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  2. 地质与地球物理研究所
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  4. 中国科学院地球与行星物理重点实验室
Assessment and Integration of Bulk and Component-Specific Methods for Identifying Mineral Magnetic Assemblages in Environmental Magnetism

文献类型：期刊论文

作者Qian, Yao5; Roberts, Andrew P.5; Liu, Yan4; Hu, Pengxiang5; Zhao, Xiang5; Heslop, David5; Grant, Katharine M.5; Rohling, Eelco J.3,5; Hennekam, Rick1,2; Li, Jinhua4
刊名JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
出版日期2020-08-01
卷号125期号:8页码:19
ISSN号2169-9313
DOI10.1029/2019JB019024
英文摘要Magnetic parameters are used extensively to interpret magnetic mineral assemblage variations in environmental studies. Conventional room temperature measurements of bulk magnetic parameters, like the anhysteretic remanent magnetization (ARM) and the ratio of the susceptibility of ARM to magnetic susceptibility (chi), can reflect, respectively, magnetic mineral concentration and/or particle size variations in sediments, although they are not necessarily well suited for identifying magnetic components within individual magnetic mineral assemblages. More advanced techniques, such as first-order reversal curve (FORC) diagrams and low-temperature (LT) magnetic measurements, can enable detailed discrimination of magnetic assemblages. Here, we integrate conventional bulk magnetic measurements alongside FORC diagrams, LT measurements, and X-ray fluorescence core-scan data, transmission electron microscope observations, and principal component analysis of FORC diagrams to identify and quantify magnetic mineral assemblages in eastern Mediterranean sediments. The studied sediments were selected because they contain complexly varying mixtures of detrital, biogenic, and diagenetically altered magnetic mineral assemblages that were deposited under varying oxic (organic-poor marls) to anoxic (organic-rich sapropels) conditions. Conventional bulk magnetic parameters provide continuous records of environmental magnetic variations, while more time-consuming LT and FORC measurements on selected samples provide direct ground-truthing of mineral magnetic assemblages that enables calculation of magnetization contributions of different end members. Thus, a combination of conventional bulk parameters and advanced magnetic techniques can provide detailed records from which the meaning of environmental magnetic signals can be unlocked.
WOS关键词EASTERN MEDITERRANEAN SAPROPELS ; REVERSAL CURVE DIAGRAMS ; ACTIVE OXIDATION FRONT ; DEEP-SEA SEDIMENTS ; AFRICAN MONSOON ; RICH LAYERS ; GRAIN-SIZE ; S1 ; CLIMATE ; RECORD
资助项目Australian Research Council[DP160100805] ; Australian Research Council[DE190100042] ; National Natural Science Foundation of China[41920104009] ; National Natural Science Foundation of China[41890843] ; China Scholarship Council
WOS研究方向Geochemistry & Geophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000582684200072
资助机构Australian Research Council ; Australian Research Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Australian Research Council ; Australian Research Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Australian Research Council ; Australian Research Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; Australian Research Council ; Australian Research Council ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council
源URL[http://ir.iggcas.ac.cn/handle/132A11/98697]  
专题地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者Qian, Yao
作者单位1.Univ Utrecht, Utrecht, Netherlands
2.NIOZ Royal Netherlands Inst Sea Res, Dept Ocean Syst, Utrecht, Netherlands
3.Univ Southampton, Natl Oceanog Ctr, Ocean & Earth Sci, Southampton, Hants, England
4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China
5.Australian Natl Univ, Res Sch Earth Sci, Canberra, ACT, Australia
推荐引用方式
GB/T 7714		 Qian, Yao,Roberts, Andrew P.,Liu, Yan,et al. Assessment and Integration of Bulk and Component-Specific Methods for Identifying Mineral Magnetic Assemblages in Environmental Magnetism[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2020,125(8):19.
APA Qian, Yao.,Roberts, Andrew P..,Liu, Yan.,Hu, Pengxiang.,Zhao, Xiang.,...&Li, Jinhua.(2020).Assessment and Integration of Bulk and Component-Specific Methods for Identifying Mineral Magnetic Assemblages in Environmental Magnetism.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,125(8),19.
MLA Qian, Yao,et al."Assessment and Integration of Bulk and Component-Specific Methods for Identifying Mineral Magnetic Assemblages in Environmental Magnetism".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 125.8(2020):19.

入库方式： OAI收割

来源：地质与地球物理研究所

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