南方科技大学知识苑(SUSTech KC): Experimental Evidence for a Weak Calcic-Amphibole-Rich Deep Crust in Orogens

题名	Experimental Evidence for a Weak Calcic-Amphibole-Rich Deep Crust in Orogens
作者	Wang，X.1,2 ; Zhang，J. F.1; Tommasi，A.3; Lopez-Sanchez，M. A.3,4; Jing，Z. C.2 ; Shi，F.1; Liu，W. L.1; Barou，F.3
通讯作者	Zhang，J. F.; Tommasi，A.
发表日期	2023-08-16
DOI	10.1029/2022GL102320
发表期刊	Geophysical Research Letters 影响因子和分区
ISSN	0094-8276
EISSN	1944-8007
卷号	50 期号:15
摘要	Amphibole-rich rocks constitute significant components of the mid- to lower continental crust, particularly in active orogens characterized with thick and hot crusts. Nevertheless, experimental data on their viscosity remain scarce. We conducted axial compression deformation experiments on synthetic amphibolites under temperature and pressure conditions resembling deep sections of overthickened crust. A novel flow law for a calcic-amphibole-rich rock (80% amphibole +20% garnet) in the dislocation creep regime is derived from these experiments. Contrary to common assumptions, our results reveal that calcic-amphibolite is 1-2 orders of magnitude weaker than plagioclase-rich amphibolite, granulite, or gabbro. A calcic-amphibole-rich, low viscosity deep crust may not only support the “channel flow” model proposed for the Tibetan Plateau but also explain the observed high crustal seismic anisotropy in the region.
关键词	calcic-amphibole dislocation creep flow laws orogen rheology
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
重要成果	NI论文
学校署名	其他
资助项目	Postdoctoral Research Foundation of China[2021M701563];National Natural Science Foundation of China[42172250];
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001041429700001
出版者	AMER GEOPHYSICAL UNION
EI入藏号	20233214500921
EI主题词	Feldspar ; Viscosity
EI分类号	Minerals:482.2 ; Fluid Flow, General:631.1 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951
ESI学科分类	GEOSCIENCES
Scopus记录号	2-s2.0-85166732516
来源库	Scopus
引用统计	被引频次[WOS]：2
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/559724
专题	理学院_地球与空间科学系
作者单位	1.State Key Laboratory of Geological Process and Mineral Resources,School of Earth Sciences,China University of Geoscience,Wuhan,China 2.Department of Earth and Space Sciences,Southern University of Science and Technology,Shenzhen,China 3.Géosciences Montpellier,CNRS & Université de Montpellier,Montpellier,France 4.Department of Geology,University of Oviedo,Oviedo,Spain
第一作者单位	地球与空间科学系
推荐引用方式 GB/T 7714	Wang，X.,Zhang，J. F.,Tommasi，A.,et al. Experimental Evidence for a Weak Calcic-Amphibole-Rich Deep Crust in Orogens[J]. Geophysical Research Letters,2023,50(15).
APA	Wang，X..,Zhang，J. F..,Tommasi，A..,Lopez-Sanchez，M. A..,Jing，Z. C..,...&Barou，F..(2023).Experimental Evidence for a Weak Calcic-Amphibole-Rich Deep Crust in Orogens.Geophysical Research Letters,50(15).
MLA	Wang，X.,et al."Experimental Evidence for a Weak Calcic-Amphibole-Rich Deep Crust in Orogens".Geophysical Research Letters 50.15(2023).