DOI: 10.1016/j.quascirev.2019.03.009
Scopus记录号: 2-s2.0-85062832348
论文题名: Late Quaternary lacustrine deposits of the Dead Sea basin: high resolution sequence stratigraphy from downhole logging data
作者: Coianiz L. ; Bialik O.M. ; Ben-Avraham Z. ; Lazar M.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2019
卷: 210 起始页码: 175
结束页码: 189
语种: 英语
Scopus关键词: Boreholes
; Deposition
; Lakes
; Lithology
; Sedimentology
; Depositional sequences
; High resolution sequence stratigraphy
; Highstand systems tract
; Late Pleistocene-Holocene
; Sequence architectures
; Sequence stratigraphy
; Stratigraphic analysis
; Transgressive systems tracts
; Stratigraphy
英文摘要: Sequence architecture and depositional sequences of the Quaternary lacustrine succession deposited in the northern Dead Sea sub-basin were examined using logging data collected during the 2010-2011 ICDP campaign. Methods borrowed from sequence stratigraphy techniques were used to investigate the characteristics of sediments deposited in the central part of the northern lake. High resolution wire logging data combined with a detailed lithological description of the ICDP 5017-1-A deep borehole were used to examine depositional systems and related processes controlling their formation. Analysis of sedimentary stacking patterns and stratal surfaces within the late Pleistocene-Holocene lacustrine succession revealed 10 depositional sequences. It was possible to identify key stratal boundaries and to discern between three sedimentary stacking patterns interpreted here as representing lowstand systems tracts (LST), transgressive systems tracts (TST) and highstand systems tracts (HST). Examined together, they may be interpreted in terms of relative lake level changes. On the basis of the stratigraphic analysis complemented with new age dating, this article presents a record of the sediment accumulation pattern and a relative lake level curve reconstructed for the last ca 225 ka. Results show that stratigraphic units and depositional and erosional surfaces examined in the deep 5017-1-A borehole can be correlated to the proximal area of the basin. This means that changes in relative lake levels were generally synchronous and uniform across the Dead Sea basin. The creation of accommodation space in the northern Dead Sea was found to generally be in phase with paleoclimatic modulating lake levels, and not due to tectonics. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/117338
Appears in Collections: 气候变化与战略
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Recommended Citation:
Coianiz L.,Bialik O.M.,Ben-Avraham Z.,et al. Late Quaternary lacustrine deposits of the Dead Sea basin: high resolution sequence stratigraphy from downhole logging data[J]. Quaternary Science Reviews,2019-01-01,210