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学者姓名：徐净
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Abstract ：
岩浆作用的不同时期、不同种属的碱性暗色矿物的矿物学信息能反演岩浆演化过程.本文对福建福州鼓山地区的晶洞花岗岩进行了主微量元素、锆石U-Pb同位素定年、Lu-Hf同位素分析,并对其特征暗色矿物进行了电子探针微区分析.鼓山花岗岩发育典型的钠铁闪石、霓石等碱性暗色矿物,地球化学特征表现为高硅、富碱、贫镁钙、低铁铝,属于准铝质到过碱质岩石;其LREE富集,HREE亏损,具有Eu负异常的特征,均显示K、Rb、Th、U等元素相对富集,Ba、Sr以及高场强元素Nb、Ta、P、Ti相对亏损,为典型的高分异的碱性A型花岗岩.LA-ICP-MS锆石U-Pb年龄在95Ma左右,指示其形成时代为晚白垩世早期.锆石的平均ΔFMQ=+5.36,表明岩浆具有较高的氧逸度,钠铁闪石和霓石等碱性暗色矿物形成于岩浆演化的晚期阶段.霓石显示出其高硅、高钠、高铁,低钛、镁、铝、锰的特征.钠铁闪石具有富碱、高铁、多硅、贫钙的特征.碱性花岗岩的锆石εHf(t)值范围为-1.8～+5.4,二阶段模式年龄tDM2为810～1278Ma,岩浆源区为同期底侵的富集地幔来源的陆壳岩石在高温下部分熔融形成,形成于太平洋板块俯冲后撤背景下的伸展环境.
Keyword ：
A型花岗岩 A型花岗岩 岩石成因 岩石成因 福州鼓山 福州鼓山 钠铁闪石 钠铁闪石 霓石 霓石
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| GB/T 7714 | 邓心禾 , 王力圆 , 徐净 et al. 福州鼓山地区A型花岗岩中碱性暗色矿物特征及其地质意义 [J]. | 岩石学报 , 2025 , 41 (1) : 112-134 . |
| MLA | 邓心禾 et al. "福州鼓山地区A型花岗岩中碱性暗色矿物特征及其地质意义" . | 岩石学报 41 . 1 (2025) : 112-134 . |
| APA | 邓心禾 , 王力圆 , 徐净 , 陈素余 . 福州鼓山地区A型花岗岩中碱性暗色矿物特征及其地质意义 . | 岩石学报 , 2025 , 41 (1) , 112-134 . |
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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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Indium, as a critical metal, exhibits geochemical behaviors similar to those of Sn during ore-forming processes. Sn-polymetallic deposits formed in the magmatic-hydrothermal system are the most important sources for indium resources worldwide. Recently, Sn-poor magmatic-hydrothermal deposits with conspicuous indium enrichments have been found in China, indicating the great potential of indium resources. Previous studies have suggested that granitic magma is the source of indium, regardless whether the deposits are Sn-poor or Sn-rich. However, the indium enrichment mechanism during magma processes is poorly understood. The Chitudian Pb-Zn-Ag deposit, located in the Luanchuan ore district, is a typical example that is Sn-poor deposit with high indium content. The mineralization of this deposit is considered to be associated with a Yanshanian intrusion named Yuku-Shibaogou granite (YSG). Biotite is an important carrier of indium and tin, and its chemical composition can be used to characterize the physicochemical conditions of magmatic and hydrothermal systems. In this study, Electron Probe Microanalysis (EPMA) and Laser Ablation-Inductively Coupled Plasma- Mass Spectrometry (LA-ICP-MS) were used to investigate the mineralogy and geochemistry of biotite from YSG, and the results were compared with those of Sn-In mineralized granites (SIG) in south China, aiming to identify factors controlling indium enrichment during magma processes. The results show that the biotites from YSG are Fe-biotite, whereas those from SIG are Mg-biotite or siderophllite. The indium and tin contents of the former are higher than those of the latter, suggesting that SIG is significantly rich in indium and tin relative to YSG. Moreover, the biotite geochemistry indicates that SIG, derived from the partial melting of metasedimentary rock, is characterized by higher temperature, higher volatile contents, and lower oxygen fugacity than YSG. Such favorable conditions may play an important role in Sn-In mineralization in South China. However, the physicochemical conditions of YSG are quite different from those of SIG. The indium enrichment observed in the Chitudian deposit may result from the remobilization and re-enrichment of indium, which is induced by tectonic deformation and fluid overprinting. Therefore, the presence of indium enrichment in Sn-poor deposits doesnot mean that the ore-related magma was In-enriched but rather Sn-poor. © 2024 Science Press. All rights reserved.
Keyword ：
biotite biotite enrichment mechanism of indium enrichment mechanism of indium Luanchuan ore district Luanchuan ore district mineralogy and geochemistry mineralogy and geochemistry Yuku-Shibaogou intrusion Yuku-Shibaogou intrusion
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| GB/T 7714 | Chen, C. , Han, J. , Xu, J. et al. Biotite Geochemistry of the Yuku-Shibaogou Intrusion, Luanchuan Ore District: Implications for Indium Mineralization; [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]. | Geotectonica et Metallogenia , 2024 , 48 (4) : 754-770 . |
| MLA | Chen, C. et al. "Biotite Geochemistry of the Yuku-Shibaogou Intrusion, Luanchuan Ore District: Implications for Indium Mineralization; [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]" . | Geotectonica et Metallogenia 48 . 4 (2024) : 754-770 . |
| APA | Chen, C. , Han, J. , Xu, J. , Zhao, T. . Biotite Geochemistry of the Yuku-Shibaogou Intrusion, Luanchuan Ore District: Implications for Indium Mineralization; [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] . | Geotectonica et Metallogenia , 2024 , 48 (4) , 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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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.
Keyword ：
Fluid overprints Fluid overprints Granite-related Granite-related Quartz textures Quartz textures Trace elements Trace elements U mineralization U mineralization Zhuguangshan Zhuguangshan
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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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Fluvial detrital zircons provide crucial insights into crustal evolution in the early Precambrian. We used U-Pb geochronology and the Hf-O isotopic compositions of detrital zircons from the Tingjiang River to determine the provenance and continental crustal evolution of the NE Cathaysia Block. The zircon U-Pb ages show seven major populations at 177-105, 262-200 and 520-376 Ma, with striking peaks at c. 422, 775-606, 1457-836, 2042-1710 and 2661-2300 Ma, corresponding to documented tectono-thermal events in the South China Block. Episodic magmatism was the response to the formation and break-up of the Columbia and Rodinia supercontinents. The episode at 422 Ma matches with the ages of widespread early Paleozoic intraplate orogenic events in the South China Block. The isotopic signatures of Hf and O in the detrital zircons indicate that the majority of the Precambrian zircons likely originated from remelted ancient continental crust, with contributions from juvenile mantle-derived magmas. The Phanerozoic zircons, by contrast, were formed through the partial melting of recycled crustal material. Analysis of crustal growth rates, based on the two-stage Hf model ages, suggests a significant presence of juvenile crustal growth during the Paleoproterozoic era. Specifically, it is estimated that c. 40 and 90% of the present crust within the NE Cathaysia Block was formed at c. 2.3 and 1.6 Ga, respectively.
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| GB/T 7714 | Wang, Liyuan , Qiu, Chenhong , Zhang, Wenhui et al. Constraints on the growth and evolution of continental crust in the NE Cathaysia Block: insights from detrital zircon U-Pb ages and Hf-O isotopic analyses in Tingjiang sediments [J]. | JOURNAL OF THE GEOLOGICAL SOCIETY , 2024 , 181 (6) . |
| MLA | Wang, Liyuan et al. "Constraints on the growth and evolution of continental crust in the NE Cathaysia Block: insights from detrital zircon U-Pb ages and Hf-O isotopic analyses in Tingjiang sediments" . | JOURNAL OF THE GEOLOGICAL SOCIETY 181 . 6 (2024) . |
| APA | Wang, Liyuan , Qiu, Chenhong , Zhang, Wenhui , Xu, Jing , Zerizghi, Teklit . Constraints on the growth and evolution of continental crust in the NE Cathaysia Block: insights from detrital zircon U-Pb ages and Hf-O isotopic analyses in Tingjiang sediments . | JOURNAL OF THE GEOLOGICAL SOCIETY , 2024 , 181 (6) . |
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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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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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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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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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