DOI: 10.5194/cp-8-1067-2012
Scopus记录号: 2-s2.0-84878379342
论文题名: A 500 kyr record of global sea-level oscillations in the Gulf of Lion, Mediterranean Sea: New insights into MIS 3 sea-level variability
作者: Frigola J. ; Canals M. ; Cacho I. ; Moreno A. ; Sierro F.J. ; Flores J.A. ; Berné S. ; Jouet G. ; Dennielou B. ; Herrera G. ; Pasqual C. ; Grimalt J.O. ; Galavazi M. ; Schneider R.
刊名: Climate of the Past
ISSN: 18149324
出版年: 2012
卷: 8, 期: 3 起始页码: 1067
结束页码: 1077
语种: 英语
Scopus关键词: borehole
; chronostratigraphy
; continental margin
; continental shelf
; Dansgaard-Oeschger cycle
; glacial-interglacial cycle
; glacioeustacy
; grain size
; marine isotope stage
; Pleistocene
; sea level change
; sedimentary structure
; Gulf of Lion
; Mediterranean Sea
英文摘要: Borehole PRGL1-4 drilled in the upper slope of the Gulf of Lion provides an exceptional record to investigate the impact of late Pleistocene orbitally-driven glacio-eustatic sea-level oscillations on the sedimentary outbuilding of a river fed continental margin. High-resolution grain-size and geochemical records supported by oxygen isotope chronostratigraphy allow reinterpreting the last 500 ka upper slope seismostratigraphy of the Gulf of Lion. Five main sequences, stacked during the sea-level lowering phases of the last five glacial-interglacial 100-kyr cycles, form the upper stratigraphic outbuilding of the continental margin. The high sensitivity of the grain-size record down the borehole to sea-level oscillations can be explained by the great width of the Gulf of Lion continental shelf. Sea level driven changes in accommodation space over the shelf cyclically modified the depositional mode of the entire margin. PRGL1-4 data also illustrate the imprint of sea-level oscillations at millennial time-scale, as shown for Marine Isotopic Stage 3, and provide unambiguous evidence of relative high sea-levels at the onset of each Dansgaard-Oeschger Greenland warm interstadial. The PRGL1-4 grain-size record represents the first evidence for a one-to-one coupling of millennial time-scale sea-level oscillations associated with each Dansgaard-Oeschger cycle. © Author(s) 2012. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49550
Appears in Collections: 气候变化与战略
There are no files associated with this item.
Recommended Citation:
Frigola J.,Canals M.,Cacho I.,et al. A 500 kyr record of global sea-level oscillations in the Gulf of Lion, Mediterranean Sea: New insights into MIS 3 sea-level variability[J]. Climate of the Past,2012-01-01,8(3)