Programmes:||BGS Programmes 2010 > NERC Isotope Geoscience Laboratory|
|NORA Subject Terms:||Ecology and Environment|
|Date made live:||03 Mar 2010 16:46|
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