Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1017/S095410200300138X |
Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering | |
Bloemendal, J; Ehrmann, W; Hambrey, MJ; McKelvey, BC; Matthews, R; Whitehead, JM | |
通讯作者 | Bloemendal, J |
来源期刊 | ANTARCTIC SCIENCE
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ISSN | 0954-1020 |
出版年 | 2003 |
卷号 | 15期号:3页码:365-378 |
英文摘要 | Geochemical and magnetic data from glacigenic sediments can be useful indicators of past environments and climate. In this paper, the results of X-ray fluorescence (XRF) and rock magnetic analyses are presented for samples from the Pagodroma Group, an assemblage of pre-Quaternary glacimarine sediments preserved as remnants along the raised flanks of the Lambert Graben, Prince Charles Mountains, East Antarctica. Samples were obtained from four formations: Mount Johnston, Battye Glacier, Fisher Bench and Bardin Bluffs, which range in age from late Oligocene or early Miocene through to Pliocene or early Pleistocene. Principal component analysis of the XRF data indicates the occurrence of two main element assemblages, which we infer are determined by the presence in the Bardin Bluffs formation of a significant component derived from Permo-Triassic sedimentary rocks of the Amery Group. Calculation of chemical indices of alteration suggests that the values reflect provenance differences rather than the syndepositional weathering environment. Multidomain ferrimagnetic grains mainly dominate the magnetic mineral assemblages of the samples, probably magnetite, with varying concentrations of high coercivity material, probably hematite. |
英文关键词 | Antarctica Cenozoic glaciomarine sediments East Antarctic ice sheet magnetic and geochemical properties Pagodroma Group |
类型 | Article |
语种 | 英语 |
国家 | England ; Germany ; Wales ; Australia ; USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000185543900007 |
WOS关键词 | BAINMEDART COAL MEASURES ; PRYDZ BAY ; AMERY OASIS ; ICE-SHEET ; GLACIER ; STRATIGRAPHY ; DIATOMS ; SHELF ; BASIN ; LAND |
WOS类目 | Environmental Sciences ; Geography, Physical ; Geosciences, Multidisciplinary |
WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography ; Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/144095 |
作者单位 | (1)Univ Liverpool, Dept Geog, Liverpool L69 3BX, Merseyside, England;(2)Univ Leipzig, Inst Geophys & Geol, D-04193 Leipzig, Germany;(3)Univ Wales, Inst Geog & Earth Sci, Ctr Glaciol, Aberystwyth SY23 3DB, Dyfed, Wales;(4)Univ New England, Sch Phys Sci, Div Earth Sci, Armidale, NSW 2351, Australia;(5)Univ Nebraska, Dept Geosci, Lincoln, NE 68588 USA;(6)Univ Tasmania, Inst Antarctic & So Ocean Studies, Hobart, Tas 7001, Australia;(7)Univ Tasmania, Antarctic Cooperat Res Ctr, Hobart, Tas 7001, Australia |
推荐引用方式 GB/T 7714 | Bloemendal, J,Ehrmann, W,Hambrey, MJ,et al. Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering[J],2003,15(3):365-378. |
APA | Bloemendal, J,Ehrmann, W,Hambrey, MJ,McKelvey, BC,Matthews, R,&Whitehead, JM.(2003).Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering.ANTARCTIC SCIENCE,15(3),365-378. |
MLA | Bloemendal, J,et al."Geochemical and rock magnetic records from sediments of the Cenozoic Pagodroma Group, Prince Charles Mountains, East Antarctica: implications for provenance and weathering".ANTARCTIC SCIENCE 15.3(2003):365-378. |
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