@article {M.:September 2003:0300-9483:447, author = "M. SARNTHEIN", author = "S. VAN KREVELD", author = "H. ERLENKEUSER", author = "P. M. GROOTES", author = "M. KUCERA", author = "U. PFLAUMANN", author = "M. SCHULZ", title = "Centennial-to-millennial-scale periodicities of Holocene climate and sediment injections off the western Barents shelf, 75N", journal = "Boreas", volume = "32", year = "September 2003", abstract = "At the western continental margin of the Barents Sea, 75°N, hemipelagic sediments provide a record of Holocene climate change with a time resolution of 10-70 years. Planktic foraminifera counts reveal a very early Holocene thermal optimum 10.7-7.7 kyr BP, with summer sea surface temperatures (SST) of 8°C and a much enhanced West Spitsbergen Current. There was a short cooling between 8.8 and 8.2 kyr BP. In the middle and late Holocene summer, SST dropped to 2.5°-5.0°C, indicative of reduced Atlantic heat advection, except for two short warmings near 2.2 and 1.6 kyr BP. Distinct quasi-periodic spikes of coarse sediment fraction (with large portions of lithic grains, benthic and planktic foraminifera) record cascades of cold, dense winter water down the continental slope as a result of enhanced seasonal sea ice formation and storminess on the Barents shelf over the entire Holocene. The spikes primarily cluster near recurrence intervals of 400-650 and 1000-1350 years, when traced over the entire Holocene, but follow significant 885-/840- and 505-/605-year periodicities in the early Holocene. These non-stationary periodicities mimic the Greenland- 10 Be variability, which is a tracer of solar forcing. Further significant Holocene periodicities of 230, (145) and 93 years come close to the deVries and Gleissberg solar cycles.", pages = "447-461(15)", url = "http://www.ingentaconnect.com/content/tandf/sbor/2003/00000032/00000003/art00001" doi = "doi:10.1080/03009480310003351" }