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Geochemistry and chronology of the Jiehekou Group metamorphic basic volcanic rocks in the Luliang Mountain area, Shanxi, China
Lu, JZ; Zhang, Q; Ouyang, Z; Li, CL; Zou, YL; Xi, L
2003-11-01
Source PublicationSCIENCE IN CHINA SERIES D-EARTH SCIENCES
Volume46Issue:11Pages:1171-1181
AbstractSamples were systematically collected from metamorphic basic volcanic rocks in the Jiehekou and Xiyupi areas on both sides of the Luliang Mountains, Shanxi Province and analyzed for their major elements, trace elements and rare earth elements (REE). The geochemical characteristics of their major, trace and rare-earth elements indicated that the metamorphic basic volcanic rocks in this area were emplaced in the tectonic environment like a modern continental rift. Sm-Nd and Rb-Sr isotope chronological studies demonstrated that the Jiehekou Group metamorphic basic volcanic rocks were formed during the 2600-Ma crust/mantle differentiation event, and were transformed by granulite facies metamorphism during the late Neo-Archaean period (2500 Ma+/-), making the Sm-Nd systematics of the rocks reset. During the late Paleoproterozoic period (1800 Ma+/-) the Rb-Sr systematics of the rocks were disturbed again in response to the Luliang movement. Since the extent of disturbance was so weak that the Sm-Nd systematics was not affected, the age of 1600 Ma obtained from this area seems to be related to local magmatic activities within the craton. Research results lend no support to the idea that the Luliang Group was formed during the Archaean. Instead, it should be formed during the Proterozoic.
KeywordChronology Geochemistry Metamorphic Basic Volcanic Rock Jiehekou Group
DOI10.1360/99yd0278
Indexed BySCI
Language英语
WOS IDWOS:000185763600009
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/8424
Collection月球与深空探测研究部
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Chinese Survey & Res Ctr Mineral Resources, Beijing 100101, Peoples R China
3.Chinese Acad Sci, Inst Geochem, Guiyang 550002, Peoples R China
Recommended Citation
GB/T 7714
Lu, JZ,Zhang, Q,Ouyang, Z,et al. Geochemistry and chronology of the Jiehekou Group metamorphic basic volcanic rocks in the Luliang Mountain area, Shanxi, China[J]. SCIENCE IN CHINA SERIES D-EARTH SCIENCES,2003,46(11):1171-1181.
APA Lu, JZ,Zhang, Q,Ouyang, Z,Li, CL,Zou, YL,&Xi, L.(2003).Geochemistry and chronology of the Jiehekou Group metamorphic basic volcanic rocks in the Luliang Mountain area, Shanxi, China.SCIENCE IN CHINA SERIES D-EARTH SCIENCES,46(11),1171-1181.
MLA Lu, JZ,et al."Geochemistry and chronology of the Jiehekou Group metamorphic basic volcanic rocks in the Luliang Mountain area, Shanxi, China".SCIENCE IN CHINA SERIES D-EARTH SCIENCES 46.11(2003):1171-1181.
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