The first-order reversal curve (FORC) diagram: Theory and case study
文献类型：期刊论文
| 作者 | Qin Hua-Feng; Liu Qing-Song; Pan Yong-Xin |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2008-05-01 |
| 卷号 | 51期号:3页码:743-751 |
| 关键词 | FORC diagram magnetic interaction coercivity spectrum Preisach model |
| ISSN号 | 0001-5733 |
| 文献子类 | Article |
| 英文摘要 | The magnetic minerals in natural rocks can record variations in paleoenvironment. However, the magnetic properties of samples represent signals from the assemblage of various magnetic minerals and grain sizes of the measured samples. To circumvent this problem, the first-order reversal curve (FORC) diagram was designed recently to decode the magnetic properties of bulk samples. The FORC diagram can provide the distributions of both the coercivity spectrum and the magnetic interaction field. Moreover, it may also identify different magnetic minerals and characterize their domain status. In this paper, we firstly introduced the theory of the FORC diagram and its physical explanations. We then applied the method in detecting the thermal alteration of a basalt sample, which contains aluminum-substituted titanomagnetite. In order to further enhance the signal related to the thermal alteration upon heating, we constructed the difference of two FORC diagrams measured at two temperatures for the first time. The results show that the difference of two FORC diagrams is rather sensitive, and can diagnose even subtle changes in magnetic minerals upon heating. |
| WOS关键词 | ROCK-MAGNETIC-PROPERTIES ; PREISACH DIAGRAMS ; SINGLE-DOMAIN ; HYSTERESIS ; SYSTEMS ; SAMPLES ; MODELS |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000256294600015 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/68892]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Qin Hua-Feng |
| 作者单位 | Chinese Acad Sci, Inst Geol & Geophys, Paleomagnet & Geochronol Lab, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qin Hua-Feng,Liu Qing-Song,Pan Yong-Xin. The first-order reversal curve (FORC) diagram: Theory and case study[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2008,51(3):743-751. |
| APA | Qin Hua-Feng,Liu Qing-Song,&Pan Yong-Xin.(2008).The first-order reversal curve (FORC) diagram: Theory and case study.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,51(3),743-751. |
| MLA | Qin Hua-Feng,et al."The first-order reversal curve (FORC) diagram: Theory and case study".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 51.3(2008):743-751. |
入库方式： OAI收割
来源：地质与地球物理研究所
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