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学者姓名：徐净
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Abstract ：
Iron, Cu, Pb-Zn, and W-Mo skarn deposits occur in the Gangdese metallogenic belt, Tibet. A lack of precise age constraints for mineralization hinders understanding of the processes contributing to skarn mineralization, particularly identification of the causative intrusions. In this study, new garnet U-Pb geochronological data are provided for the Qiagong (Fe) and Jiaduobule (Fe-Cu) skarns. We place particular emphasis on skarn garnet mineralogy, using scanning electron microscopy (SEM), electron probe microanalysis (EPMA), and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), to characterize garnet textures, compositions, and U-Pb isotope systematics. All garnets studied belong to the grossular-andradite series and display oscillatory compositional zoning (And 100 Gr 0 to And 20 Gr 80 ). Andradite-dominated garnet features a chondrite-normalized REE fractionation pattern exhibiting enrichment in LREE relative to HREE and a positive Eu anomaly, whereas grossular-dominated garnet displays relative LREE depletion and a marked flat HREE fractionation trend. Ore-forming elements, including Sn, W, As, and U, are detected at concentrations up to several hundreds of ppm in the same garnets. Concentrations of W and As are higher in andradite and correlate positively with one another. The correlation between U, Sn and the major oxide composition of garnet is insignificant, potentially resulting from the changing valence states of these elements under different redox conditions. Together with previously published and limited new data for the Gebunongba (Fe), Ri'a (Cu), and Hahaigang (W-Mo) skarns, the new garnet U-Pb age data indicate that the major Fe, Pb-Zn, and W-Mo mineralization event in the Gangdese metallogenic belt took place between 65 Ma and 50 Ma, with marked peaks at - 65 Ma and - 53 Ma. Partial melting of a crustal-dominated source due to the slab rollback (-65 Ma) and break off (-53 Ma) of Yarlug-Zangbo Tethyan Ocean and subsequent asthenosphere upwelling induced this regional event during the Paleogene to early Eocene. A less common but regionally widespread Cu (+/- Au) mineralization event in the same belt formed during the Late Cretaceous (-85 Ma) and may have resulted from the coupled influence of the northward subduction of the Yarlug-Zangbo Tethyan Ocean and the southward subduction of the Bangong-Nujiang Tethyan Ocean. This contribution highlights the potential significance of the Late Cretaceous Cu(+/- Au) event and hence the prospectivity of the belt for both skarn and porphyry systems. More broadly, our findings carry implications for Neo-Tethyan metallogeny in the region extending from southwestern China to eastern Europe during the Late Cretaceous. (c) 2024 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
Keyword ：
Gangdese belt Gangdese belt Garnet Garnet LA-ICP-MS LA-ICP-MS Skarn Skarn Tibet Tibet U-Pb geochronology U-Pb geochronology
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| GB/T 7714 | Xu, Jing , Li, Jiadai , Cook, Nigel J. et al. Redefining timing, genesis and geodynamic setting of polymetallic skarn mineralization, Gangdese belt, Tibet, from LA-ICP-MS garnet U-Pb geochronology [J]. | GONDWANA RESEARCH , 2024 , 132 : 113-135 . |
| MLA | Xu, Jing et al. "Redefining timing, genesis and geodynamic setting of polymetallic skarn mineralization, Gangdese belt, Tibet, from LA-ICP-MS garnet U-Pb geochronology" . | GONDWANA RESEARCH 132 (2024) : 113-135 . |
| APA | Xu, Jing , Li, Jiadai , Cook, Nigel J. , Ciobanu, Cristiana L. , Wu, Shitou , Wade, Benjamin P. et al. Redefining timing, genesis and geodynamic setting of polymetallic skarn mineralization, Gangdese belt, Tibet, from LA-ICP-MS garnet U-Pb geochronology . | GONDWANA RESEARCH , 2024 , 132 , 113-135 . |
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In recent years, a substantial body of research has demonstrated the close relationship between the built environment and urban nighttime vitality. While scholars have established slightly varied evaluation systems for the built environment, most have utilized the open-source nighttime light (NTL) data (2012 similar to ) from the Visible Infrared Imaging Radiometer Suite (VIIRS) sensor on the Suomi National Polar-orbiting Partnership (NPP) Satellite to characterize nighttime vitality. However, with the release of the high spatial resolution NTL data from Glimmer Imager for Urbanization (GIU) sensor on the Sustainable Development Goals Satellite 1 (SDGSAT-1) by the Chinese Academy of Sciences (CAS), more options are now available for indicating nighttime vitality. Yet, no studies have so far measured the representational capability of this new NTL data. In this study, we selected Shanghai, one of the most urbanized cities in Asia, as our research area. We utilized both GIU NTL data and VIIRS NTL data to represent nighttime vitality and collected multidimensional geospatial big data as indicators of the built environment. Various regression models were employed to explore the differences in explanatory power when using different NTL data. To obtain more reliable conclusions, we have also divided the study area according to urban functional zone categories and conducted experiments on both the overall scale (entire study area) and local scale (different urban functional zones). The results showed that regression models using GIU NTL data had higher R-2 values both at overall scale(0.529 > 0.268) and local scale (0.704 > 0.641, 0.701 > 0.408, 0.537 > 0.512, 0.674 > 0.589), indicating stronger explanatory power of GIU NTL data. Furthermore, we found that the use of GIU NTL data revealed an amplification effect, where the impact of certain representative built environment factors (such as road density, building height, and vegetation coverage) on nighttime vitality was magnified, demonstrating more pronounced spatial heterogeneity. Our study investigated the performance of the new open-source SDGSAT1/GIU NTL data in representing nighttime vitality and shows its potential application in research on the relationship between the built environment and nighttime vitality. Additionally, our study also reveals the differences in the impact of the built environment on nighttime vitality across different urban functional zones. All these results will provide more valuable references for city managers aspiring to enhance the nighttime vitality and help them to make more rational planning plans.
Keyword ：
Built environment Built environment GWR GWR Nighttime light data Nighttime light data Nighttime vitality Nighttime vitality SDGSAT SDGSAT
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| GB/T 7714 | Xie, Qiyuan , Cai, Chenfan , Jiang, Yichen et al. Investigating the performance of SDGSAT-1/GIU and NPP/VIIRS nighttime light data in representing nighttime vitality and its relationship with the built environment: A comparative study in Shanghai, China [J]. | ECOLOGICAL INDICATORS , 2024 , 160 . |
| MLA | Xie, Qiyuan et al. "Investigating the performance of SDGSAT-1/GIU and NPP/VIIRS nighttime light data in representing nighttime vitality and its relationship with the built environment: A comparative study in Shanghai, China" . | ECOLOGICAL INDICATORS 160 (2024) . |
| APA | Xie, Qiyuan , Cai, Chenfan , Jiang, Yichen , Zhang, Hongyu , Wu, Zhijie , Xu, Jing . Investigating the performance of SDGSAT-1/GIU and NPP/VIIRS nighttime light data in representing nighttime vitality and its relationship with the built environment: A comparative study in Shanghai, China . | ECOLOGICAL INDICATORS , 2024 , 160 . |
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Most high-grade U ores are mined from quartz veins hosted in granites. The veins formed at shallow depths during episodic hydrothermal activity, however, the evolution of multiple stage fluids is not well constrained. In this study, we collected 56 quartz samples from the world-class, granite-related, Zhuguangshan U district (>17,000 t U from seven deposits) in southern China. Their textures and compositions were analyzed using scanning electron microscope cathodoluminescence (SEM-CL, n = 98) and laser ablation-induction coupled plasma-mass spectrometry (LA–ICP–MS, n = 643). Four types of quartz were identified, including magmatic quartz, early hydrothermal euhedral quartz, ore stage hydrothermal quartz (U-rich), and late hydrothermal quartz. New quartz textures and chemical compositions show that the transition of early hydrothermal quartz from the magmatic to hydrothermal stages is discontinuous, unlike the continuous trend observed in most magmatic-hydrothermal systems. Ore stage quartz is CL dark (with a peak at 650 nm), occurs as rims on early barren quartz, and has high contents of Mn, Al, and Sb. Altered textures of magmatic quartz developed through fluid-rock reactions at low temperatures, while rimmed textures of hydrothermal quartz formed during subsequent late-stage U-bearing fluid events, which played a crucial role in U mineralization. Quartz in the Zhuguangshan U district has distinct features compared to other magmatic-hydrothermal systems that can guide exploration for high-grade ore in this, and perhaps other, granite-related U systems. © 2024 The Author(s)
Keyword ：
Biogeochemistry Biogeochemistry Granite Granite Laser ablation Laser ablation Manganese deposits Manganese deposits Phosphorus Phosphorus Quartz Quartz Surface segregation Surface segregation Uranium deposits Uranium deposits
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| GB/T 7714 | Gao, Shen , Wang, Yongjian , Zou, Xinyu et al. Fluid overprints and mineralization of the Zhuguangshan granite-related U district in China: Recorded by cathodoluminescence textures and chemistry of quartz [J]. | Ore Geology Reviews , 2024 , 173 . |
| MLA | Gao, Shen et al. "Fluid overprints and mineralization of the Zhuguangshan granite-related U district in China: Recorded by cathodoluminescence textures and chemistry of quartz" . | Ore Geology Reviews 173 (2024) . |
| APA | Gao, Shen , Wang, Yongjian , Zou, Xinyu , Vinis, Edward L. , Huang, Liangliang , Tao, Yi et al. Fluid overprints and mineralization of the Zhuguangshan granite-related U district in China: Recorded by cathodoluminescence textures and chemistry of quartz . | Ore Geology Reviews , 2024 , 173 . |
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传统观点认为,铟常在锡多金属矿床中富集。但近年来发现,一些与花岗岩有关的贫锡多金属矿床中,铟也能够富集到一定程度。不可否认的是,无论在贫锡还是富锡的矿床中,铟的富集均与花岗质岩浆活动密切相关。然而,目前对于岩浆演化过程中控制In超常富集的因素尚不清楚。在花岗岩中,黑云母是Sn和In的重要载体矿物,其化学成分也可以有效反映岩浆成因及成岩物理化学条件。栾川矿集区的赤土店矿床为贫锡富铟的岩浆热液铅锌银矿床,其矿化与燕山期鱼库-石宝沟花岗岩关系密切。本文以鱼库-石宝沟花岗岩作为贫锡花岗岩的代表,对岩体中的黑云母开展了详细的矿物地球化学研究,并与华南典型锡铟矿化花岗岩中的黑云母进行对比。结果表明,鱼库-石宝沟花岗岩中的黑云母为镁质黑云母,华南锡铟矿化花岗岩中的黑云母为铁质黑云母-铁叶云母。且鱼库-石宝沟花岗岩中的黑云母具有较低的Sn、In含量,指示该花岗质岩浆贫锡和铟,而华南锡铟矿化花岗岩岩浆源区本身就富锡和铟。与鱼库-石宝沟花岗岩相比,华南锡铟矿化花岗岩起源于变沉积岩的部分熔融,且具有高温、低氧逸度、高挥发分的特征,这些物理化学条件对铟矿化有重要控制作用。而贫锡铟的鱼库-石宝沟花岗岩并不具备这些有利于铟矿化的条件,与之相关的矿床中之所以出现铟的富集,可能与后期地质事件使矿体中的In元素发生活化和再富集有关。
Keyword ：
In的富集机制 In的富集机制 栾川矿集区 栾川矿集区 矿物地球化学 矿物地球化学 鱼库-宝沟岩体 鱼库-宝沟岩体 黑云母 黑云母
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| GB/T 7714 | 陈程 , 韩江伟 , 徐净 et al. 花岗岩中黑云母地球化学特征对铟矿化的启示:以栾川矿集区鱼库-石宝沟岩体为例 [J]. | 大地构造与成矿学 , 2024 , 48 (04) : 754-770 . |
| MLA | 陈程 et al. "花岗岩中黑云母地球化学特征对铟矿化的启示:以栾川矿集区鱼库-石宝沟岩体为例" . | 大地构造与成矿学 48 . 04 (2024) : 754-770 . |
| APA | 陈程 , 韩江伟 , 徐净 , 赵太平 . 花岗岩中黑云母地球化学特征对铟矿化的启示:以栾川矿集区鱼库-石宝沟岩体为例 . | 大地构造与成矿学 , 2024 , 48 (04) , 754-770 . |
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Mineral assemblages containing Cu-Bi sulfosalts, Bi chalcogenides, and Ag-(Au) tellurides have been identified in the mid-Miocene Zhibula Cu skarn deposit, Gangdese Belt, southern Tibet. Different mineral assemblages from three locations in the deposit, including proximal massive garnet skarn, proximal retrogressed pyroxene-dominant skarn in contact with marble, and distal banded garnet-pyroxene skarn hosted in marble, are studied to constrain the evolution of the mineralization. Hypogene bornite contains elevated Bi (mean 6.73 wt.%) and co-exists in proximal andradite skarn with a second bornite with far lower Bi content, carrollite, Au-Ag tellurides (hessite, petzite), and wittichenite. This assemblage indicates formation at relatively high temperatures (>400 degrees C) and high f(S2) and f(Te2) during prograde-stage mineralization. Assemblages of Bi sulfosalts (wittichenite, aikinite, kupc & iacute;kite, and paderaite) and bismuth chalcogenides (e.g., tetradymite) in proximal pyroxene skarn are also indicative of formation at relatively high temperatures, but at relatively lower f(Te2) and f(S2) conditions. Within the reduced distal skarn (chalcopyrite-pyrrhotite-bearing) in marble, cobalt, and nickel occur as discrete minerals: cobaltite, melonite and cobaltic pentlandite. The trace ore mineral signature of the Zhibula skarn and the distributions of precious and critical trace elements such as Ag, Au, Co, Te, Se, and Bi support an evolving magmatic-hydrothermal system in which different parts of the deposit each define ore formation at distinct local physicochemical conditions. This is the first report of kupc & iacute;kite and paderaite from a Chinese location. Their compositions are comparable to other occurrences, but conspicuously, they do not form nanoscale intergrowths with one another.
Keyword ：
Au-Ag tellurides Au-Ag tellurides Bi chalcogenides Bi chalcogenides Cu-Bi sulfosalts Cu-Bi sulfosalts ore mineralogy ore mineralogy Tibet Tibet Zhibula Cu skarn Zhibula Cu skarn
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| GB/T 7714 | Xu, Jing , Ciobanu, Cristiana Liana , Cook, Nigel John et al. Constraints on Ore Genesis from Trace Ore Mineralogy: A New Occurrence of Kupcikite and Paděraite from the Zhibula Cu Skarn Deposit, Southern Tibet [J]. | MINERALS , 2024 , 14 (5) . |
| MLA | Xu, Jing et al. "Constraints on Ore Genesis from Trace Ore Mineralogy: A New Occurrence of Kupcikite and Paděraite from the Zhibula Cu Skarn Deposit, Southern Tibet" . | MINERALS 14 . 5 (2024) . |
| APA | Xu, Jing , Ciobanu, Cristiana Liana , Cook, Nigel John , Gao, Shen , Zhao, Taiping , Jiang, Jichen . Constraints on Ore Genesis from Trace Ore Mineralogy: A New Occurrence of Kupcikite and Paděraite from the Zhibula Cu Skarn Deposit, Southern Tibet . | MINERALS , 2024 , 14 (5) . |
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Porphyry copper systems contain porphyry Cu, skarn, carbonate-replacement and epithermal deposits, and presently supply nearly all the Te and Se, and have the potential to produce Co as by-product in the future. However, few studies have investigated the distribution of Co, Te, and Se in the specific porphyry-skarn deposit. Detailed mineralogical and geochemical analyses were conducted to investigate the distribution of Co, Te, and Se across porphyry, skarn, and carbonate-replacement ore types in the Tonglvshan porphyry-skarn Cu-Fe-Au deposit, Eastern China. The early sulfide stage in three ore types is characterized by Co-bearing pyrite (Py1a, Co up to 1.3 wt%) + droplet-like tetradymite +/- hessite +/- cattierite. The texture transition from coarse-grained, porefree to porous Py1a in porphyry and skarn type ores suggests a shift from stable physico-chemical conditions to gentle fluid boiling, resulting in the precipitation of Co- and Te-bearing minerals. In contrast, fine-grained euhedral Py1a in carbonate-replacement type ores implies rapid cooling from high-temperature fluid interaction with marble. The late sulfide stage, which only occurs in skarn and carbonate-replacement type ores, is characterized by Corich pyrite (Py2) + carrollite + hessite + Bi-sulfosalts. In skarn type ores, tetradymite-kawazulite solid solution (TKSS) + hessite + native Te + naumannite reflects intense boiling, leading to an increase in fO2 and pH that precipitates Py2b (Co up to 19.2 wt%) and carrollite, while Te and Se may precipitate through vapor phase condensation. Conversely, the presence of fine-grained carrollite, zoned Py2a, sphalerite, and galena in carbonate-replacement type ore suggests that rapid cooling and increasing pH, resulting from fluid mixing, played a significant role in the precipitation Co and Te. Furthermore, the porous texture resulting from coupled dissolution-reprecipitation (CDR) during the late sulfide stage also provided favorable conditions for the formation of micro-nano sized critical metal particles.
Keyword ：
Cobalt Cobalt Critical metal Critical metal Porphyry-skarn deposit Porphyry-skarn deposit Selenium Selenium Tellurium Tellurium Tonglvshan Tonglvshan
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| GB/T 7714 | Wu, Xiaolin , Xie, Guiqing , Xu, Jing et al. Distribution of Co, Te, Se in porphyry copper systems: A case study of the Tonglvshan deposit, Eastern China [J]. | ORE GEOLOGY REVIEWS , 2024 , 174 . |
| MLA | Wu, Xiaolin et al. "Distribution of Co, Te, Se in porphyry copper systems: A case study of the Tonglvshan deposit, Eastern China" . | ORE GEOLOGY REVIEWS 174 (2024) . |
| APA | Wu, Xiaolin , Xie, Guiqing , Xu, Jing , Voudouris, Panagiotis , Liu, Wenyuan . Distribution of Co, Te, Se in porphyry copper systems: A case study of the Tonglvshan deposit, Eastern China . | ORE GEOLOGY REVIEWS , 2024 , 174 . |
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江西省宜丰县甘坊地区是一个重要的稀有金属成矿区，目前在甘坊岩体内发现了一系列锂铷稀有多金属矿床（点），但其成矿机制尚不明确。选择甘坊岩体内洞上花岗岩作为研究对象，采用电子探针技术对多种花岗岩中的长石和云母类矿物进行了精细的结构和成分分析。结果表明，云母类矿物是铷的主要载体（Rb_2O <1.07%），长石类矿物中Rb含量低（Rb_2O <0.11%），尤其是在钠长石中Rb的含量几乎为0。含铷云母主要是白云母花岗岩、伟晶岩和细晶岩中的多硅白云母-铁锂云母类，其中铷可能主要通过与钠双置换云母结构中的层间钾离子存在。矿物结构特征显示，洞上花岗岩经历了明显的岩浆结晶分异和流体交代作用。结晶分异作用可能是洞上花岗岩Rb富集成矿的关键机制，而后期流体交代蚀变过程对铷的聚集作用有限。结合前人研究成果，笔者认为甘坊地区具有较好的锂、铷等稀有金属成矿潜力，后续的找矿勘查应注重与早白垩世—晚侏罗世（140～150Ma）高分异花岗岩相关的锂、铷等稀有金属矿床的找矿工作。
Keyword ：
江西 江西 洞上花岗岩 洞上花岗岩 甘坊岩体 甘坊岩体 矿产勘查工程 矿产勘查工程 稀有金属 稀有金属 花岗岩 花岗岩 铷 铷
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| GB/T 7714 | 姜军胜 , 郭欣然 , 徐净 et al. 江西甘坊洞上稀有金属花岗岩中铷矿化特征及成因机制 [J]. | 地质通报 , 2024 , 43 (01) : 86-100 . |
| MLA | 姜军胜 et al. "江西甘坊洞上稀有金属花岗岩中铷矿化特征及成因机制" . | 地质通报 43 . 01 (2024) : 86-100 . |
| APA | 姜军胜 , 郭欣然 , 徐净 , 田立明 , 熊光强 , 王力圆 et al. 江西甘坊洞上稀有金属花岗岩中铷矿化特征及成因机制 . | 地质通报 , 2024 , 43 (01) , 86-100 . |
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The Ganfang district in the Yifeng County, Jiangxi Province is an important rare metalmetallogenic area. A series of Li-Rb rare metal deposits (mineralization) have been discovered in the Ganfang intrusions, while the mineralization mechanism of rare metals is not clear yet. The detailed mineralogy texture and composition of feldspars and micas from the Dongshang granite have been analyzed by electron microprobe analysis. The results show that micas are the main carriers of Rb (Rb2O <1.07%), and the contents of Rb in feldspars are lower (Rb2O <0.11%), particularly in albite. The Rb-bearing micas are mainly phengite to zinnwaldite from muscovite granite, pegmatite, and granitic aplite. The substituted mechanism of Rb in micas is mainly coupled with Na for interlayer cation of K. The mineral textures record both magma crystallization differentiation and fluid metasomatism for the Dongshang granites, however, the former was the key mechanism of the Rb enrichment, while the later has less role on the accumulation of Rb in granites. Together with previous publications, this paper concluded that the Ganfang intrusions have a good metallogenic potential of rare metals, and the subsequent prospecting should focus on the Li, Rb, and other rare metals related to the Early Cretaceous to Late Jurassic (140~150 Ma) highly differentiated granites. © 2024 China Geological Survey. All rights reserved.
Keyword ：
Dongshang granite Dongshang granite Ganfang intrusions Ganfang intrusions granite granite Jiangxi Province Jiangxi Province mineral exploration engineering mineral exploration engineering rare metals rare metals Rb Rb
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| GB/T 7714 | Jiang, J. , Guo, X. , Xu, J. et al. Genesis of Rb mineralization of the Dongshang rare metal granite in Jiangxi Province; [江 西 甘 坊 洞 上 稀 有 金 属 花 岗 岩 中 铷 矿 化 特 征 及 成因机制] [J]. | Geological Bulletin of China , 2024 , 43 (1) : 86-100 . |
| MLA | Jiang, J. et al. "Genesis of Rb mineralization of the Dongshang rare metal granite in Jiangxi Province; [江 西 甘 坊 洞 上 稀 有 金 属 花 岗 岩 中 铷 矿 化 特 征 及 成因机制]" . | Geological Bulletin of China 43 . 1 (2024) : 86-100 . |
| APA | Jiang, J. , Guo, X. , Xu, J. , Tian, L. , Xiong, G. , Wang, L. et al. Genesis of Rb mineralization of the Dongshang rare metal granite in Jiangxi Province; [江 西 甘 坊 洞 上 稀 有 金 属 花 岗 岩 中 铷 矿 化 特 征 及 成因机制] . | Geological Bulletin of China , 2024 , 43 (1) , 86-100 . |
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内容提要:铷的成矿与稀有金属花岗岩密切相关。由于稀有金属花岗岩中普遍存在晚阶段热液蚀变,很难厘清岩浆过程与热液过程,稀有金属成矿起主导作用的是岩浆分异作用,还是热液交代作用,目前的认识尚不清晰。江西甘坊岩体是一个重要的稀有金属成矿区,当前在甘坊岩体内发现了一系列花岗岩型和细晶岩脉型锂铷稀有多金属矿床(点),其稀有金属成矿机制仍不明确。本文选择甘坊岩体内的白果、大港、楠木坑花岗岩型铷矿和富华、同安细晶岩型铷矿为研究对象,采用矿物自动扫描系统、电子探针、LA-ICP-MS等方法对多种花岗岩中的长石类和云母类矿物进行精细结构和成分分析。结果表明:云母类矿物是铷的主要载体(Rb=1683×10~(-6)～12047×10~(-6)),长石类矿物中铷含量低,其中钾长石铷含量为1683×10~(-6)～4051×10~(-6),而钠长石几乎不含铷(1.82×10~(-6)～89.94×10~(-6))。富铷锂的云母由白云母经锂多硅白云母和铁锂云母向锂云母转变,其中锂主要通过2Li~++~(Ⅳ)Si~(4+)?~(Ⅵ)Al~(3+)+~(Ⅵ)Al~(3+)+□和Li~++Fe~(2+)?~(Ⅵ)Al~(3+)+□,铷主要以Rb~+/Na~+/Cs~+?K~+的方式进入云母。矿物结构和成分特征显示,甘坊岩体中铷、锂等稀有金属的富集与岩浆分异作用有关,结晶分异作用可能是晚阶段熔体中铷、锂等稀有金属富集的关键,而流体交代作用对稀有金属的富集作用不明显。
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富集机制 富集机制 江西 江西 甘坊岩体 甘坊岩体 稀有金属 稀有金属 花岗岩 花岗岩 铷 铷
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| GB/T 7714 | 徐净 , 侯文达 , 王力圆 et al. 稀有金属花岗岩结晶分异过程中铷的富集与成矿:来自江西甘坊岩体的矿物学证据 [J]. | 地质学报 , 2023 , 97 (11) : 3766-3792 . |
| MLA | 徐净 et al. "稀有金属花岗岩结晶分异过程中铷的富集与成矿:来自江西甘坊岩体的矿物学证据" . | 地质学报 97 . 11 (2023) : 3766-3792 . |
| APA | 徐净 , 侯文达 , 王力圆 , 赵太平 , 陈素余 , 田立明 . 稀有金属花岗岩结晶分异过程中铷的富集与成矿:来自江西甘坊岩体的矿物学证据 . | 地质学报 , 2023 , 97 (11) , 3766-3792 . |
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The Rb mineralization is associated -with rare metal granites. However, -widespread hydrothermal alteration in the late evolution of rare metal granites makes it difficult to distinguish the magmatic process from the hydrothermal process. It is still unclear whether the rare metal mineralization is dominated by magmatic differentiation or hydrothermal metasomatism. The Ganfang intrusion in the Jiangxi Province is an important rare metal metallogenic area, where a series of Li-Rb rare metal deposits (mineralization) have been discovered, and the mineralization mechanism of rare metals is not yet clear. This paper takes both granite-type Rb (Baiguo, Dagang, and Nanmukeng) and aplite-type Rb (Fuhua, Tongan) mineralization from the Ganfang intrusion for case studies. The detailed mineralogy texture and composition of feldspars and micas have been analyzed by automatic mineral scanning system, electron probe and LA-ICP-MS. The results show that micas are the main carriers of Rb (1683X10 -12047X10 ), and the contents of Rb in feldspars are lower. The Rb content of K-feldspar is 1683X10 -4051X10 , whereas albite contains almost no Rb concentration (1. 82 X 10 -89.94X10 ). The Rb-bearing micas transfer from muscovite, though Li-phengite and zinnwaldite, to lepidolite, in which substituted mechanisms for Li are 2Li + ,vSi4+- v,Al3++v,Al3++n andLi++Fe2+- V,A13++H, and for Rb is Rb+/ Na+ /Cs+ ~ K+. The mineral textures and compositions record both magma crystallization differentiation and fluid metasomatism for Ganfang granites; however, the former -was the key enrichment mechanism for Rb as •well as Li. © 2023 Geological Society of China. All rights reserved.
Keyword ：
enrichment mechanism enrichment mechanism Ganfang granite Ganfang granite granite granite Jiangxi Province Jiangxi Province rare metals rare metals Rb Rb
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| GB/T 7714 | Xu, J. , Hou, W. , Wang, L. et al. Rb mineralization during magmatic differentiation: Insight from mineralogical study on the Ganfang rare metal granite, Jiangxi Province; [稀有金属花岗岩结晶分异过程中铷的富集与成矿来自江西甘坊岩体的矿物学证据] [J]. | Acta Geologica Sinica , 2023 , 97 (11) : 3766-3785 . |
| MLA | Xu, J. et al. "Rb mineralization during magmatic differentiation: Insight from mineralogical study on the Ganfang rare metal granite, Jiangxi Province; [稀有金属花岗岩结晶分异过程中铷的富集与成矿来自江西甘坊岩体的矿物学证据]" . | Acta Geologica Sinica 97 . 11 (2023) : 3766-3785 . |
| APA | Xu, J. , Hou, W. , Wang, L. , Zhao, T. , Chen, S. , Tian, L. . Rb mineralization during magmatic differentiation: Insight from mineralogical study on the Ganfang rare metal granite, Jiangxi Province; [稀有金属花岗岩结晶分异过程中铷的富集与成矿来自江西甘坊岩体的矿物学证据] . | Acta Geologica Sinica , 2023 , 97 (11) , 3766-3785 . |
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