DOI: 10.1016/j.palaeo.2014.07.026
论文题名: An early to mid-Pleistocene deep Arctic Ocean ostracode fauna with North Atlantic affinities
作者: DeNinno L.H. ; Cronin T.M. ; Rodriguez-Lazaro J. ; Brenner A.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 419, 期: 1 起始页码: 90
结束页码: 99
语种: 英语
英文关键词: Arctic ocean
; Mid-Brunhes Event
; Mid-Pleistocene transition
; Quaternary ostracodes
英文摘要: An early to middle Pleistocene ostracode fauna was discovered in sediment core P1-93-AR-23 (P23, 76.95°N, 155.07°W) from 951 meter water depth from the Northwind Ridge, western Arctic Ocean. Piston core P23 yielded more than 30,000 specimens and a total of about 30 species. Several early to mid-Pleistocene species in the genera Krithe, Echinocythereis, Pterygocythereis, and Arcacythere are now extinct in the Arctic and show taxonomic affinities to North Atlantic Ocean species. Our results suggest that there was a major ostracode faunal turnover during the global climate transitions known as the Mid-Pleistocene Transition (MPT, ~1.2 to 0.7 Ma) and the Mid-Brunhes Event (MBE, ~400 ka) reflecting the development of perennial sea ice during interglacial periods and large ice shelves during glacial periods over the last 400,000 years. © 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69092
Appears in Collections: 过去全球变化的重建
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作者单位: Eastern Geology and Paleoclimate Science Center, MS 926A, U.S. Geological Survey, Reston, VA, United States; Dept. Estratigrafia y Paleontologia, Facultad de Ciencia y Tecnologia, Univ. Pais Vasco, UPV/EHU, Apartado 644, Bilbao, Spain
Recommended Citation:
DeNinno L.H.,Cronin T.M.,Rodriguez-Lazaro J.,et al. An early to mid-Pleistocene deep Arctic Ocean ostracode fauna with North Atlantic affinities[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,419(1)