DOI: 10.1002/grl.50182
论文题名: Relative sea level variations in the Chukchi region - Arctic Ocean - Since the late Eocene
作者: Hegewald A. ; Jokat W.
刊名: Geophysical Research Letters
ISSN: 0094-9256
EISSN: 1944-8987
出版年: 2013
卷: 40, 期: 5 起始页码: 803
结束页码: 807
语种: 英语
英文关键词: Chukchi Shelf
; multi-channel seismic reflection data
; prograding sequences
; relative sea level variations
Scopus关键词: Chukchi Shelf
; Erosional process
; Material transport
; Multi-channel seismic
; Multi-channel seismic datum
; prograding sequences
; Relative sea level
; Tectonic activity
; Sea level
; Sedimentology
; Stratigraphy
; Seismic waves
; basin analysis
; comparative study
; correlation
; Eocene
; progradation
; sea level change
; seismic data
; tectonics
; Arctic Ocean
; Chukchi
; Russian Federation
英文摘要: Relative sea level (RSL) variations are a result of tectonic activity, changing of the water volume in ocean basins (e.g. due to increasing/decreasing of ice volume, evaporation) and variations in regional to global climate, which influence erosional processes and material transport. We present multi-channel seismic data combined with dated sediment horizons from the Chukchi Shelf, Arctic Ocean. Based on a series of prograding sequences in the upper 4 km of sediments and the method of seismic sequence stratigraphy, we introduce the first RSL curve for the Chukchi region, beginning in the late Eocene (40 Ma). The comparison of the Chukchi RSL curve with the global RSL curve shows that RSL lowering events in the Chukchi region do not correlate with global events for the Eocene/Oligocene - early Miocene. Between the Eocene/Oligocene and the late Oligocene, the Chukchi RSL variations were small (< 100 m). Since the late Oligocene the Chukchi RSL increased until the opening of the Fram Strait in the early Miocene. We show that the Chukchi RSL variations are representative for the Arctic Ocean, and conclude that the Arctic Ocean was an isolated basin for the Eocene/Oligocene - early Miocene. © 2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84876805285&doi=10.1002%2fgrl.50182&partnerID=40&md5=2b81369ab034a8ba65739952f40478dc
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6520
Appears in Collections: 气候减缓与适应
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作者单位: Alfred Wegener Institute for Polar and Marine Research, Post Box 120161, 27515 Bremerhaven, Germany
Recommended Citation:
Hegewald A.,Jokat W.. Relative sea level variations in the Chukchi region - Arctic Ocean - Since the late Eocene[J]. Geophysical Research Letters,2013-01-01,40(5).