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DOI | 10.1029/2018GL077178 |
Anomalous Complex Electrical Conductivity of a Graphitic Black Schist From the Himalayas of Central Nepal | |
Boerner, Jana H.1; Girault, Frederic2; Bhattarai, Mukunda3; Adhikari, Lok Bijaya3; Deldicque, Damien4; Perrier, Frederic2; Spitzer, Klaus1 | |
2018-05-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2018 |
卷号 | 45期号:9页码:3984-3993 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany; France; Nepal |
英文摘要 | We analyzed in the laboratory the frequency-dependent, complex-valued, electrical conductivity of a graphitic black schist and an augen gneiss, both collected in the Main Central Thrust shear zone in the Himalayas of central Nepal, which was heavily affected by the deadly Mw7.8 Gorkha earthquake in 2015. We focused on anisotropy and salinity dependence of both cores and crushed material as well as the impact of CO2 on conductivity. This black schist possesses an extraordinarily high polarizability and a highly frequency-dependent conductivity. Its anisotropy is very pronounced. The investigations can relate the main polarization feature to disseminated, aligned plates of graphite. By contrast, the augen gneiss shows low polarizability and a moderately anisotropic conductivity dominated by the pore-filling brine. We further demonstrate that neglecting the complex and frequency-dependent nature of conductivity can lead to serious misinterpretation of magnetotelluric data during inversion if highly polarizable rocks are present. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000434111700027 |
WOS关键词 | SPECTRAL INDUCED POLARIZATION ; SALINITY DEPENDENCE ; POROUS-MEDIA ; SHALY SANDS ; CO2 ; MODELS ; SYSTEM ; ROCKS ; INDIA ; WATER |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/25849 |
专题 | 气候变化 |
作者单位 | 1.TU Bergakad Freiberg, Inst Geophys & Geoinformat, Freiberg, Germany; 2.Univ Paris Diderot, CNRS, Sorbonne Paris Cite, Inst Phys Globe Paris, Paris, France; 3.Natl Seismol Ctr, Dept Mines & Geol, Kathmandu, Nepal; 4.PSL Res Univ, CNRS, Lab Geol ENS, UMR 8538, Paris, France |
推荐引用方式 GB/T 7714 | Boerner, Jana H.,Girault, Frederic,Bhattarai, Mukunda,et al. Anomalous Complex Electrical Conductivity of a Graphitic Black Schist From the Himalayas of Central Nepal[J]. GEOPHYSICAL RESEARCH LETTERS,2018,45(9):3984-3993. |
APA | Boerner, Jana H..,Girault, Frederic.,Bhattarai, Mukunda.,Adhikari, Lok Bijaya.,Deldicque, Damien.,...&Spitzer, Klaus.(2018).Anomalous Complex Electrical Conductivity of a Graphitic Black Schist From the Himalayas of Central Nepal.GEOPHYSICAL RESEARCH LETTERS,45(9),3984-3993. |
MLA | Boerner, Jana H.,et al."Anomalous Complex Electrical Conductivity of a Graphitic Black Schist From the Himalayas of Central Nepal".GEOPHYSICAL RESEARCH LETTERS 45.9(2018):3984-3993. |
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