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Hisingerite in Trachydacite from Tarim: Implications for Voluminous Felsic Rocks in Transitional Large Igneous Province
Lang, Mingde1; Cheng, Zhiguo1; Zhang, Zhaochong1; Wang, Fangyue2; Mao, Qian3; Santosh, M.1,4
2020-10-01
Source PublicationJOURNAL OF EARTH SCIENCE
ISSN1674-487X
Volume31Issue:5Pages:875-883
AbstractUnlike the typical large igneous provinces (LIPs) that are dominated by mafic-ultramafic rocks, the Tarim large igneous province (TLIP) is characterized by a high proportion of felsic rocks, based on which the TLIP is classified as a transitional LIP. In this study, we focus on the trachydacite from the TLIP in which we report the characteristics of hisingerite employing a variety of techniques such as EMPA, LA-ICPMS, CCD single crystal diffraction, and bulk-rock oxygen isotopes. The hisingerite in this rock is associated with plagioclase, amphibole, apatite and ilmenite. These minerals occur as aggregates of fine curled fibers in micron-scale and display heavy rare earth elements (HREE) enriched signature with significant negative Eu anomalies. In the primitive mantle-normalized trace element spider diagrams, they show pronounced Th and U spikes and Nb, Zr, Hf troughs. Petrological observation and mineralogical study reveal a closely genetic relationship between hisingerite and amphibole, indicating that the hisingerite might have been derived from the breakdown of amphibole during the magma ascent. The formation of hisingerite requires excess water from the surrounding melts, suggesting a hydrous parental magma. The hisingerite and amphibole assign a hydrous crustal source for the rock, and extensive crustal melting accounts for the voluminous felsic rocks in the TLIP.
Keywordhisingerite amphibole j]trachydacite hydrous crust Tarim large igneous province
DOI10.1007/s12583-020-1330-x
WOS KeywordLA-ICP-MS ; TRACE-ELEMENT ; FLOOD-BASALT ; GEOCHEMISTRY ; ISOTOPE ; BASIN ; RHYOLITES ; SYSTEMS ; CHINA ; MECHANISMS
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000584412300002
PublisherCHINA UNIV GEOSCIENCES, WUHAN
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/98653
Collection岩石圈演化国家重点实验室
Corresponding AuthorCheng, Zhiguo; Zhang, Zhaochong
Affiliation1.China Univ Geosci, State Key Lab Geol Proc & Mineral Resources, Beijing 100083, Peoples R China
2.Hefei Univ Technol, Ore Deposit & Explorat Ctr ODEC, Hefei 230009, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
4.Univ Adelaide, Dept Earth Sci, Adelaide, SA 5005, Australia
Recommended Citation
GB/T 7714
Lang, Mingde,Cheng, Zhiguo,Zhang, Zhaochong,et al. Hisingerite in Trachydacite from Tarim: Implications for Voluminous Felsic Rocks in Transitional Large Igneous Province[J]. JOURNAL OF EARTH SCIENCE,2020,31(5):875-883.
APA Lang, Mingde,Cheng, Zhiguo,Zhang, Zhaochong,Wang, Fangyue,Mao, Qian,&Santosh, M..(2020).Hisingerite in Trachydacite from Tarim: Implications for Voluminous Felsic Rocks in Transitional Large Igneous Province.JOURNAL OF EARTH SCIENCE,31(5),875-883.
MLA Lang, Mingde,et al."Hisingerite in Trachydacite from Tarim: Implications for Voluminous Felsic Rocks in Transitional Large Igneous Province".JOURNAL OF EARTH SCIENCE 31.5(2020):875-883.
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