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Formation of the giant Chalukou porphyry Mo deposit in northern Great Xing'an Range,NE China:Partial melting of the juvenile lower crust in intra-plate extensional environment

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Formation of the giant Chalukou porphyry Mo deposit in north...

Chemical composition of the ore and occurrence state of the elements in Jingbaoshan platinum-palladium deposit

中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： Zhen-Zhen Li Ke-Zhang Qin Guang-Ming Li Shunso Ishihara Lu-Ying Jin Guo-Xue Song Zhao-Jun Meng key laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences University of Chinese Academy of Sciences Geological Survey of Japan AIST 706 Geological Party of Heilongjiang Geoexploration Bureau for Nonferrous Metals

The Chalukou porphyry Mo deposit(2.46 Mt @ 0.087%Mo),located in the northern Great Xing’an Range,NE China,is the largest Mo deposit discovered in China so *** host rocks consist of aplite porphyry,granite porphyry and quartz porphyry,and are intruded into Lower Ordovician intermediate-felsic volcanic-sedimentary rocks and preore monzogranite and are cut by post-ore feldspar porphyry,diorite porphyry and quartz monzonite ***,we present the zircon U-Pb ages,whole-rock geochemistry,Sr-Nd isotopic and zircon Hf isotopic data for the pre-ore,syn-ore and post-ore intrusive *** Chalukou ore-forming porphyries intruded during 147-148 Ma and have high-silica,alkali-rich,metaluminous to slightly peraluminous compositions and are *** are enriched in large ion lithophile elements(e.g.K,Rb,U and Th),light REE and depleted in high-field strength elements(***,P and Ti).Depletions in Eu,Ba,Sr,Nb,Ta,P and Ti suggest that they have experienced strong fractional crystallization of plagioclase,biotite,hornblende and accessory *** pre-ore monzogranite(-172 Ma) also belongs to the high-K calc-alkaline *** fractionated REE patterns((La/Yb)N = 19.6-21.7),high values of Sr/Y(54-69) and La/Yb(29-32),are adakite-like geochemical *** post-ore rocks(-141-128 Ma) have similar geochemical characteristics with ore-forming porphyries except that quartz monzonite porphyry shows no Ba-Sr negative *** intrusive rocks have relative low initial Sr/Sr(0.705413-0.707889) and εNd(t) values(-1.28 to +0.92),positiveεHf(t) values(+ 2.4 to +10.1) and young two-stage Nd and Hf model ages(T(Nd) = 863-977 Ma,T(Hf) = 552-976 Ma).These geochemical and isotopic data are interpreted to demonstrate that the ore-forming porphyries formed by partial melting of the juvenile lower crust caused by underplating of mafic magmas in an intra-plate extensional *** pre-ore monzogranite formed by partial melting of thickened lower crust in a collisional

关键词： Chalukou porphyry Molybdenum deposit Zircon U-Pb age dating Juvenile lower crust Extensional setting Sr-Nd isotope Zircon Hf isotope

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Chinese Journal Of geochemistry 2008年第1期27卷 104-108页

作者： SONG Huanbin HE Mingqin ZHANG Shangzhong YI Fenghuang Honghe University Mengzi 661100 Yunnan China College of Resources and Environment Guizhou University Guiyang 550002 China Center laboratory of Geology and Mineral Product in Yunnan Province Kunming 650218 China

The Jingbaoshan platinum-palladium deposit is China’s largest independent PGM (platinum-group met- als) deposit so far discovered. There are eleven kinds of useful components in the ore: Pt, Pd, Os, Ir, Ru, Rh, Au, Ag, Cu, Ni, and Co. The platinum-group elements, gold and silver occur in the form of minerals in ores. twenty-five kinds of precious metal minerals have been found, of which twenty one belong to the platinum-group minerals. The minerals are very small in grain size. Copper occurs mainly as copper sulfide with a small amount of free copper oxide, and the beneficiated copper accounts for 95.21%. Nickel occurs mainly as nickel sulfide, and some nickel silicate and nickel oxide occur in the ore. The beneficiated nickel accounts for 72.03%. Cobalt occurs mainly as co- balt sulfide, and there are some cobalt oxide and other kinds of cobalt. The beneficiated cobalt accounts for 77.58%.

关键词：化合物沉积物岩石化学元素

Petrography,geochemistry and geochronology of the host porphyries and associated alteration at the Tuwu Cu deposit,NW China:a case for increased depositional efficiency by reaction with mafic hostrock?

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Petrography,geochemistry and geochronology of the host porph...

Rare earth elements(REE)and isotope composition(δ^(13)C andδ^(18)O)of manganese ores of Chiatura deposit(Georgia):features of ore formation and genesis

中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： Ping Shen Hongdi Pan Taofa Zhou Jingbin Wang key laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of Sciences College of Earth Sciences Chang'an University School of Resources and Environment Engineering Hefei University of Technology China Non-ferrous Metals Resource Geological Survey

Tuwu is the largest porphyry copper deposit discovered in the Eastern Tianshan Mountains,Xinjiang,China.A newly recognized volcanic complex in the Early Carboniferous Qi’eshan Group at Tuwu consists of basalt,andesite,and diorite *** plagiogranite porphyry was emplaced into this complex at 332.8±2.5 Ma(U-Pb zircon SIMS determination).Whole-rock element geochemistry shows that the volcanic complex and plagiogranite porphyry formed in the same island arc,although the complex was derived by partial melting of the mantle wedge and the plagiogranite porphyry by partial melting of a subducting *** diorite and the plagiogranite porphyries have both been subjected to intense hydrothermal alteration and associated mineralization,but the productive porphyry is the plagiogranite *** alteration and mineralization stages,including pre-,syn- and post-ore stages,have been *** pre-ore stage formed a barren propylitic alteration which is widespread in the volcanic *** syn-orc stage is divided into three sub-stages:Stage 1 is characterized by potassic alteration with chalcopynte + bornite + chalcocite;Stage 2 is marked by chlorite-sericite-albite alteration with chalcopyritc ± pyrite ± bornite:Stage 3 is represented by phyllic alteration with chalcopyrite + pyrite ±*** post-ore stage produced a barren argillic alteration limited to the diorite porphyry.A specific feature of the Tuwu deposit is that the productive porphyry was emplaced into a very mafic package,and reaction of the resulting fluids with the ferrous iron-rich hostroeks was a likely reason that Tuwu is the largest porphyry in the district.

关键词： Volcanic complex Porphyry Mafic hostrock Hydrothermal alteration Tuwu Xinjiang

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Acta Geochimica 2023年第4期42卷 779-801页

作者： Vladimir N.Kuleshov Andrey Yu.Bychkov Irina Yu.Nikolaeva Maria E.Tarnopolskaya Geological Institute Russian Academy of SciencesPyzhevskii Per.7MoscowRussia 119017 Lomonosov Moscow state University Leninskie Gory1MoscowRussia 119899

The rare earth elements(REE)geochemistry and the isotope(δ^(13)C,δ^(18)O)composition of manganese ores of the Chiatura(Georgia)deposit were *** of the major features of all types of manganese ores is negative cerium(Ce/Ce*_(PAAS))anomaly and the absence of europium(Eu/Eu*_(PAAS))*** oolitic manganese ores were formed in oxic shallow marine *** content and distribution of REEs(in particular Ce and Eu)in these ores are connected mainly with ferrous *** performed C-and O-isotope research in Mn-carbonates(oolitic and massive)has indicated that carbonate ores were formed by the participation of isotopic ally light CO_(2)which is a result of the oxidation of organic matter in the sediment strata by reducing environments of early diagenesis(and,partially,catagenesis)*** negative cerium anomalies in the studied carbonate ores reflect the specific REE patterns in pore waters of sediments of earlier isdiagenesis zone of the Oligocene Chiatura's *** deficiency of cerium in this zone remains debatable and requires further *** of manganese carbonates took place multistage by the input of incisional solutions of different chemistry into sea bottom waters and *** absence of europium anomaly indicates about lack of hydrothermal solution input.

关键词： REE Cerium anomaly Carbon and oxygen isotope geochemistry Oxide and carbonate manganese ores Chiatura deposit

Geochronology,geochemistry,and Implications of Aplite Dyke in the Giant Jiama Porphyry Copper System,Tibet

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地质学报:英文版 2023年第5期97卷 1406-1421页

作者： QI Jing TANG Juxing LIN Bin YANG Hairui TANG Xiaoqian TANG Pan FANG Xiang ZHANG Tingting LI Faqiao SUN Miao WANG Mengdie CUI Hao XIE Jinling School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China MNR key laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China Institute of Mineral Research China Metallurgical Geology BureauBeijing 101300China China Mining Federation of Beijing Consulting Center Beijing 100044China Southwest University of Science and Technology MianyangSichuan 621000China Chinese Academy of Geological Sciences Beijing 100037China Development and Research Center China Geological SurveyBeijing 100037China Chengdu University of Technology Chengdu 100059China Tibet University Lhasa 850000China

Jiama is a giant,high-grade porphyry copper system in the Gangdese metallogenic belt,*** intermediate-felsic porphyries intruded in this deposit,some of which are strongly associated with copper-polymetallic *** ore-bearing porphyries include monzogranite,granodiorite,and quartz diorite porphyries.A new granite aplite dyke was found in the south of *** age,genesis,and relationship with ore-related magmatism are ***,its emplacement age and petrogenesis were determined using mineralogy,zircon U-Pb dating,geochemistry,and Sr-Nd-Pb isotope *** zircon LA-ICP-MS U-Pb age of the aplite dyke is 16.66±0.21 Ma(n=14,MSWD=0.66),earlier than that of the ore-bearing porphyries(~15 Ma)in ***,the aplite exhibits high amounts of silicon(SiO_(2)=73.39%-74.74%),potassium(K_(2)O=5.12%-6.61%),aluminum(Al_(2)O_(3)=14.25%-14.69%),and light/heavy rare earth elements(LREE/HREE=12.12-16.19)as well as negative europium(δEu=0.47-0.72)and weak negative cerium anomalies(δCe=0.84-0.93).The aplite dyke is characteristic of metaluminous-peraluminous I-type granite,which is rich in large-ion lithophile elements(Rb,Ba,Th and U)and depleted in high-field-strength elements(Nb,P and Ti).The aplite dyke and ore-bearing porphyries in the Jiama deposit are the results of a partial melting of the juvenile lower crust,according to whole-rock geochemistry and Sr-Nd-Pb isotope data,but the dyke and ore-bearing porphyries were emplaced from the same magma chamber at different ***,the aplite dyke shows the composition of the early evolution stage of shallow magma in the Jiama deposit and is the product of rapid condensation and crystallization.

关键词： U-Pb age Sr-Nd-Pb isotope geochemistry aplite dyke Jiama

Timing and tectonic setting of the Sijiaying banded iron deposit in the eastern Hebei province,North China Craton:Constraints from geochemistry and SIMS zircon U-Pb dating

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Timing and tectonic setting of the Sijiaying banded iron dep...

法国比利牛斯山Trimouns滑石-绿泥石矿床地质与成因(英文)

中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： Minli Cui Lianchang Zhang Huaying Wu Yingxia Xu Wenjun Li key laboratory of Mineral Resources.Institute of Geology and Geophysics Chinese Academy of Sciences Development Research Center of China Geology Survey Institute of Mineral Resources Research China Metallurgical Geology Bureau College of Mining Engineering Hebei United University

The North China Craton(NCC).one of the oldest continental blocks in Asia,has a complicated evolutionary history with the age of the old crust up to 3.8 Ga and records the important geological events of the *** Sijiaying BIF,the largest banded iron formation located in eastern Hebei province,in the east part of NCC,records an important thermo-tectonic event;Previous studies focused on the geological description,but the timing and tectonic setting have been unclear so *** Sijiaying BIF is hosted in Neoarchean metamorphic rocks,which includes biotite-leptynite,hornblende plagioclase-gneiss and biotite *** major element contents and ratios of the host rocks,the protoliths of the hornblende plagioclase-gneiss and biotite plagioclase-gneiss are shown to be dacite,whereas those of the biotite-leptynites are sedimentary *** on geology and geochemistry of the host rocks,we infer that the Sijiaying BIF is an Algoma type *** zircon U-Pb dating shows:igneous zircons from the biotite plagioclase-gneiss and hornblende plagioclase-gneiss have U-Pb ages of 2535 ±S Ma and 2543 ± 14 Ma,respectively;zircons from the biolile-leptyuite have an age of 2537 ± 13 *** infer that the ages of 2543-2535 Ma represent the time of the Sijiaying ***-normalized REY profiles of the ore samples are characterized by LREE depletion and HREE enrichment,positive La and Eu anomalies and an average Y/Ho weight ratio of 32,indicating a mixture of submarine hydrothermal fluids and deep *** data was combined with the δO analyzed by previous researcher of the ore from individual magnetite bands to infer that the Sijiaying BIF precipitated from hydrothermal fluids discharging on the sea floor,lhe hornblende plagioclase-gneiss and biotite plagioclase-gneiss that are enriched in L1 LE and LREE and depleted in high field strength elements(HFSE) Nb,Ta and Ti,have geochemical signatures that are similar to those of island-arc volcanic *** biotite-

关键词： Banded iron formation Iron ore deposits SIMS zircon U-Pb dating Tectonic setting North China Craton

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岩石学报 2004年第4期20卷 877-886页

作者： Ph de PARSEVAL 蒋少涌 F FONTAN 王汝成 F MARTIN J FREEET UMR 5563-CNRS Laboratoire de Mecanismes de transfert en Géologie-Universite Paul Sabatier-14 Av. Edouard Belin 31400 Toulouse France. state key laboratory for Mineral deposits Research Departement of Earth Sciences Nanjing University Nanjing 210093 China UMR 5563-CNRS Laboratoire de Mecanismes de transfert en Geologie-Universite Paul Sabatier-14 Av. Edouard Belin 31400 Toulouse France. Universite de Limoges CNRS UMR 6532 'HydrASA' 123 avenue Albert Thomas 87000 Limoges France. Talc de Luzenac S. A. BP 11 09250 Luzenac France.

位于法国比利牛斯山的nimouns矿床是世界上最大的滑石-绿泥石矿床之一.对该矿床形成的条件及滑石和绿泥石矿石的含量已较清楚.它是由不同类型的岩石通过热液交代蚀变而形成的,主要包括白云岩蚀变为滑石为主的矿石和硅铝质岩石(云母片岩... 详细信息

位于法国比利牛斯山的nimouns矿床是世界上最大的滑石-绿泥石矿床之一.对该矿床形成的条件及滑石和绿泥石矿石的含量已较清楚.它是由不同类型的岩石通过热液交代蚀变而形成的,主要包括白云岩蚀变为滑石为主的矿石和硅铝质岩石(云母片岩和伟晶岩)蚀变为绿泥石为主的矿石.滑石矿石显示片理化结构(滑石片岩)或压实块状结构(块滑石).由伟晶岩蚀变而来的绿泥石矿石为呈绿色的球状矿体,而由云母片岩蚀变而来的绿泥石矿石呈块状或片理状、颜色为灰绿色和深灰色.本文对欧洲这个独一无二的滑石和绿泥石矿床的地质特征和成因进行了总结和讨论.流体包裹体研究表明成矿流体为高盐度(20 to30%***%NaCl)、中温(320℃)、压为为2.5kbars.磷钇矿和独居石的U-Pb定年结果表明,成矿年代为112～97Ma,成矿作用可能持续了16Ma以上.

关键词：滑石-绿泥石矿床热液交代过程法国Trimouns矿床

Deciphering anomalous Ag enrichment recorded by galena in Dayingezhuang Au(-Ag)deposit,Jiaodong Peninsula,Eastern China

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Transactions of Nonferrous Metals Society of China 2021年第12期31卷 3831-3846页

作者： Zhan-kun LIU Xian-cheng MAO Fan-yun WANG Lei TANG Guang-huan CHEN Jin CHEN Hao DENG key laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring(Ministry of Education) School of Geosciences and Info-PhysicsCentral South UniversityChangsha 410083China Department of Geology Lakehead UniversityThunder BayOntario P7B 5E1Canada Central South University Press Changsha 410083China Zhaojin Mining Industry Co. Ltd.Yantai 265400China

Texture,geochemistry,and in-situ Pb isotope of galena were investigated to probe the origin of anomalous Ag enrichment in the Dayingezhuang Au(-Ag)*** enrichment postdates the main Au mineralization and occurs in the south of the Dayingezhuang *** is primarily associated with galena and the exsolution of Ag-rich sulfosalts(e.g.,matildite)in distal vein-ores related to steeply dipping brittle ***-rich galena is characterized by the least radiogenic Pb isotope signature(^(206)Pb/^(204)Pb 17.195–17.258 and ^(208)Pb/^(204)Pb 37.706–37.793),possibly indicating a metasomatized lithospheric mantle or modified lower crustal source for Pb and *** of these mafic and ultramafic source regions have been previously suggested as Au reservoirs for other Jiaodong Au deposits,implying that the metal reservoir has only a weak control on the uneven *** the Ag-enrichment areas are located in the footwalls of both the Dayingezhuang and Zhaoping faults,the enrichment was most likely dominated by local rotational stress during coeval movements of the two faults in a NE–SW compression and NW−SE extension *** work highlights the shallow-crust structural deformation responsible for controlling the flow of late ore-forming fluid resulting in local anomalous metal enrichment.

关键词： galena lead isotope silver Dayingezhuang deposit Jiaodong Peninsula

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碱交代型铀矿地质地球化学特征及成矿规律

世界核地质科学 2023年第2期40卷 133-151页

作者：钟军李子颖蔡煜琦虞航 Serhii Bondarenko 林陈雨曹玉召 Volodymyr Belskyy 核工业北京地质研究院中核集团铀资源勘查与评价技术重点实验室北京100029 M.P.Semenenko Institute of geochemistry Mineralogy and Ore FormationNational Academy of Science of UkrainePalladina Avenue3403680 KyivUkraine 北京科技大学土木与资源工程学院北京100083 新疆大学地质与矿业工程学院新疆乌鲁木齐830047

碱交代型铀矿床是一类低品位、大吨位的重要铀矿床类型,在国际原子能机构的15种铀矿分类中位列第四,具有重要的经济价值和研究意义。通过梳理总结世界主要超大型碱交代型铀矿区/矿床相关资料,较为系统地介绍了乌克兰地盾中部铀矿省、巴... 详细信息

碱交代型铀矿床是一类低品位、大吨位的重要铀矿床类型,在国际原子能机构的15种铀矿分类中位列第四,具有重要的经济价值和研究意义。通过梳理总结世界主要超大型碱交代型铀矿区/矿床相关资料,较为系统地介绍了乌克兰地盾中部铀矿省、巴西拉戈雷尔矿区、澳大利亚艾萨山矿区、俄罗斯艾尔肯矿区和加拿大中央成矿带内碱交代型铀矿区/床地质地球化学特征;从成矿时代与构造背景、成矿特征共性及差异等多个方面总结了碱交代型铀成矿规律,初步提出该类矿床成因上是一类与造山运动相关的热液型矿床,同一成矿系统内既可发育早期中高温铀矿化,也可有晚期低温铀矿化形成;总结了该类矿床在构造、蚀变、特征矿物组合、物探异常和水化学异常等5方面的找矿标志,最后概略展望了我国碱交代型铀矿找矿方向,以期为我国碱交代型铀矿勘查评价提供有益借鉴,推动国内碱交代型铀矿的找矿新突破。

关键词：碱交代型热液铀矿成矿特征成矿规律找矿标志造山作用