A new weathering indicator from high-temperature magnetic susceptibility measurements in an Argon atmosphere
文献类型：期刊论文
| 作者 | Liu, Caicai1; Wang, Wei3; Deng, Chenglong2 |
| 刊名 | GEOPHYSICAL JOURNAL INTERNATIONAL
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 221期号:3页码:2010-2025 |
| ISSN号 | 0956-540X |
| 关键词 | Environmental magnetism Magnetic mineralogy and petrology Rock and mineral magnetism |
| DOI | 10.1093/gji/ggaa128 |
| 英文摘要 | Environmental magnetism has become more and more popular because it is inexpensive, rapid and non-destructive. However, the environmental implication of traditional magnetic parameters is changed as the weathering intensity is contrasting. For example, magnetic susceptibility cannot be used as pedogenic index for strongly weathered red soils. Thermal magnetic measurement is a common way to identify magnetic minerals in rocks and sediments. Susceptibility enhancement after a 700 degrees C heating cycle in an argon atmosphere usually happened for various rocks and sediments. The increase is caused by formation of new magnetite from iron derived from paramagnetic iron-containing minerals. This is similar to pedogenesis or weathering process. The heating process in lab released the residual iron in weatherable iron-containing silicates which has not yet been depleted by contemporary pedogenesis or weathering. This residual iron can be quantified by the amount of susceptibility increase after a heating cycle. A negative correlation between the susceptibility increase after heating and the weathering intensity has been found in high-temperature magnetic susceptibility measurements of several sequences located in different climate zones. Results suggest that the degree of weathering can be estimated for intensely weathered red soils as well as for scarcely weathered loess using the amount of susceptibility change after a 700 degrees C heating cycle. This study provides new perspectives for developing new weathering and pedoclimate proxies using environmental magnetism. |
| WOS关键词 | RED SOIL SEQUENCES ; CHINESE LOESS ; DEPENDENT SUSCEPTIBILITY ; MAGNETOSTRATIGRAPHY ; PEDOGENESIS ; MINERALS ; DEPOSITS ; PLATEAU ; SECTION ; IRON |
| 资助项目 | National Key Research and Development Program of China[2017YFC1500104] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant[2019QZKK0704] ; National Natural Science Foundation of China[41622204] ; National Natural Science Foundation of China[41761144071] ; National Natural Science Foundation of China[41474053] ; NSFC[41690112] ; NSFC[41621004] |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000536503700038 |
| 资助机构 | National Key Research and Development Program of China ; National Key Research and Development Program of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant ; Second Tibetan Plateau Scientific Expedition and Research (STEP) grant ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; NSFC ; NSFC |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/96670]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Liu, Caicai |
| 作者单位 | 1.China Earthquake Adm, Inst Geol, State Key Lab Earthquake Dynam, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 3.Shandong Univ, Inst Cultural Heritage, 72 Jimo Binhai Rd, Qingdao 266237, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Caicai,Wang, Wei,Deng, Chenglong. A new weathering indicator from high-temperature magnetic susceptibility measurements in an Argon atmosphere[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2020,221(3):2010-2025. |
| APA | Liu, Caicai,Wang, Wei,&Deng, Chenglong.(2020).A new weathering indicator from high-temperature magnetic susceptibility measurements in an Argon atmosphere.GEOPHYSICAL JOURNAL INTERNATIONAL,221(3),2010-2025. |
| MLA | Liu, Caicai,et al."A new weathering indicator from high-temperature magnetic susceptibility measurements in an Argon atmosphere".GEOPHYSICAL JOURNAL INTERNATIONAL 221.3(2020):2010-2025. |
入库方式： OAI收割
来源：地质与地球物理研究所
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