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In situ major and trace element compositions of apatites from Luanchuan orecluster: Implications for porphyry Mo mineralization
Du, Jingguo1; Wang, Gongwen1; Jia, Lihui2
2019-12-01
Source PublicationORE GEOLOGY REVIEWS
ISSN0169-1368
Volume115Pages:13
AbstractThe effects of volatile concentrations and oxidation state of magma on the Mo mineralization potential have been explored through petrographic studies and in situ electron probe micro-analyzer (EPMA) and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) of apatites from coeval economically Mo- mineralized granite porphyry and quartz diorite, and sub-economically mineralized granite porphyry at Luanchuan orecluster. The occurrence of abundant K-feldspar xenocrysts, possibly entrained from granitic magma, in quartz diorite implying a magma mingling process. Studied apatites are fluorapatites or fluor-hydroxyapatites with decreasing OH concentrations from economically mineralized quartz diorite (0.30-0.49 apfu) through mineralized granite porphyry (0.14-0.41 apfu) to sub-economically mineralized granite porphyry (0.01-0.11 apfu). Chondrite-normalized REE patterns of all the apatites are characterized by LREE enrichment relative to MREE and HREE, and negative Eu anomaly, similar to their host magmas, indicating a melt composition control. Strontium concentration of studied apatites are probably controlled by the crystallization of plagioclase or alkali feldspar. Mineralized quartz diorite formed at a relatively reduced environment compared to other rocks, but mineralized granite porphyry and sub-economically mineralized granite porphyry formed at a similar oxidation state, based on the SO3, Eu, Ce, and Mn content variation of apatites. The OH-contents of apatites, combined with published log (H2O/HF) ratios of melt in equilibrated with biotites, reflect that economically mineralized intrusions have higher water contents than the sub-economically mineralized intrusions. In a porphyry Mo system, a high magma water content is probably a key parameter controlling Mo mineralization. Mafic magma may supply water (and heat) to ore-forming granitic magmas, enhancing their Mo mineralization potential.
KeywordApatite Mineral chemistry Water content Luanchuan orecluster Porphyry Mo system
DOI10.1016/j.oregeorev.2019.103174
Funding OrganizationChina Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordMESOZOIC MOLYBDENUM DEPOSITS ; CHINA CONSTRAINTS ; PARTITION-COEFFICIENTS ; FLUID INCLUSION ; AQUEOUS FLUIDS ; ORE DISTRICT ; CAVE PEAK ; ZIRCON ; ROCKS ; GRANITES
Language英语
Funding ProjectChina Postdoctoral Science and Foundation[2018M641430] ; National Natural Science Foundation of China[41572318]
Funding OrganizationChina Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; China Postdoctoral Science and Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeology ; Mineralogy ; Mining & Mineral Processing
WOS SubjectGeology ; Mineralogy ; Mining & Mineral Processing
WOS IDWOS:000501412500006
PublisherELSEVIER
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Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95833
Collection岩石圈演化国家重点实验室
Corresponding AuthorDu, Jingguo; Jia, Lihui
Affiliation1.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
Corresponding Author AffilicationState Key Laboratory of Lithospheric Evolution
Recommended Citation
GB/T 7714
Du, Jingguo,Wang, Gongwen,Jia, Lihui. In situ major and trace element compositions of apatites from Luanchuan orecluster: Implications for porphyry Mo mineralization[J]. ORE GEOLOGY REVIEWS,2019,115:13.
APA Du, Jingguo,Wang, Gongwen,&Jia, Lihui.(2019).In situ major and trace element compositions of apatites from Luanchuan orecluster: Implications for porphyry Mo mineralization.ORE GEOLOGY REVIEWS,115,13.
MLA Du, Jingguo,et al."In situ major and trace element compositions of apatites from Luanchuan orecluster: Implications for porphyry Mo mineralization".ORE GEOLOGY REVIEWS 115(2019):13.
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