DOI: 10.1016/j.quascirev.2016.07.004
Scopus记录号: 2-s2.0-84979781077
论文题名: Calcareous microfossil-based orbital cyclostratigraphy in the Arctic Ocean
作者: Marzen R.E. ; DeNinno L.H. ; Cronin T.M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2016
卷: 149 起始页码: 109
结束页码: 121
语种: 英语
英文关键词: Arctic
; Orbital cycles
; Paleo-productivity
Scopus关键词: Glacial geology
; Productivity
; Sea ice
; Sea level
; Submarine geology
; Arctic
; Biological productivity
; Climatic oscillations
; Geochemical proxies
; Interglacial cycles
; Marine productivity
; Orbital cycles
; Sea-level oscillations
; Ice
; benthic foraminifera
; biological production
; cryosphere
; cyclostratigraphy
; glacial-interglacial cycle
; marine sediment
; microfossil
; ostracod
; paleoceanography
; paleoclimate
; paleoenvironment
; proxy climate record
; sea ice
; Arctic Ocean
; Ostracoda
英文摘要: Microfaunal and geochemical proxies from marine sediment records from central Arctic Ocean (CAO) submarine ridges suggest a close relationship over the last 550 thousand years (kyr) between orbital-scale climatic oscillations, sea-ice cover, marine biological productivity and other parameters. Multiple paleoclimate proxies record glacial to interglacial cycles. To understand the climate-cryosphere-productivity relationship, we examined the cyclostratigraphy of calcareous microfossils and constructed a composite Arctic Paleoclimate Index (API) “stack” from benthic foraminiferal and ostracode density from 14 sediment cores. Following the hypothesis that API is driven mainly by changes in sea-ice related productivity, the API stack shows the Arctic experienced a series of highly productive interglacials and interstadials every ∼20 kyr. These periods signify minimal ice shelf and sea-ice cover and maximum marine productivity. Rapid transitions in productivity are seen during shifts from interglacial to glacial climate states. Discrepancies between the Arctic API curves and various global climatic, sea-level and ice-volume curves suggest abrupt growth and decay of Arctic ice shelves related to climatic and sea level oscillations. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59457
Appears in Collections: 过去全球变化的重建
There are no files associated with this item.
作者单位: MS 926A US Geological Survey, Reston, VA, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Cherokee Nation Technology Solutions, MS 926A US Geological Survey, Reston, VA, United States
Recommended Citation:
Marzen R.E.,DeNinno L.H.,Cronin T.M.. Calcareous microfossil-based orbital cyclostratigraphy in the Arctic Ocean[J]. Quaternary Science Reviews,2016-01-01,149