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Petrology,Geochemistry,and Sr-Nd-S Isotopic Compositions of the Ore-Hosting Biotite Monzodiorite in the Luanjiahe Gold Deposit,Jiaodong Peninsula,China

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Journal of Earth Science 2021年第1期32卷 51-67页

作者： Xiaofeng Yao Zhizhong Cheng Zezhong Du zhenshan pang Yuquan Yang Kun Liu Development and Research Center China Geological SurveyBeijing 100037China Shandong Zhaojin Group Yantai 265400China Shandong Land and Mining Group Company Jinan 250013China

The Jiaodong Peninsula is one of the most important Au ore provinces in *** is an ongoing debate on the correlation between ore formation and magmatism in this province,because few intrusive rocks exhibit a clear association with ore deposits.A mineralized biotite monzodiorite(BM)stock,with disseminated ore,pervasive phyllic alteration,and no deformation,was found in a borehole in the footwall of the Zhaoping fault within the Luanjiahe Au deposit,which may shed light on this *** biotite monzodiorite contains explosion breccias,miarolitic cavities,skeletal and den-dritic quartz,and late-stage evolved aplite dikes,and the in-situδ34S values of the disseminated pyrite which is associated with Au mineralization are-1.7‰ to 7.3‰(mean=3.5‰),indicative of a magmatic-hydrothermal *** findings,combined with the reported age of 123 Ma,show that the intru-sion has close spatial,temporal,and geochemical relationships with Au mineralization in the *** biotite monzodiorite is metaluminous,high-K calc-alkaline and shoshonitic,with enrichment in light rare earth elements(REEs)and large-ion lithophile elements(LILEs),depletion in high-field-strength elements(HFSEs),and enriched Sr-Nd isotopic *** intrusion may be the product of par-tial melting of enriched lithospheric mantle with a small lower crustal *** hydrous,Au-bearing,enriched mantle source,and the strongly oxidized magma that was generated,created fa-vorable conditions for Au mineralization.

关键词： Jiaodong Peninsula Luanjiahe deposit intrusion-related gold deposit magmatic-hydrothermal transition

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Resource prediction and assessment based on 3D/4D big data modeling and deep integration in key ore districts of North China

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Science China Earth Sciences 2021年第9期64卷 1590-1606页

作者： Gongwen WANG Zhiqiang ZHANG Ruixi LI Junjian LI Deming SHA Qingdong ZENG zhenshan pang Dapeng LI Leilei HUANG School of Earth Sciences and Resources China University of Geosciences(Beijing)Beijing100083China Tianjin Geological Survey Center of China Geological Survey Tianjin300170China Shenyang Geological Survey Center of China Geological Survey Shenyang110000China Key Laboratory of Mineral Resources Institute of Geology and GeophysicsChinese Academy of SciencesBeijing100029China Institutions of Earth Science Chinese Academy of SciencesBeijing100029China College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing100049China Development Research Center of China Geological Survey Beijing100037China Shandong Academy of Geological Sciences Jinan250013China

The North China district has been subjected to significant research with regard to the ore-forming dynamics,processes,and quantitative forecasting of gold deposits;it accounts for the highest number of gold reserves and annual products in *** on the top-level design of geoscience theory and the method adopted by the National Key R&D Project(deep process and metallogenic mechanism of North China Craton(NCC)metallogenic system),this paper systematically collects and constructs the geoscience data(district,camp,and deposit scales)in four key gold districts of North China(Jiaojia-Sanshandao,Southern Zhaoping,Wulong,and Qingchengzi).The settings associated with the geological dynamics of gold deposits were quantitatively and synthetically analyzed,namely:NCC destruction,metallogenic events,genetic models,and exploration ***-dimensional(3D)and four-dimensional(4D)geological modeling was performed using the big data on the districts,while the district-scale 3D exploration criteria were integrated to construct a quantitative exploration *** them,FLAC3D modelling and the Geo Cube software(version 3.0)were used to implement the numerical simulation of the 3D geological models and the constraints of the fluid saturation parameters of the Jiaojia fault to reconstruct the 4D fault structure models of the Jiaojia fault(with a depth of 5000 m).Using Geo Cube3.0,multiple integration modules(general weights of evidence(Wof E),Boost Wof E,Fuzzy Wof E,Logistic Regression,Information Entropy,and Random Forest)and exploration criteria were integrated,while the C-V fractal classification of A,B and C targets in four districts was carried *** research results are summarized in the following four areas:(1)Four gold districts in the study area have more than three targets(the depth is 3000 m),and the class A,B and C targets exhibit a good spatial correlation with gold bodies that are controlled by mining engineering at depths greater than 1000 m.(2)The Boost Wof

关键词： Geoscience big data 3D/4D modeling Weights of evidence Random forest Target optimization and resources assessment Gold district in North China

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Geologic,Fluid Inclusion and Stable Isotope Constraints on Mechanisms of Ore Deposition at the Datuanshan Copper Deposit,Middle-Lower Yangtze Valley,Eastern China

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Acta Geologica Sinica(English Edition) 2015年第3期89卷 746-765页

作者： CAO Yi DU Yangsong pang zhenshan DU Yilun KOU Shaolei CHEN Linjie GAO Fuping ZHOU Guibi State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Development and Research Center of China Geological Survey No.321 Geological Team of Bureau of Geology and Mineral Resources Exploration of Anhui Province Tongling Nonferrous Metals Group Co. Ltd.

The Datuanshan deposit is one of the largest and most representative stratabound copper deposits in the Tongling area,the largest ore district in the Middle-Lower Yangtze River metallogenic *** location of the orebodies is controlled by the interlayer-slipping faults between the Triassic and Permian strata,and all the orebodies are distributed in stratiform shape around the Mesozoic quartz monzodiorite *** on field evidence and petrographic observations,four mineralization stages in the Datuanshan deposit have been identified：the skarn,early quartz-sulfide,late quartzsulfide and carbonate *** is the main copper mineral and mainly formed at the late quartz-sulfide *** inclusions at different stages were studied for petrography,microthermometry,laser Raman spectrometry and stable *** types of fluid inclusions,including three-phase fluid inclusions（type 1）,liquid-rich fluid inclusions（type 2）,vapour-rich fluid inclusions（type 3） and pure vapour fluid inclusions（type 4）,were *** minerals from the skarn,early and late quartz-sulfide stages contain all fluid inclusion types,but only type 2 fluid inclusions were observed at the carbonate *** observations suggest that most of the inclusions studied in this paper are likely *** coexistence of different types of fluid inclusions with contrasting homogenization characteristics（to the liquid and vapour phase,respectively） and similar homogenization temperatures（the modes are 440-480℃,380-400℃ and 280-320℃ for the skarn,early and late quartz-sulfide stages,respectively） in the first three stages,strongly suggests that three episodes of fluid boiling occurred during these stages,which is supported by the hydrogen isotope *** Raman spectra identified CH_4 at the skarn and early quartz-sulfide *** with other geological features,the early ore-forming fluids were inferred to be under a relatively reduced *** CO_2 component ha

关键词： Stratabound skarn deposit fluid inclusions stable isotopes Datuanshan deposit Middle-Lower Yangtze Valley

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Geochronology and Geochemistry of Early Cretaceous A-type Granites in Central-Eastern Inner Mongolia,China:Implications for Late Mesozoic Tectonic Evolution of the Southern Great Xing'an Range

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Acta Geologica Sinica(English Edition) 2023年第4期97卷 1094-1111页

作者： ZHANG Yanwen ZHANG Xiaofei CHEN Lixin pang zhenshan CHEN Hui XUE Jianling ZHOU Yi TENG Chao CHEN Guochao School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China Cores and Samples Center of Natural Resources China Geological SurveyYanjiaoHebei 065201China Development and Research Centre China Geological SurveyBeijing 100037China Mineral Exploration Technical Guidance Center Ministry of Natural ResourcesBeijing 100037China Chinese Academy of Natural Resources Economics Beijing 100035China Nanyang Institutte of Technolog NanyangHenan 473000China Hubei Key Laboratory of Resources and Eco-Environment Geology(Hubei Geological Bureau) Wuhan 430034China

The southern Great Xing'an Range is the most critical Sn-polymetallic metallogenic belt in northeast ***,the tectonic setting of the Early Cretaceous magmatic-metallogenic”flare-up“event remains *** paper presents an integrated study on the occurrence,petrology,zircon U-Pb ages,whole-rock geochemistry,and in situ zircon Hf isotopes for Wenduerchagan granites of Xi Ujimqin Banner,central-eastern Inner *** granites consist primarily of granite porphyry(with ages of 137±1 Ma and 138±1 Ma)and(porphyritic)alkali feldspar granite(with an age of 141±2 Ma),corresponding to the early Early *** are A-type granites characterized by high silicon,alkali,and TFeO/MgO contents while being depleted of Ba,Nb,Ta,Sr,P,and *** show right-dipping trend rare-earth element distribution characteristics with negative Eu anomalies(Eu/Eu^(*)=0.01-0.20)and weak heavy rare-earth element fractionation((Gd/Yb)_(N)=0.77-2.30).They demonstrate homogeneous zircon Hf isotopic compositions(positiveε_(Hf)(t)values from+5.3 to+7.1 and young two-stage Hf model ages of 851-742 Ma)and high zircon saturation temperatures(av.810℃).These geochemical characteristics indicate that Wenduerchagan granites originated from the partial melting of juvenile crust under high-temperature and low-pressure *** granites most likely formed in a post-collisional compression-extension transition regime caused by the closure of the Mongol-Okhotsk Ocean,when combined with regional *** a transition regime can probably be attributed to the upwelling of the asthenospheric mantle caused by the break-off of a subducted Mongol-Okhotsk oceanic *** asthenospheric mantle provided sufficient energy and favorable tectonic conditions for magmatism and mineralization of the Early Cretaceous.

关键词： magmatism and mineralization A-type granite post-collisional environment Early Cretaceous southern Great Xing'an Range Mongol-Okhotsk Ocean

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The mechanism of ore deposition in the Hucunnan deposit,Anhui Province,Eastern China:Evidence from chemical composition of fluid inclusions

The mechanism of ore deposition in the Hucunnan deposit,Anhu...

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第三届全国青年地质大会

作者： zhenshan pang Fuping Gao Yangsong Du Yilun Du Zhaojian Zong Development and Research Center of China Geological Survey State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences

1 Introduction The Tongling region of Anhui Province is an important Cu-Au-Fe-Mo ore district of the famous Middle-Lower Yangtze River metallogenic belt(MLYRB),and also a good example of skarn deposits in China(Chang,et al.,1991;Pan,&Dong,1999).The orebodies of the skarn deposits in Tongling are commonly distributed around Yanshanian intermediate to acidic intrusions,or occur as tabular or semi-tabular ore-

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Fluid inclusion characteristics of the Shanggong gold deposit,Eastern Qinling Orogen,China

Fluid inclusion characteristics of the Shanggong gold deposi...

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第三届全国青年地质大会

作者： Fuping Gao Yangsong Du zhenshan pang Yilun Du Chenguang Wang Jinsong Xie State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Development and Research Center of China Geological Survey No.1 Institute of Geological and Mineral Resources Survey of Henan

1 Introduction The Xiaoqinling-Xiong’ershan region(XXR)in the Qinling Mountains in central China has an indicated resource of more than 400 tonnes of gold(Mao,et al.,2002),which is second in China only to the Jiaodong gold province(Mao,et al.2002).Because of their economic importance,these deposits in the XXR have been extensively

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铜陵焦冲金矿岩浆作用过程:来自闪长玢岩的证据

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地学前缘 2016年第3期23卷 221-229页

作者：杜静国杜杨松陈林杰庞振山中国地质大学(北京)地球科学与资源学院北京100083 安徽省地质矿产勘查局321地质队安徽合肥240031 中国地质调查局发展研究中心北京100037

本文主要针对安徽铜陵焦冲金矿区的闪长玢岩进行了详细的岩相学观察和矿物电子探针分析。岩相学观察表明,岩石内发育独特的石英斑晶、斜长石斑晶及其中的角闪石包裹体和角闪石斑晶。石英斑晶呈港湾状或次圆形,由溶蚀的次圆形内核和生长... 详细信息

本文主要针对安徽铜陵焦冲金矿区的闪长玢岩进行了详细的岩相学观察和矿物电子探针分析。岩相学观察表明,岩石内发育独特的石英斑晶、斜长石斑晶及其中的角闪石包裹体和角闪石斑晶。石英斑晶呈港湾状或次圆形,由溶蚀的次圆形内核和生长边构成,在内核与边部之间有熔融包裹体产出;斜长石斑晶具明显的＂核-幔-边＂环带结构,幔部发育明显的溶蚀界面,溶蚀界面处大量熔融包裹体呈环带分布;角闪石包裹体分别包裹于斜长石斑晶的核部和幔部,后者的边部被溶蚀呈次圆形;角闪石斑晶呈长条形,包裹有细针状的磷灰石。电子探针分析结果表明,斜长石中An含量自核部至边缘呈降低趋势,幔部出现多个An峰值;而来自斜长石斑晶核部、幔部和基质中的角闪石Al2O3含量从核部至基质也逐渐下降。采用角闪石-斜长石温压计和角闪石全铝压力计,分别对斜长石斑晶核部及包裹的角闪石、斜长石斑晶幔部及包裹的角闪石和基质中共生的角闪石-斜长石微晶的结晶温度和压力进行估计,结果表明,温度为806.84~808.75、791.00~797.86和660.3~683.9℃,压力为675~706、463~487和206~212 MPa,对应的形成深度为25.52~26.70、17.50~18.40和7.79~8.02km。角闪石斑晶的结晶压力和深度为448~483MPa和16.93~18.25km,与包裹于斜长石幔部的角闪石包裹体一致。根据以上岩相学和角闪石-斜长石矿物化学分析结果,本文提出一个多重岩浆房模型：来自深部幔源的流体（透岩浆流体）将不同层位的岩浆房串联活化,活化后的中基性岩浆和花岗闪长质岩浆混合形成中性岩浆,最后中性富流体的岩浆快速上侵冷却就位于地表,同时释放大量的挥发分（含矿物质）,后期的减压排气作用可能是主要的成矿机制。

关键词：溶蚀多重岩浆房闪长玢岩焦冲金矿铜陵

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Compositional evolution for mixed aerosols containing gluconic acid and typical nitrate and the effect of multiply factors on hygroscopicity

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Journal of Environmental Sciences 2024年第5期139卷 206-216页

作者： Yue Zhu Shufeng pang Yunhong Zhang School of Chemistry and Chemical Engineering Beijing Institute of TechnologyBeijing 100081China

The aging process of atmospheric aerosols usually leads to a mixture of inorganic salts and organic compounds of anthropogenic *** organic compounds,polyhydroxy organic acids are important components,however,the study on composition and hygroscopic properties of the mixture containing inorganics and polyhydroxy organic acids is *** this study,gluconic acid,the proxy of polyhydroxy organic acids,is mixed with the representative nitrate(Mg(NO_(3))_(2),Ca(NO_(3))_(2))to form ***-FTIR and optical microscopy are employed to study the component changes and hygroscopicity as a function of relative *** relative humidity fluctuates,the FTIR-ATR spectra display that the internal mixed gluconic acid(CH_(2)(CH)_(4)(OH)_(5)COOH)and nitrate can react to release acidic gases,forming relevant gluconate and further affecting the *** specific presentation is particles cannot be recovered to their original size after the dehydration-hydration process and there will be some disparities in GF for mixed *** the gluconic acid-Ca(NO_(3))_(2)/Mg(NO_(3))_(2)mixtures with molar ratios of 1:1,higher degree of reaction resulting in the production of large amounts of gluconate should be responsible to the lower hygroscopicity compared to ZSR *** 1:2 gluconic acid-nitrate mixed systems(with higher nitrate content),the hygroscopicity of mixtures are higher than the ZSR prediction.A possible reason could be‘salt-promoting effect’on the organic fractions of the surplus inorganic salt in the *** data can improve the chemical composition list evaluation,in turn hygroscopic properties and phase state of atmospheric aerosol,and then the climate effect.

关键词： Hygroscopicity Gluconic acid Reaction ZSR simulation Size growth factors

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Real-time monitoring of oxygenation in deep brain tissue using a wireless photoelectric probe

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Science China Materials 2024年第4期67卷 1361-1362页

作者： Hao pang Qilin Hua Guozhen Shen School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100084China Institute of Flexible Electronics Beijing Institute of TechnologyBeijing 102488China

Oxygen(O2) supply to the brain is of utmost importance for human health, as cerebral hypoxia can result in irreversible brain damage. Neurodegenerative diseases, such as epilepsy, are closely associated with cerebral hypoxia [1,2]. Real-time monitoring of cerebral oxygenation holds significant value in neuroscience research and clinical diagnostics [3–10].

关键词： epilepsy cerebral diseases

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云南普朗复式岩体锆石U-Pb年龄和地球化学特征及其地质意义

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岩石学报 2009年第1期25卷 159-165页

作者：庞振山杜杨松王功文郭欣曹毅李青中国地质大学(北京) 北京100083

根据接触关系和岩石学特征将普朗复式岩体划分为三个阶段的侵入岩,即第一阶段的石英闪长玢岩,第二阶段的石英二长斑岩和第三阶段的花岗闪长斑岩。利用单颗粒锆石U-Pb法测定的早、中、晚三个阶段侵入岩的结晶年龄分别为221.0±1.0Ma、21... 详细信息

根据接触关系和岩石学特征将普朗复式岩体划分为三个阶段的侵入岩,即第一阶段的石英闪长玢岩,第二阶段的石英二长斑岩和第三阶段的花岗闪长斑岩。利用单颗粒锆石U-Pb法测定的早、中、晚三个阶段侵入岩的结晶年龄分别为221.0±1.0Ma、211.8±0.5Ma和206.3±0.7Ma。这些年龄数据结合岩石化学和锶同位素资料,表明普朗复式岩体是在印支期由壳幔混源岩浆多次涌动侵入形成的。

关键词：复式侵入岩体单颗粒锆石U-Pb年龄壳幔混源岩浆多次涌动侵入云南普朗

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