Thermally induced inversion of Al-substituted titanomagnetite in basalts: Evidence for partial self-reversal
文献类型：期刊论文
| 作者 | Pan, Yongxin; Liu, Qingsong; Deng, Chenglong; Qin, Huafeng; Zhu, Rixiang |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
 |
| 出版日期 | 2006-11-29 |
| 卷号 | 111期号:B12 |
| ISSN号 | 0148-0227 |
| DOI | 10.1029/2006JB004576 |
| 文献子类 | Article |
| 英文摘要 | [ 1] We report properties of laboratory-induced thermoremanence combined with detailed rock magnetic experiments on basaltic samples which contain aluminum-substituted titanomagnetite (Fe(2.24)Ti(0.64)Al(0.12)O(4)). Prior to Thellier-Coe paleointensity experiments, specimens were first demagnetized using an alternating field with a peak field of 90 mT and were then imparted an anhysteretic remanent magnetization ( ARM) to represent a natural remanent magnetization (NRM). Results show that the partial thermal remanent magnetization (pTRM) gain and ARM remaining are linearly correlated up to 300 degrees C. Between 300 and 460 degrees C, specimens acquire thermoremanence with a direction antiparallel to the external field direction, leading to intensity decreases. This coincides with the onset of the mineral transformation from Al-titanomagnetite to a magnetic phase with higher T(c). Our results support that phase interaction with distinct T(c) values in partially oxidized titanomagnetite can produce partial self-reversal thermoremanence in rocks. |
| WOS关键词 | OCEAN-FLOOR BASALTS ; THERMOREMANENT MAGNETIZATION ; REMANENT MAGNETIZATION ; TEMPERATURE OXIDATION ; CHEMICAL-COMPOSITION ; HANNUOBA BASALTS ; NORTHERN CHINA ; EASTERN CHINA ; PALEOINTENSITY ; INTENSITY |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| 出版者 | AMER GEOPHYSICAL UNION |
| WOS记录号 | WOS:000242745300001 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/66328]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Pan, Yongxin |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Paleomagnetism & Geochronol Lab SKLLE, Beijing 100029, Peoples R China 2.Univ Southampton, Natl Oceanog Ctr, Southampton SO14 3ZH, Hants, England |
| 推荐引用方式 GB/T 7714 | Pan, Yongxin,Liu, Qingsong,Deng, Chenglong,et al. Thermally induced inversion of Al-substituted titanomagnetite in basalts: Evidence for partial self-reversal[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,2006,111(B12). |
| APA | Pan, Yongxin,Liu, Qingsong,Deng, Chenglong,Qin, Huafeng,&Zhu, Rixiang.(2006).Thermally induced inversion of Al-substituted titanomagnetite in basalts: Evidence for partial self-reversal.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,111(B12). |
| MLA | Pan, Yongxin,et al."Thermally induced inversion of Al-substituted titanomagnetite in basalts: Evidence for partial self-reversal".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 111.B12(2006). |
入库方式： OAI收割
来源：地质与地球物理研究所
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