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A new 1.32 Ga Tianshui mafic sill in the Liaodong area and its relations to the Yanliao large igneous province in the northern North China Craton
Wang, Xin Ping1,2; Peng, Peng3; Wang, Chong3
2022-02-01
Source PublicationPRECAMBRIAN RESEARCH
ISSN0301-9268
Volume369Pages:18
AbstractA new 1.32 Ga Tianshui mafic sill was identified in the Liaodong area, which enlarges the scale of the Yanliao large igneous province (LIP, extending > 600 km) in the North China Craton. It intrudes concordantly into limestone layers and is overlain by Neoproterozoic strata. SIMS baddeleyite Pb-Pb dating on two coarse-grained gabbros yields weighted mean Pb-207/Pb-206 ages of 1324 +/- 2 Ma (n = 20, MSDW = 1.5) and 1326 +/- 5 Ma (n = 9, MSDW = 1.3), similar to those of mafic sills in the Yanliao LIP. The Tianshui mafic sill shows a similar E-MORB geochemical character as the mafic sills in the Yanliao LIP, including tholeiitic composition, enriched light rare earth elements (La/Yb-N = 2.45-3.77), and large ion lithophile elements, but depleted high field strength elements, positive baddeleyite epsilon Hft values of 3.59-10.96, with a peak of 6.07, and negative whole-rock epsilon Ndt values of-1.8 to-0.6, with an average of-1.3, indicative of an enriched mantle source. The host limestone layers are 800 m thick and possibly contemporaneous with the Mesoproterozoic Gaoyuzhuang Formation of the Liaoxi area. The 1.32 Ga Yanliao mafic sills underwent extensive crystallization differentiation controlled by olivine, clinopyroxene, and plagioclase. They were generated at a high primary temperature of ~1550 ?C and crystallized at ~1140 ?C at 0.24 kbar, which could be related to the mantle plume magmatism.
KeywordYanliao large igneous province Liaodong area Mesoproterozoic Mafic sill
DOI10.1016/j.precamres.2021.106535
Funding OrganizationNatural Science Foundation of China ; Natural Science Foundation of China ; Shanxi Normal University ; Shanxi Normal University ; Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Natural Science Foundation of China ; Natural Science Foundation of China ; Shanxi Normal University ; Shanxi Normal University ; Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Natural Science Foundation of China ; Natural Science Foundation of China ; Shanxi Normal University ; Shanxi Normal University ; Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Natural Science Foundation of China ; Natural Science Foundation of China ; Shanxi Normal University ; Shanxi Normal University ; Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University
WOS KeywordHF ISOTOPIC COMPOSITIONS ; PB ZIRCON GEOCHRONOLOGY ; U-PB ; JI BELT ; LIAOHE GROUP ; EASTERN BLOCK ; ANSHAN AREA ; LU-HF ; LIAONING PROVINCE ; DETRITAL ZIRCONS
Language英语
Funding ProjectNatural Science Foundation of China[NSFC 41890833] ; Shanxi Normal University[2021L271] ; Shanxi Scholarship Council of China[2021-096] ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University[2020JCYJ27]
Funding OrganizationNatural Science Foundation of China ; Natural Science Foundation of China ; Shanxi Normal University ; Shanxi Normal University ; Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Natural Science Foundation of China ; Natural Science Foundation of China ; Shanxi Normal University ; Shanxi Normal University ; Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Natural Science Foundation of China ; Natural Science Foundation of China ; Shanxi Normal University ; Shanxi Normal University ; Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Natural Science Foundation of China ; Natural Science Foundation of China ; Shanxi Normal University ; Shanxi Normal University ; Shanxi Scholarship Council of China ; Shanxi Scholarship Council of China ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University ; Modern Col-lege of Humanities and Sciences of Shanxi Normal University
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000792401900001
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/105906
Collection岩石圈演化国家重点实验室
Corresponding AuthorWang, Xin Ping
Affiliation1.Shanxi Normal Univ, Sch Geog Sci, Taiyuan 030092, Shanxi, Peoples R China
2.Sci Shanxi Normal Univ, Modern Coll Humanities & Sci, Linfen 041000, Shanxi, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xin Ping,Peng, Peng,Wang, Chong. A new 1.32 Ga Tianshui mafic sill in the Liaodong area and its relations to the Yanliao large igneous province in the northern North China Craton[J]. PRECAMBRIAN RESEARCH,2022,369:18.
APA Wang, Xin Ping,Peng, Peng,&Wang, Chong.(2022).A new 1.32 Ga Tianshui mafic sill in the Liaodong area and its relations to the Yanliao large igneous province in the northern North China Craton.PRECAMBRIAN RESEARCH,369,18.
MLA Wang, Xin Ping,et al."A new 1.32 Ga Tianshui mafic sill in the Liaodong area and its relations to the Yanliao large igneous province in the northern North China Craton".PRECAMBRIAN RESEARCH 369(2022):18.
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