DOI: 10.1016/j.quascirev.2017.03.009
Scopus记录号: 2-s2.0-85015655551
论文题名: Analysis of Antarctic glacigenic sediment provenance through geochemical and petrologic applications
作者: Licht K.J. ; Hemming S.R.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2017
卷: 164 起始页码: 1
结束页码: 24
语种: 英语
英文关键词: Bedrock geology
; Geochronology
; Glacial geology
; Ice-rafted debris
; Petrography
; Radiogenic isotopes
; Sediment transport
; Thermochronology
; Till
Scopus关键词: Catchments
; Debris
; Erosion
; Geochronology
; Geology
; Glaciers
; Ice
; Petrography
; Sea ice
; Sediment transport
; Sedimentation
; Sediments
; Submarine geology
; Bedrock geology
; Ice rafted debris
; Radiogenic isotopes
; Thermochronology
; Till
; Glacial geology
; analytical method
; bedrock
; geochemistry
; geochronology
; glacial erosion
; grain size
; ice sheet
; ice-rafted debris
; iceberg calving
; isotopic analysis
; petrography
; sediment transport
; thermochronology
; Antarctica
英文摘要: The number of provenance studies of glacigenic sediments in Antarctica has increased dramatically over the past decade, providing an enhanced understanding of ice sheet history and dynamics, along with the broader geologic history. Such data have been used to assess glacial erosion patterns at the catchment scale, flow path reconstructions over a wide range of scales, and ice sheet fluctuations indicated by iceberg rafted debris in circumantarctic glacial marine sediments. It is notable that even though most of the bedrock of the continent is ice covered and inaccessible, provenance data can provide such valuable information about Antarctic ice and can even be used to infer buried rock types along with their geo- and thermochronologic history. Glacigenic sediments provide a broader array of provenance analysis opportunities than any other sediment type because of their wide range of grain sizes, and in this paper we review methods and examples from all size fractions that have been applied to the Antarctic glacigenic sedimentary record. Interpretations of these records must take careful consideration of the choice of analytical methods, uneven patterns of erosion, and spatial variability in sediment transport and rock types, which all may lead to a preferential identification of different elements of sources in the provenance analyses. Because of this, we advocate a multi-proxy approach and highlight studies that demonstrate the value of selecting complementary provenance methods. © 2017 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/59249
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Earth Sciences, Indiana University Purdue University Indianapolis, Indianapolis, IN, United States; Department of Earth and Environmental Sciences, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Recommended Citation:
Licht K.J.,Hemming S.R.. Analysis of Antarctic glacigenic sediment provenance through geochemical and petrologic applications[J]. Quaternary Science Reviews,2017-01-01,164