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Lithium Isotope Analytical Methods and Implications for Rare-Metal Mineralization in Granite-Pegmatite Systems: An Overview

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Journal of earth Science 2024年

作者： Xiang-Ying Ye Bin Li Dong-Bo Tan Ke-Cheng Liu Zhi-Yong Zhu Hafiz Muhammad Siddique Yi-Lin Xiao Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological environment Monitoring (Ministry of education)， School of geosciences and Info-physics， Central South University CAS Key Laboratory of Geospace environment and department of Plasma Physics and Fusion engineering， University of Science and Technology of China institute of Geology， Chinese Academy of Geological Sciences CAS Key Laboratory of Crust-Mantle Materials and environments， School of earth and Space Sciences， University of Science and Technology of China Chinese Academy of Sciences Center of excellence in Comparative Planetology

The origin of highly-fractionated granite-pegmatite systems and their associated rare metal mineralization has been widely studied， but there is still ongoing debate. Prevailing hypotheses suggest that pegmatite formation and the associated rare metal mineralization are closely related to aqueous fluid processes. Lithium (Li) isotope analysis has been widely applied to trace granite-pegmatite evolution. This is because lithium is widely present in various minerals (e.g.， mica， tourmaline) that record the melt and fluid compositions， and lithium isotopes are sensitive to magmatic-hydrothermal processes. We briefly review the methodology of Li isotope analyses， the mechanisms of Li isotopic fractionation， and， in particular， Li isotope fractionation in granite-pegmatite system based on Li isotope data we have collected and the latest developments in Li isotope geochemistry. With the development of analytical technology， high-precision measurement of the Li content and isotopic compositions have facilitated a series of scientific breakthroughs in understanding the magmatic-hydrothermal evolution of rare-element ore deposits. Li isotope analysis on bulk mineral separates show ability to trace various hydrothermal processes (e.g. exotic or exsolved fluids). In situ Li isotope analysis methods has been enhanced by the development of new， homogeneous mineral reference materials. In situ SIMS and LA-MC-ICP-MS Li isotope measurements on minerals (e.g.， tourmaline) will likely become more important in studying the fluid–rock interactions in magmatic， metamorphic， and hydrothermal processes， as well as on pegmatite petrogenesis and rare-metal mineralization.

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燃烧源氨排放对灰霾期间北京大气铵的重要贡献

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Science Bulletin 2024年第7期69卷 978-987页

作者：吴礼彬王芃张强任红 Zongbo Shi 胡伟陈静谢巧蓉李林杰越思瑶韦莲芳宋琳琳张永根王子涵陈爽韦琬王小曼章炎麟孔少飞葛宝珠杨婷方运霆任露洁邓君俊孙业乐王自发张宏亮胡建林刘丛强 Roy M.Harrison Qi Ying 傅平青 institute of Surface-earth System Science School of Earth System ScienceTianjin UniversityTianjin 300072China department of Atmospheric and Oceanic Sciences Fudan UniversityShanghai 200438China IRDR ICoe on Risk Interconnectivity and Governance on Weather/Climate extremes Impact and Public Health Fudan UniversityShanghai 200438China Ministry of education Key Laboratory for earth System Modeling Department of Earth System ScienceTsinghua UniversityBeijing 100084China Air environmental Modeling and Pollution Controlling Key Laboratory of Sichuan Higher education institute Chengdu University of Information TechnologyChengdu 610225China Division of environmental Health&Risk Management School of GeographyEarth&Environmental SciencesUniversity of BirminghamBirmingham B152TTUK School of environmental Science and engineering Tianjin UniversityTianjin 300072China State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Forest ecology and Management Institute of Applied EcologyChinese Academy of SciencesShenyang 110164China Yale-NUIST Center on Atmospheric environment International Joint Laboratory on Climate and Environment ChangeNanjing University of Information Science and TechnologyNanjing 210044China department of Atmospheric Sciences School of Environmental Studies and Department of Environmental Science and TechnologySchool of Environmental StudiesChina University of GeosciencesWuhan 430074China department of environmental Science and engineering Fudan UniversityShanghai 200438China Collaborative Innovation Center of Atmospheric environment and equipment Technology Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution ControlNanjing University of Information Science and TechnologyNanjing 210044China department of environmental Sciences/Center of excellence in environmental Studies King Abdulaziz UniversityJeddah 21589Saudi Arabia Zachr

Aerosol ammonium(NH_(4)^(+)),mainly produced from the reactions of ammonia(NH_(3))with acids in the atmosphere,has significant impacts on air pollution,radiative forcing,and human *** the source and formation mechanism of NH_(4)^(+)can provide scientific insights into air quality ***,the sources of NH_(3)in urban areas are not well understood,and few studies focus on NH_(3)/NH_(4)^(+)at different heights within the atmospheric boundary layer,which hinders a comprehensive understanding of aerosol NH_(4)^(+).In this study,we perform both field observation and modeling studies(the Community Multiscale Air Quality,CMAQ)to investigate regional NH_(3)emission sources and vertically resolved NH_(4)^(+)formation mechanisms during the winter in *** stable nitrogen isotope analyses and CMAQ model suggest that combustion-related NH_(3)emissions,including fossil fuel sources,NH_(3)slip,and biomass burning,are important sources of aerosol NH_(4)^(+)with more than 60%contribution occurring on heavily polluted *** contrast,volatilization-related NH_(3)sources(livestock breeding,N-fertilizer application,and human waste)are dominant on clean ***-related NH_(3)is mostly local from Beijing,and biomass burning is likely an important NH_(3)source(~15%–20%)that was previously *** effective control strategies such as the two-product(e.g.,reducing both SO_(2)and NH_(3))control policy should be considered to improve air quality.

关键词： Particulate ammonium Nitrogen isotope PM2.5 The Community Multiscale Air Quality(CMAQ) Control policy

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Preliminary Prediction and evaluation on Source Rock in Low exploration Basin—A Case Study from the Northeast Depression,South Yellow Sea Basin,east China

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Journal of earth Science 2009年第5期20卷 836-847页

作者：曹强叶加仁王巍石万忠陈春峰 Key Laboratory of Tectonics and Petroleum Resources of the Ministry of education Faculty of Earth ResourcesChina University of Geosciences Geological Scientific Research institute Shengli Oil Field exploration department of China Offshore Oil Shanghai Corporation

Low exploration activity fields（e.g.,deep formation,deep water,and new exploration areas） are of great importance for petroleum *** prediction of source rocks is critical to the preliminary evaluation of low exploration activity fields,which will determine the early strategic electoral district and decision of exploration *** northeast depression is a new exploration area at the South Yellow Sea basin at *** on lots of seismic data in the study area and a few of well data in adjacent homologous depression,the early evaluation of source rock in the northeast depression was finished by comprehensively using the techniques of geological analogy,geophysical inversion and basin modeling,and an integrated methodology about preliminary evaluation of source rocks to low exploration activity fields is also *** methodology consists of three aspects：（1） prediction of the main formation of major source rocks,based on analogy analysis of seismic reflection characteristics and quality of source rocks in adjacent homologous depression;（2） method of seismic attribution to determine the thickness of source rocks;and（3） prediction of vitrinite reflectance,based on basin modeling technique to determine the maturation of source *** results suggest that the source rock of the Taizhou（泰州） Formation is the most important interval for hydrocarbon generationin the northeast depression,which is characterized as high TOC,fine OM type,huge thickness,and high *** western subdepression is the most important hydrocarbon kitchen in the northeast depression.

关键词： geological analogy seismic at-tribution source rock South Yellow Sea basin,northeast depression.

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从断裂带构造认识断层滑移习性

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国际地震动态 2011年第10期32卷 15-18页

作者： Chris Marone eliza Richardson 杨景宁（译）左玉玲（校） department of geosciences and dutton e-education institute Penn State University University Park Pennsylvania 16802 USA 不详

对于地震物理学和断裂运动研究而言,探索断裂带构造和地震行为之间的联系是至关重要的。地震代表滑动行为的一个极端;摩擦熔融和假玄武玻璃为动力破裂过程中的局部滑动提供了野外证据[1-3]。无震滑动则代表滑动行为的另一极端，在无震... 详细信息

对于地震物理学和断裂运动研究而言,探索断裂带构造和地震行为之间的联系是至关重要的。地震代表滑动行为的一个极端;摩擦熔融和假玄武玻璃为动力破裂过程中的局部滑动提供了野外证据[1-3]。无震滑动则代表滑动行为的另一极端，在无震滑动中，蠕变与断裂带内普遍存在的剪切作用有关。

关键词：断裂带构造无震滑动习性滑移断层假玄武玻璃断裂运动破裂过程

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尝试从断层带结构解读断层滑动方式

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地壳构造与地壳应力 2010年第2期 39-40页

作者： Chris Marone eliza Richardson 王艳华（翻译）张井飞（校对） department of geosciences and dutton e-education institute Penn State University University Park Pennsylvania 16802 USA 不详

地震和断层物理学的核心问题是研究断层带结构与地震滑动方式之间的联系。地震是滑动行为的一种端员模式，在断层动态破裂过程中，摩擦融化和假玄武玻璃为高度局部滑动提供了野外的证据。无震滑动是另一种端员，该过程发生的蠕变与断裂... 详细信息

地震和断层物理学的核心问题是研究断层带结构与地震滑动方式之间的联系。地震是滑动行为的一种端员模式，在断层动态破裂过程中，摩擦融化和假玄武玻璃为高度局部滑动提供了野外的证据。无震滑动是另一种端员，该过程发生的蠕变与断裂带内部常见的剪切滑动有关。然而，最近的工作表明，这种观点过于简单。实际上，构造地震不是连续模式，

关键词：断层滑动带结构解读地震滑动动态破裂过程假玄武玻璃无震滑动连续模式

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Novel green technology for wastewater treatment: Geo-material/geopolymer applications for heavy metal removal from aquatic media

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International Journal of Sediment Research 2023年第1期38卷 33-48页

作者： Nenad Grba Andre Baldermann Martin Dietzel department of Chemistry Biochemistry and Environmental Protection Faculty of Sciences University of Novi Sad institute of Applied geosciences and NAWI Graz Geocenter Graz University of Technology

The aim of this paper is to show the concise chemico-physical adsorbent performance of water purification systems utilizing geo-(e.g., allophane, clinoptilolite, and smectite) and bio-polymer materials(e.g.,chitosan or cellulose nanocomposite materials) and to propose an optimal ground-water remediation technique. The performance of geo-materials is evaluated based on the individual sorption and immobilization capacities for various priority substances and pollutants(e.g., lead, zinc, cadmium, copper,arsenic, and others), their availability, and cost-efficient use. A systematic assessment of the sorption potential of geo-materials in comparison to other available sorbents used for the removal of harmful aqueous metal ions is made through a literature review. This paper introduces novel sustainable technologies based on natural and tailored silicate-polymerized substances(geo-materials and geopolymers),and highlights their applicability in the treatment of water and solid matter contaminated by heavy metal ions. The advantages of geo-materials and geopolymers over other commercially available sorbents used for heavy metal ion removal from solution are presented through a literature review. Benefits and current challenges of geo-materials and geopolymers applications in water processing technologies and in environmental remediation are discussed, with recognition of their performance, individual sorption and immobilization capacities, availability, and cost-efficient use. The applications described here comprise:(i) the removal of heavy metal ions from contaminated water using in-situ remediation strategies;(ii) heavy metal ion immobilization through co-precipitation with silicate binders in underground stabilization and waste solidification scenarios; and(iii) a proposal for a new geo-material/geopolymer-based solidification and stabilization technology for efficient, sustainable, and simultaneous treatment of soil/sediment and groundwater at environmental hotspots.

关键词： Geo-materials Heavy metal ions environmental protection Water treatment Clay minerals Sustainability

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A study on the flowability of gas displacing water in low-permeability coal reservoir based on NMR technology

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Frontiers of earth Science 2020年第4期14卷 673-683页

作者： Minfang Yang Zhaobiao Yang Bin Sun Zhengguang Zhang Honglin Liu Junlong Zhao department of Unconventionals Research Institute of Petroleum Exploration and DevelopmentPetroChinaLangfang065007China Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process(Ministry of education) China University of Mining and TechnologyXuzhou221008China School of Resource and geosciences China University of Mining and TechnologyXuzhou221116China

Flowability of gas and water through low-permeability coal plays crucial roles in coalbed methane(CBM)recovery from coal *** better understand this phenomenon,experiments examining the displacement of water by gas under different displacement pressures were systematically carried out based on nuclear magnetic resonance(NMR)technology using low-permeability coal samples of medium-high coal rank from Yunnan and Guizhou,*** results reveal that both the residual water content(W_(r))and residual water saturation(S_(r))of coal gradually decrease as the displacement pressure(P)*** P is 0-2 MPa,the decline rates of W_(r) and S_(r) are fastest,beyond which they slow down *** samples with higher permeability exhibit higher water flowability and larger decreases in W_(r) and S_(r).Compared with medium-rank coal,high-rank coal shows weaker fluidity and a higher proportion of irreducible *** relationship between P and the cumulative displaced water content(W_(c))can be described by a Langmuir-like equation,W_(c)=WLP/(PL+P),showing an increase in W_(c) in coal with an increase in *** the low-pressure stage from 0 to 2 MPa,W_(c) increases most rapidly,while in the high-pressure stage(P>2 MPa),W_(c) tends to be *** minimum pore diameter(d′)at which water can be displaced under different displacement pressures was also *** d′value decreases as P increases in a power relationship;i.e.,d′the coal gradually decreases with the gradual increase in ***,the d′values of most of the coal samples are close to 20 nm under a P of 10 MPa.

关键词： coalbed methane low-permeability coal reservoir NMR gas displacing water flowability pore size

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Geochemical Features, Age, and Tectonic Significance of the Kekekete Mafic-ultramafic Rocks, east Kunlun Orogen, China

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Acta Geologica Sinica(english edition) 2013年第5期87卷 1319-1333页

作者： LI Ruibao PeI Xianzhi LI Zuochen SUN Yu FeNG Jianyong PeI Lei CHeN Guochao LIU Chengjun CHeN Youxin Key Laboratory of Western China’s Mineral Resources and Geological engineering Ministry of Education School of earth Science and Resources Chang’an University National Key Laboratory of Remote Sensing Information and Image Analysis Technology Beijing Research Institute of Uranium Geology institute of Geology and Geophysics CAS School of earth Science and Resources China University of Geosciences

The Kekekete mafic-ultramafic rocks are exposed in the Kekesha-Kekekete-Dawate area, which are in the eastern part of the east Kunlun Orogenic Belt. It outcrops as tectonic slices intruding tectonically in the Paleoproterozoic Baishahe Group and the Paleozoic Nachitai Group. The Kekekete mafic and ultramafic rocks is located near the central fault in east Kunlun and lithologically mainly consists of serpentinite, augite peridotite, and gabbro. The LA-ICP-MS zircon U-Pb age of the gabbro is 501±7 Ma, indicating that Kekekete mafic-ultramafic rocks formed in the Middle Cambrian. This rock assemblage is relatively poor in SiO2 and （Na20＋K20） but rich in MgO and SFeO. The chondrite-normalized Ree patterns of the gabbro dip slightly to the right; the primitive mantle and MORB-normalized spidergrams of trace elements show enrichment of large-ion lithophile elements （Cs, Rb, Ba, etc.） and no differentiation of high field strength elements. The general dominance of e- MORB features and the geochemical characteristics of OIB suggest that the Kekekete mafic- ultramafic rocks formed in an initial oceanic basin with slightly enriched mantle being featured by varying degrees of mixing of N-MORB depleted mantle and a similar-OIB-type source. From a comprehensive study of the previous data, the author believes that the tectonic history of the east Kunlun region was controlled by a geodynamic system of rifting and extension in the late stages of the Neoproterozoic to early stages of the early Paleozoic and this formed the paleo-oceanic basin or rift system now represented by the ophiolites along the central fault in east Kunlun, the Kekekete mafic- ultramafic rocks and Delisitan ophiolite.

关键词： ophiolite tectonic attribute Kekekete east Kunlun Orogeny

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Macro-and Microstructural, Textural Fabrics and Deformation Mechanism of Calcite Mylonites from Xar Moron-Changchun Dextral Shear Zone, Northeast China

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Acta Geologica Sinica(english edition) 2019年第5期93卷 1477-1499页

作者： LIANG Chenyue LIU Yongjiang ZHeNG Changqing LI Weimin Franz NeUBAUeR ZHANG Qian College of earth Sciences Jilin UniversityChangchun 130061China Key laboratory of Mineral Resources evaluation in Northeast Asia Ministry of Natural ResourcesJilin UniversityChangchun 130061China Key Lab of Submarine geosciences and Prospecting Techniques Ministry of Education Institute for Advanced Ocean StudyCollege of Marine GeosciencesOcean University of ChinaQingdaoShandong 266100China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdaoShandong 266237China department of Geography and Geology University of SalzburgSalzburgA-5020Austria

The calcite mylonites in the Xar Moron-Changchun shear zone show a significance dextral shearing characteristics. The asymmetric(σ-structure) calcite/quartz grains or aggregates, asymmetry of calcite c-axes fabric diagrams and the oblique foliation of recrystallized calcite grains correspond to a top-to-e shearing. Mineral deformation behaviors, twin morphology, C-axis eBSD fabrics, and quartz grain size-frequency diagrams demonstrate that the ductile shear zone was developed under conditions of greenschist facies, with the range of deformation temperatures from 200 to 300°C. These subgrains of host grains and surrounding recrystallized grains, strong undulose extinction, and slightly curved grain boundaries are probably results of intracrystalline deformation and dynamic recrystallization implying that the deformation took place within the dislocation-creep regime at shallow crustal levels. The calculated paleo-strain rates are between 10-7.87s-1 and 10-11.49s-1 with differential stresses of 32.63-63.94 MPa lying at the higher bound of typical strain rates in shear zones at crustal levels, and may indicate a relatively rapid deformation. The S-L-calcite tectonites have undergone a component of uplift which led to subhorizontal lifting in an already non-coaxial compressional deformation regime with a bulk pure shear-dominated general shear. This e-W large-scale dextral strike-slip movement is a consequence of the eastward extrusion of the Xing’an-Mongolian Orogenic Belt, and results from far-field forces associated with Late Triassic convergence domains after the final closure of the Paleo-Asian Ocean.

关键词： Calcite mylonites eBSD analysis finite-strain determination kinematic vorticity paleopiezometry Solonker- Xar Moron-Changchun-Yanji Suture Belt

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A comprehensive census of lake microbial diversity on a global scale

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Science China(Life Sciences) 2019年第10期62卷 1320-1331页

作者： Jian Yang Hongchen Jiang Hailiang Dong Yongqin Liu State Key Laboratory of Biogeology and environmental Geology China University of GeosciencesWuhan 430074China State Key Laboratory of Biogeology and environmental Geology China University of GeosciencesBeijing 100083China department of Geology and environmental earth Science Miami UniversityOxfordOhio 45056USA institute of Tibetan Plateau Research Chinese Academy of SciencesBeijing 100101China

Despite recent interest in microbial diversity and community structure of lakes across various spatial scales, a global biogeographic distribution pattern and its controlling factors have not been fully disclosed. Here, we compiled and analyzed 88,334,735 environmental 16S rRNA sequences from 431 lakes across a wide range of geographical distance and environmental conditions(in particular, salinity, 0–373.3 gL^–1). Our results showed that lake sediments inhabit significantly(ANOVA: Pe diverse microbial communities than lake waters. Non-metric dimensional scaling(NMDS) ordinations indicated that microbial community compositions differed distinctly among sample types(freshwater vs. saline, water vs. sediment) and geographic locations. Mantel and partial Mantel tests showed that microbial community composition in lake water was significantly(P=0.001) correlated with geographic distance, salinity, and pH. Statistical analyses based on neutral community and null models indicated that stochastic processes may play predominant roles in shaping the microbial biogeographic distribution patterns in the studied global lake waters. The dispersal-related stochasticity(e.g., homogenizing dispersal) exhibited a stronger influence on the distribution of microbial community in freshwater lakes than in saline lakes. Overall, this work expands our understanding of the impact of geographic distance, environmental conditions, and stochastic processes on microbial distribution in global lakes.

关键词： microbial biogeography lakes geographic distance environmental factors stochastic processes

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