Electrical conductivity of mudstone (before and after dehydration at high P-T) and a test of high conductivity layers in the crust

doi:10.2138/am-2017-6146

	Electrical conductivity of mudstone (before and after dehydration at high P-T) and a test of high conductivity layers in the crust
	Sun, Wenqing 1,2; Dai, Lidong 1; Li, Heping 1; Hu, Haiying 1,3; Wu, Lei 1; Jiang, Jianjun 1
刊名	AMERICAN MINERALOGIST
	2017-12-01
卷号	102 期号:12 页码:2450-2456
关键词	Electrical Conductivity Mudstone High Pressure Dehydration Conduction Mechanism High-conductivity Layer
ISSN号	0003-004X
DOI	10.2138/am-2017-6146
文献子类	Article
英文摘要	The electrical conductivity of mudstone before and after dehydration was measured using complex impedance spectroscopy in the frequency range of 10(-1) to 10(6) Hz, and the experiments were carried out at 0.5-2.5 GPa and 623-973 K. Before and after dehydration, the electrical conductivity of mudstone and temperature followed an Arrhenius relation. The influence of pressure on electrical conductivity was weaker than that of temperature. The conductivity slightly increased with increasing pressure. Dehydration at 760-800 K dramatically enhanced the electrical conductivity of mudstone; the dehydration temperature decreased slightly with increasing pressure. Hydrogen-related lattice defects (e.g., H'(M) or H-center dot) are proposed to be the main charge carriers in the mudstone sample before dehydration, whereas H+ and OH- are suggested to be the main charge carriers in the dehydration product of mudstone. Finally, the electrical conductivity of the dehydration product of mudstone can be used to interpret high-conductivity layers (HCLs) associated with the Hope and Porters Pass fault zones in Marlborough, New Zealand.
WOS关键词	LOWER CONTINENTAL-CRUST ; HIGH-TEMPERATURE ; HIGH-PRESSURE ; SOUTHERN TIBET ; SUBDUCTION ZONES ; SERPENTINE ; OLIVINE ; GNEISS ; ASTHENOSPHERE ; LITHOSPHERE
WOS研究方向	Geochemistry & Geophysics ; Mineralogy
语种	英语
出版者	MINERALOGICAL SOC AMER
WOS记录号	WOS:000417990500009
资助机构	Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 18010401) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 18010401) ; Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-DQC009) ; Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-DQC009) ; "135" Program of the Institute of Geochemistry of CAS ; "135" Program of the Institute of Geochemistry of CAS ; Hundred Talents Program of CAS ; Hundred Talents Program of CAS ; NSF of China(41474078 ; NSF of China(41474078 ; 41774099 ; 41774099 ; 41772042) ; 41772042) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 18010401) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 18010401) ; Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-DQC009) ; Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-DQC009) ; "135" Program of the Institute of Geochemistry of CAS ; "135" Program of the Institute of Geochemistry of CAS ; Hundred Talents Program of CAS ; Hundred Talents Program of CAS ; NSF of China(41474078 ; NSF of China(41474078 ; 41774099 ; 41774099 ; 41772042) ; 41772042) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 18010401) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 18010401) ; Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-DQC009) ; Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-DQC009) ; "135" Program of the Institute of Geochemistry of CAS ; "135" Program of the Institute of Geochemistry of CAS ; Hundred Talents Program of CAS ; Hundred Talents Program of CAS ; NSF of China(41474078 ; NSF of China(41474078 ; 41774099 ; 41774099 ; 41772042) ; 41772042) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 18010401) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 18010401) ; Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-DQC009) ; Key Research Projects of the Frontier Science of the Chinese Academy of Sciences(QYZDB-SSW-DQC009) ; "135" Program of the Institute of Geochemistry of CAS ; "135" Program of the Institute of Geochemistry of CAS ; Hundred Talents Program of CAS ; Hundred Talents Program of CAS ; NSF of China(41474078 ; NSF of China(41474078 ; 41774099 ; 41774099 ; 41772042) ; 41772042)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/82260]
专题	中国科学院地质与地球物理研究所
通讯作者	Dai, Lidong
作者单位	1.Chinese Acad Sci, Inst Geochem, Key Lab High Temp & High Pressure Study Earths In, Guiyang 550081, Guizhou, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Sun, Wenqing,Dai, Lidong,Li, Heping,et al. Electrical conductivity of mudstone (before and after dehydration at high P-T) and a test of high conductivity layers in the crust[J]. AMERICAN MINERALOGIST,2017,102(12):2450-2456.
APA	Sun, Wenqing,Dai, Lidong,Li, Heping,Hu, Haiying,Wu, Lei,&Jiang, Jianjun.(2017).Electrical conductivity of mudstone (before and after dehydration at high P-T) and a test of high conductivity layers in the crust.AMERICAN MINERALOGIST,102(12),2450-2456.
MLA	Sun, Wenqing,et al."Electrical conductivity of mudstone (before and after dehydration at high P-T) and a test of high conductivity layers in the crust".AMERICAN MINERALOGIST 102.12(2017):2450-2456.