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The Geology, Fluid Inclusions, and O-S Isotopes of the Mibei Gold Deposit, Hunan Province, Southern China

Acta Geologica Sinica(English Edition) 2024年第4期98卷 992-1006页

作者： XUE Wenhao LIANG Yayun LI Xiaofeng LI Mingyi XIE Wenbo PENG Xue XIA rui HE Hongsheng XIAO Jincheng School of Civil and Resource Engineering University of Science and Technology BeijingBeijing 100083China Geophysical and Geochemical Survey institute of Hunan Changsha 410116China New Geological Energy Exploration and Development Engineering Technology Research Center of Hunan Changsha 410116China State Key Laboratory of Geological Processes and mineral Resources China University of Geosciences(Beijing)Beijing 100083China Comprehensive Survey Command Center for Natural Resources China Geological SurveyBeijing 100055China

The Mibei gold deposit,located in the southwestern part of the Xuefengshan uplift zone,the middle section of the Jiangnan orogenic belt in southern China,has estimated gold resources of approximately seven *** deposit is primarily a quartz vein-type gold deposit,with ore bodies occurring mainly within Neoproterozoic *** main metallic minerals in the ore are pyrite,chalcopyrite,and *** this study,the petrography and microthermometry of ore-forming fluid inclusions,oxygen isotopes of gold-bearing quartz,and sulfur isotopes of goldbearing sulfides and arsenopyrite were *** types of fluid inclusions were identified:type Ⅰa three-phase inclusions comprising vapor and two phases of liquids(V_(CO_(2.)+L_(CO_(2.)+L_(H2.)),type Ⅰb two-phase liquids(L_(CO_(2.)+L_(H2.)),typeⅡ two-phase vapor-rich inclusions(V/V+L> 50%),and type Ⅲ pure liquid *** Ⅰ inclusions were heated uniformly to the liquid phase,type Ⅱ inclusions were heated uniformly to the gas phase,and type Ⅲ inclusions were heated without *** general,the temperature range of homogenization to liquid phase of fluid inclusions in the Mibei gold deposit is 2.4-2.7℃.The salinity of the inclusion ranges from 4.6 to 12.2.wt% NaCl *** δ~(18)O_(SMOW) of gold-bearing quartz varies from 16.9‰ to 17.5‰.The δ~(18)O_(H2.) of gold-bearing quartz are varied from 6.5‰ to 7.5‰.The δ~(3.)S values of gold-bearing pyrite range from 1.7‰ to 6.8‰.The δ~(3.)S values of gold-bearing arsenopy rite range from 5.6%o to 5.9‰.Theδ~(3.)S values of pyrite from wall rocks slate range from 6.4‰ to 11.6‰.This evidence implies that the ore-forming fluids of the Mibei gold deposit originated from magmatic-hydrothermal processes,mixing with minor S from the surrounding *** with the evolution of the Jiangnan orogenic belt,due to the magmatic and tectonic activities of the Xuefengshan uplift during the Caledonian period,the fault seal mechanism controlled the ore-forming p

关键词： ore-forming fluid ore genesis Mibei gold deposit Xuefengshan uplift zone Jiangnan orogenic belt

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Texture and Geochemistry of Multi-stage Hydrothermal Scheelite in the Mamupu Cu-Au-Mo(-W)Deposit,Eastern Tibet:Implications for Tungsten mineralization in the Yulong Belt

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Acta Geologica Sinica(English Edition) 2024年第3期98卷 701-716页

作者： ZHANG Xiaoxu TANG Juxing LIN Bin WANG Qin HE Liang YAN Gang SHAO rui WU Qiang DU Qiu ZHAXI Pingcuo Chengdu Center China Geological Survey(Geosciences Innovation Center of Southwest China)Chengdu 610081China MNR Key Laboratory of Metallogeny and mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China SinoProbe Laboratory Chinese Academy of Geological SciencesBeijing 100094China Earth Sciences College Chengdu University of TechnologyChengdu 610059China No.6 Geological Party Tibetan Bureau of Geology and Mineral Exploration and DevelopmentLhasa 851400China Tibet Shengyuan Mining Group Co. Ltd.Lhasa 851400China

Multistage tungsten mineralization was recently discovered in the Mamupu copper-polymetallic deposit in the southern Yulong porphyry copper belt(YPCB),*** study reports the results of cathodoluminescence,trace element and Sr isotope analyses of Mamupu scheelite samples,undertaken in order to better constrain the mechanism of W mineralization and the sources of the ore-forming *** different types of scheelite are identified in the Mamupu deposit:scheelite A(Sch A)mainly occurs in breccias during the prograde stage,scheelite B(Sch B)forms in the chlorite-epidote alteration zone in the retrograde stage,while scheelite C(Sch C)occurs in distal quartz sulfide *** extremely high Mo content and negative Eu anomaly in Sch A represent high oxygen fugacity in the prograde *** with ore-related porphyries,Sch A has a similar REE pattern,but with higher ΣREE,more depleted HREE and slightly lower(^(87)Sr/^(86)Sr)i *** features suggest that Sch A is genetically related to ore-related porphyries,but extensive interaction with carbonate surrounding rocks affects the final REE and Sr isotopic *** B shows dark(Sch B-I)and light(Sch B-II)domains under CL *** Sch B-I to Sch B-II,LREEs are gradually depleted,with MREEs being gradually *** C has the highest LREE/HREE ratio,which indicates that it inherited the geochemical characteristics of fluids after the precipitation of HREE-rich minerals,such as diopside and garnet,in the early prograde *** Mo content in Sch B and Sch C gradually decreased,indicating that the oxygen fugacity of the fluids changed from oxidative in the early stages to reductive in the later,the turbulent Eu anomaly in Sch B and Sch C indicating that the Eu anomaly in the Mamupu scheelite is not solely controlled by oxygen *** extensive interaction of magmatic-hydrothermal fluids and carbonate provides the necessary Ca^({3.)for the precipitation of scheelite in the Mamupu deposit.

关键词： scheelite geochemistry Mamupu Cu deposit Yulong porphyry copper belt eastern Tibet

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全球矿床数据库建设现状、应用与展望

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岩石矿物学杂志 2024年第1期43卷 74-88页

作者：史蕊张洪瑞中国地质科学院地质研究所北京100037

基于大数据和人工智能技术的数据驱动科学范式推动地球科学研究发生了变革。作为地球科学的重要分支,现代矿床学经历了百余年的发展,已经积累了海量的数据资料,这些数据的流通和共享是发挥其资源价值的关键。文章介绍了中国“地质云”... 详细信息

基于大数据和人工智能技术的数据驱动科学范式推动地球科学研究发生了变革。作为地球科学的重要分支,现代矿床学经历了百余年的发展,已经积累了海量的数据资料,这些数据的流通和共享是发挥其资源价值的关键。文章介绍了中国“地质云”与全球矿产资源储量动态评估数据库、澳大利亚深部地球探测计划AuScope、美国矿产资源在线空间数据库、国际经济地质学家学会(SEG)Geofacets数据库、美国标准普尔公司SNL Metals&Mining数据库等国际主要矿床数据库的情况;同时,列举了应用大数据思维和人工智能方法在区域成矿规律、矿床成因机制、矿床类型判别、资源潜力评价、战略咨询等方面取得的若干重要进展。文章提出,未来在深时数字地球国际大科学计划的平台下,整合全球海量矿床数据,建设开放、共享、统一的矿床大数据平台势在必行。

关键词：矿床数据库大数据深时数字地球

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The non-destructive analysis of ancient jade artifacts unearthed from the Liangzhu sites at Yuhang,Zhejiang

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Science China(Technological Sciences) 2010年第12期53卷 3404-3419页

作者： GAN FuXi1,3. CAO JingYan2. CHENG HuanSheng3. Gu DongHong1, rui GuoYao2. FANG XiangMing2. DONG JunQing1 & ZHAO HongXia1 1Scientific Archeology Center, Shanghai institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2.1800, China 2.Research institute of Cultural Relics and Archeology of Zhejiang, Hangzhou 3.0014, China 3.Fudan University, Shanghai 2.043., China 1. Scientific Archeology Center Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai 201800 China3. Fudan University Shanghai 200433 China2. Research Institute of Cultural Relics and Archeology of Zhejiang Hangzhou 310014 China

Samples of the jade artifacts unearthed from the Liangzhu sites at Yuhang (Fanshan,Yaoshan, Huiguanshan and Tangshan) of Zhejiang province were described. The chemical composition, phase and jade structure of a hundred and more intact samples were analyzed by the non-destructive techniques of PIXE, XRD and laser Raman spectroscopy. Results showed that the minerals of the jade artifacts mostly belonged to tremolite and tremolite-actinolite. Relationship of the civilization development in the Neolithic age and the application of tremolite type mineral in jade artifacts was discussed. The contents of rare and trace elements in tremolite jade artfacts and in mineral samples were measured for the first time. The possible mineral sources of these tremolite type jade artifacts were discussed.

关键词： Liangzhu culture non-destructive analysis ancient jade artifacts essence and source

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Ordovician-Silurian Boundary Extinction and Its Relationship to Iridium and carbon Isotope Anomalies

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Acta Geologica Sinica(English Edition) 1990年第1期64卷 81-92页

作者： Wang Xiaofeng Chai Zhifang Yichang institute of Geology and Minieral Resources, Chinese Academy of Geological Sciences, Yichang. Hubei institute of High Energy, Academia Sinica, Beijing {2. {3. Yichang institute of Geology and mineral Resources Chinese Academy of Geological Sciences Yichang Hubei China

The abundance distributions of more than 40 elements in the No. 502.Ordovician-Silurian (O/S) bounda-ry section at Fenxiang, Yichang have been studied by RNAA and INAA. The results show that in the bounda-ry bed, there is a distinctive Ir anomaly because the Ir concentration abruptly increases to 0.64 ppb.Furthermore, the Ir is positively correlated in abundance variation with some siderophile and sulphophile ele-ments. In the same bed of the O/S boundary section at Huanghuachang, Yichang, there is also a δ^(13.C excur-sion. These geochemical signs support the hypothesis that the terminal Ordovician mass extinction was proba-bly related to extraterrestrial event, and provide new evidence for defining the O/S boundary between theHirnantia-Kinnella and G. persculptus Zones.

关键词： Ordovician-Silurian Boundary Extinction and Its Relationship to Iridium and carbon Isotope Anomalies Chen Wang

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A Preliminary Review on the Metallogeny of Pb-Zn deposits in China

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Acta Geologica Sinica(English Edition) 2015年第4期89卷 1333-1358页

作者： ZHANG Changqing liu Huan WANG Denghong CHEN Yuchuan rui {2. LOU Debo WU Yue JIA Fudong CHEN Zhenghui MENG Xuyang Key Laboratory of Metallogeny and mineral Resource Assessment Institute of Mineral ResourcesCAGS Chinese Academy of Geological Sciences School of Earth Environment and Water Resources Yangtze University China University of Geosciences

Lead and zinc resources are abundant in China, with the reserves of 100 million tons ranking only second in the world. There are more than 3.00 lead-zinc mine areas nationwide. The classification of lead-zinc （Pb-Zn） deposits has been a highly controversial issue. From the standpoint of evaluating the potential of mineral resources, we construct a Pb-Zn deposit predictive type of classification scheme, and propose a Pb-Zn deposit comprehensive classification scheme （including 5 classes and 13.sub-types） that regards mineralization as the primary factor and the ore rock as secondary. According to the temporal and spatial distribution of Pb-Zn deposits, we conclude that a multi-period, multi-cycle orogenic environment is the most favorable for lead-zinc deposit growth, that the Proterozoic is the major eon for the growth of igneous-type deposits, the Paleozoic is an important development era for sedimentary Pb-Zn deposits, and the Mesozoic and Cenozoic are the heyday eras of magmatic type lead-zinc deposits. On this basis, we analyse the relationship between tectonic evolution and Pb-Zn metallogenic, and propose that the key factors determining geological mineralization are the metallogenic epoch of mineralization and tectonic environment, which determine the temporal and spatial distribution.

关键词： Deposit type spatial and temporal distribution tectonic environment Pb-Zn deposits China

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黄连解毒汤对脂多糖诱导的小鼠急性肾损伤治疗作用及机制

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中草药 2024年第3期55卷 853-860页

作者：熊致立王瑞朱晓云付彤飞李成银吴俊松王林群沈银峰巴元明湖北中医药大学中医临床学院湖北武汉430000 湖北省中医院湖北中医药大学附属医院湖北省中医药研究院湖北武汉430000

目的研究黄连解毒汤对脂多糖诱导的小鼠急性肾损伤的作用及作用机制。方法雄性C57BL/6小鼠随机分为对照组、模型组和黄连解毒汤低、中、高剂量(50、100、150 mg/kg)组,每组8只。连续ig黄连解毒汤3.d,末次给药2.h后,ip脂多糖(10 mg/kg)... 详细信息

目的研究黄连解毒汤对脂多糖诱导的小鼠急性肾损伤的作用及作用机制。方法雄性C57BL/6小鼠随机分为对照组、模型组和黄连解毒汤低、中、高剂量(50、100、150 mg/kg)组,每组8只。连续ig黄连解毒汤3.d,末次给药2.h后,ip脂多糖(10 mg/kg)建立急性肾损伤模型。检测血清中肌酐和尿素氮水平;苏木素-伊红(HE)和高碘酸-席夫(PAS)染色检测肾组织病理变化;免疫组化法检测肾组织B淋巴细胞瘤-2.B-cell lymphoma-2.Bcl-2.和Bcl-2.关X蛋白(Bcl-2.associated X protein,Bax)表达;TUNEL染色检测肾组织细胞凋亡情况;Western blotting检测肾组织磷酸酯酶与张力蛋白同源物(phosphatase and tensin homolog,PTEN)、磷脂酰肌醇3.激酶(phosphatidylinositol 3.kinase,PI3.)、蛋白激酶B(protein kinase B,Akt)、p-PI3.和p-Akt蛋白表达。结果黄连解毒汤明显降低急性肾损伤小鼠血清中尿素氮及肌酐水平(P3.、Akt蛋白表达(P3.、p-Akt蛋白表达(P3./Akt通路抑制细胞凋亡,进而缓解急性肾损伤。

关键词：黄连解毒汤急性肾损伤炎症反应细胞凋亡磷酸酯酶与张力蛋白同源物/磷脂酰肌醇3.激酶/蛋白激酶B通路咖啡酸小檗碱黄芩素

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Maternal dietary patterns associated with bone density in Chinese lactating women and infants at 6 months postpartum:a prospective study using data from 2.18-2.19

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Food Science and Human Wellness 2024年第5期13卷 2668-2676页

作者： Yalin Zhou Xiaoyu Zhu Ying Lü Runlong Zhao Hanxu Shi Wanyun Ye Zhang Wen rui Li Hanming Huang Yajun Xu Department of Nutrition and Food Hygiene School of Public HealthPeking UniversityBeijing100083China PKUHSC-China Feihe Joint Research institute of Nutrition and Healthy Lifespan Development Beijing 100083China Beijing Northern Hospital Beijing 100089China Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety Peking UniversityBeijing 100083China

This cohort study was designed to explore the relationship between maternal dietary patterns(DPs)and bone health in Chinese lactating mothers and *** recruited 150 lactating women at 1-month *** estimated bone mineral density(eBMD)of subjects’calcanei and the information on dietary intake were *** 5-month follow-up,the eBMD of mothers and their infants were measured *** analysis was applied to determine maternal *** linear models were used to evaluate the association between maternal DPs and maternal eBMD loss or infants’*** all potential covariates adjusted,Factor 2.high intake of whole grains,tubers,mixed beans,soybeans and soybean products,seaweeds,and nuts)showed a positive association with the changes of maternal eBMD(β=0.16,95%CI:0.005,0.3.0).Factor 3.high intake of soft drinks,fried foods,and puffed foods)was inversely correlated with the changes of maternal eBMD(β=-0.2.,95%CI:-0.44,0.00).The changes of maternal eBMD were positively associated with 6-month infants’eBMD(β=0.3.,95%CI:0.017,0.652..In conclusion,Factor 2.might contribute to the maintenance of eBMD in lactating women,while Factor 3.could exacerbate maternal eBMD ***,the changes of maternal eBMD presented a positive correlation with 6-month infants’eBMD.

关键词： Dietary patterns Estimated bone mineral density Lactating women

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Formation and growth of nanophase iron particles on the surface of Mercury revealed by experimental study

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Acta Geochimica 2024年第4期43卷 774-784页

作者： Ronghua Pang Yang Li Chen Li Pengfei Zhang Zhuang Guo Sizhe Zhao Han Yu Li Wang Chenxi Zhu Shuangyu Wang Kairui Tai Qinwei Zhang Yuanyun Wen rui Li Center for Lunar and Planetary Sciences Institute of GeochemistryChinese Academy of SciencesGuiyangChina University of Chinese Academy of Sciences BeijingChina Center for Excellence in Comparative Planetology Chinese Academy of SciencesHefeiChina institute of Remote Sensing and Geographical Information System School of Earth and Space SciencesPeking UniversityBeijingChina State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacaoChina Faculty of Metallurgical and Energy Engineering Kunming University of Science and TechnologyKunmingChina State Key Laboratory of High Performance Ceramics and Superfi ne Microstructures Shanghai Institute of CeramicsChinese Academy of SciencesShanghaiChina Laboratory for Space Environment and Physical Sciences Harbin Institute of TechnologyHarbinChina Research Center for Planetary Science College of Earth ScienceChengdu University of TechnologyChengduChina Key Laboratory of Planetary Sciences Purple Mountain ObservatoryChinese Academy of SciencesNanjingChina

Space weathering is a primary factor in altering the composition and spectral characteristics of surface materials on airless ***,current research on space weathering focuses mainly on the Moon and certain types of *** particular,the impacts of meteoroids and micrometeoroids,radiation from solar wind/solar flares/cosmic rays,and thermal fatigue due to temperature variations are being *** weathering produces various transformation products such as melted glass,amorphous layers,iron particles,vesicles,and solar wind *** in turn lead to soil maturation,changes in visible and near-infrared reflectance spectra(weakening of characteristic absorption peaks,decreased reflectance,increased near-infrared slope),and alterations in magnetism(related to small iron particles),collectively termed the“lunar model”of space weathering *** to the Moon and asteroids,Mercury has unique spatial environmental characteristics,including more intense meteoroid impacts and solar thermal radiation,as well as a weaker particle radiation environment due to the global distribution of its magnetic ***,the lunar model of space weathering may not apply to *** studies have extensively explored the eff ects of micrometeoroid ***,this work focuses on the eff ects of solar-wind particle radiation in global magnetic-field distribution and on the weathering transformation of surface materials on Mercury under prolonged intense solar *** the utilization of highvalence state,heavy ion implantation,and vacuum heating simulation experiments,this paper primarily investigates the weathering transformation characteristics of the major mineral components such as anorthite,pyroxene,and olivine on Mercury’s surface and compares them to the weathering transformation model of the *** experimental results indicate that ion implantation at room temperature is insufficient to generate np-Fe^(0)directly but

关键词： Mercury Space weathering Np-Fe^(0) Solar thermal radiation Solar wind

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Preliminary Study on Deep Geology of Dabie Orogenic Belt

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Continental Dynamics 1996年第2期 103-108页

作者： Dong Shuwen (Nanjing institute of Geology and mineral Resources, CAGS, Nanjing 2.0016, China)Wu Xuanzhi (institute of mineral deposits, CAGS, Beijing 10003., China)Gao rui Lu Deyuan (institute of Geology , CAGS, Beijing 10003., China)Li Yingkang (562.Co

ＰｒｅｌｉｍｉｎａｒｙＳｔｕｄｙｏｎＤｅｅｐＧｅｏｌｏｇｙｏｆＤａｂｉｅＯｒｏｇｅｎｉｃＢｅｌｔ￥ＤｏｎｇＳｈｕｗｅｎ（ＮａｎｊｉｎｇＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙａｎｄＭｉｎｅｒａｌＲｅｓｏｕｒｃｅｓ，ＣＡＧ... 详细信息

ＰｒｅｌｉｍｉｎａｒｙＳｔｕｄｙｏｎＤｅｅｐＧｅｏｌｏｇｙｏｆＤａｂｉｅＯｒｏｇｅｎｉｃＢｅｌｔ￥ＤｏｎｇＳｈｕｗｅｎ（ＮａｎｊｉｎｇＩｎｓｔｉｔｕｔｅｏｆＧｅｏｌｏｇｙａｎｄＭｉｎｅｒａｌＲｅｓｏｕｒｃｅｓ，ＣＡＧＳ，Ｎａｎｊｉｎｇ２１００１６，Ｃ...

关键词： wide-angle seismic reflection deep geology orogernic belt Dabie Mountains

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