Acta Geologica Sinica ‐ English Edition最新文献_第10页

The Electrical Structure and Geodynamic Significance in the Alxa Block 阿拉善地块电性构造及其地球动力学意义

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-11-29 DOI: 10.1111/1755-6724.15245

Weiheng YUAN, Xiaoqiang CHEN, Chang'an GUO, Bin WANG, Lingxiao ZHANG, Chutong CHEN

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The Continental Scale USMTArray: Lessons Learned and Synergies with SinoProbe-II 大陆规模usmarray：与SinoProbe-II的经验教训和协同作用

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-11-29 DOI: 10.1111/1755-6724.15237

Adam SCHULTZ

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The Collaboratory for the Study of Earthquake Predictability in China: Experiment Design and Preliminary Results of CSEP2.0 中国地震可预见性研究合作实验室：CSEP2.0试验设计与初步结果

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-11-29 DOI: 10.1111/1755-6724.15250

Shengfeng ZHANG, Yongxian ZHANG, Maximilian J. WERNER, Kenny GRAHAM, David A. RHOADES, José A. BAYONA

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Research on the Application of Electromagnetic Method in the Exploration of Altered Rock-type Gold Deposits in the East Kunlun Metallogenic Belt 电磁法在东昆仑成矿带蚀变岩型金矿找矿中的应用研究

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-11-29 DOI: 10.1111/1755-6724.15227

Ji'en DONG, Huiqing ZHANG, Peng WANG, Hua LI, Gaofeng YE, Xiaoliang YU, Jie LI

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The Discovery of the Banda Bend, a >2000 km-wide Tectonically Formed Extensional Bend in Eastern Indonesia, Southeast Asia 班达弯的发现，这是东南亚印度尼西亚东部一个大约2000公里宽的构造形成的伸展弯

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-11-29 DOI: 10.1111/1755-6724.15238

Afroz Ahmad SHAH, Muhammad Gazali RACHMAN, Ashar Muda LUBIS

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Decoding Subsurface Secondary Mineralisation and its Impact on Cohesive Strength: An Outcome of the Deep Scientific Drilling Program in the Koyna–Warna Seismogenic Region, Western India 破译地下二次矿化及其对黏结强度的影响：印度西部Koyna-Warna发震区深部科学钻探计划的结果

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-11-29 DOI: 10.1111/1755-6724.15236

Halder PIYAL, Sharma ANUPAM, Kumar Shukla MATSYENDRA, Kumar KAMLESH

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Petrogenesis of the Hercynian Granite in the Shuangjianzishan Super-large Ag Polymetallic Deposit, Inner Mongolia and its Metallogenic Significance: Evidence from Geochronology and Petrogeochemistry 内蒙古双尖子山超大型银多金属矿床海西期花岗岩成因及其成矿意义：地质年代学和岩石地球化学证据

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-11-05 DOI: 10.1111/1755-6724.15215

Yu LIU, Biao JIANG, Liwen WU, Yushan ZUO, Zhao LIU, Haitao LIU

{"title":"Petrogenesis of the Hercynian Granite in the Shuangjianzishan Super-large Ag Polymetallic Deposit, Inner Mongolia and its Metallogenic Significance: Evidence from Geochronology and Petrogeochemistry","authors":"Yu LIU, Biao JIANG, Liwen WU, Yushan ZUO, Zhao LIU, Haitao LIU","doi":"10.1111/1755-6724.15215","DOIUrl":"https://doi.org/10.1111/1755-6724.15215","url":null,"abstract":"The Shuangjianzishan deposit is a typical magmatic-hydrothermal deposit located in the southern Great Xing'an Range. Recent investigations have identified significant copper and tin mineralization at depth within the Shuangjianzishan deposit; however, the coupling relationship between magmatic emplacement and mineralization processes remains debated. This study presents whole-rock geochemistry, zircon LA-ICP-MS U-Pb dating, and zircon Hf isotope analyses of granite from the northern Shuangjianzishan deposit. The analysis results indicate the granite crystallized between 252.3 and 257.9 Ma, corresponding to Late Permian magmatic activity. The granite displays εHf(t) = 5.95–14.87, and tDM2 = 333–900 Ma. Geochemically, the granite is rich in Si and Al, with high K, classified as a calc-alkaline, weakly peraluminous rock. LREEs are enriched, while HREEs are depleted, and a slight negative Eu anomaly, all of which are consistent with A-type granite characteristics. The Hercynian granite in the Shuangjianzishan deposit formed during the latter or post-collisional stages of the collision orogeny following the closure of the Paleo-Asian Ocean in the late Paleozoic era. The material source indicates a mixed origin, involving both crust and mantle contributions. The granite is also enriched in Cu, Pb, and Zn, suggesting its potential role as an ore-forming material source for the Shuangjianzishan deposit. This study proposes a potential link between Hercynian magmatism and mineralization at the Shuangjianzishan deposit for the first time, suggesting that multistage metallogenesis may be a response to successive magmatic events from Hercynian to Yanshanian periods in the mining area.","PeriodicalId":7095,"journal":{"name":"Acta Geologica Sinica ‐ English Edition","volume":"99 2","pages":"459-472"},"PeriodicalIF":3.5,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143879820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Acta Geologica Sinica (English Edition) Calls for Submission of Review Papers 地质学报》（英文版）征集评论文章

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-10-28 DOI: 10.1111/1755-6724.15216

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Influence of Magmatic Intrusion on Abnormal Hydrocarbon Generation and Expulsion of Source Rock: A Case Study of the Dongying Sag, Bohai Bay Basin 岩浆侵入对异常烃生成和源岩排出的影响：渤海湾盆地东营下陷案例研究

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-10-28 DOI: 10.1111/1755-6724.15171

Chuanming LI, Jianhui ZENG, Maoyun WANG, Hui LONG, Shuning LIU

{"title":"Influence of Magmatic Intrusion on Abnormal Hydrocarbon Generation and Expulsion of Source Rock: A Case Study of the Dongying Sag, Bohai Bay Basin","authors":"Chuanming LI, Jianhui ZENG, Maoyun WANG, Hui LONG, Shuning LIU","doi":"10.1111/1755-6724.15171","DOIUrl":"https://doi.org/10.1111/1755-6724.15171","url":null,"abstract":"How gabbro affects the generation and expulsion of hydrocarbons in muddy surrounding rocks is clarified by analyzing thin section, major and trace elements, total organic carbon (TOC), pyrolysis, extracts and vitrinite reflectance data from source rocks in the Chunxi area the Dongying Sag, Bohai Bay Basin, eastern China. The results show that a magma intrusion brings copious heat to the source rocks, which promotes abnormal maturation of organic matter (OM) and rapid hydrocarbon generation. The CH4 and H2 produced by gabbro alteration play a role in hydrocarbon generation of source rocks. The hydrothermal process during magma intrusion provides many different minerals to the source rock, resulting in carbonate-rich surrounding mudstone. The carbonate and clay minerals produced by volcanic mineral alteration jointly catalyze the hydrocarbon generation of the source rock. The high-temperature baking of the intrusion results in hydrothermal pressurization and hydrocarbon generation pressurization, causing many fractures in the surrounding rock. The generated oil and gas are discharged through the fractures under diffusion and pressure. Mantle-derived CO2 is also conducive to the expulsion of hydrocarbons because of its strong enrichment capacity for hydrocarbons.","PeriodicalId":7095,"journal":{"name":"Acta Geologica Sinica ‐ English Edition","volume":"98 5","pages":"1322-1337"},"PeriodicalIF":3.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142525401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Robust Timing Constraints for Granitic Magmatism and Hydrothermal Mineralization in the Tieshanlong W-Sn Ore Field, Eastern Nanling Range, South China 中国南方南岭东部铁山龙钨硒矿田花岗岩岩浆作用和热液成矿作用的时间约束

IF 3.5 3区地球科学

Acta Geologica Sinica ‐ English Edition Pub Date : 2024-10-28 DOI: 10.1111/1755-6724.15212

Wei LI, Juxing TANG, Na GUO, Xinghai LANG, Shiwei SONG, Zhongru WU, Linlin PENG, Xiang FANG, Binfeng CHEN, Dunmei LIAN, Jie LU

{"title":"Robust Timing Constraints for Granitic Magmatism and Hydrothermal Mineralization in the Tieshanlong W-Sn Ore Field, Eastern Nanling Range, South China","authors":"Wei LI, Juxing TANG, Na GUO, Xinghai LANG, Shiwei SONG, Zhongru WU, Linlin PENG, Xiang FANG, Binfeng CHEN, Dunmei LIAN, Jie LU","doi":"10.1111/1755-6724.15212","DOIUrl":"https://doi.org/10.1111/1755-6724.15212","url":null,"abstract":"The Tieshanlong ore field is an important part of the Nanling Range, which is famous worldwide for its W-Sn mineralization. Notably, the mineralization age of the Tieshanlong ore field is not well constrained, and our field investigation reveals that granitic emplacement occurred at different stages. However, previous studies have not distinguished these multiple stages of magmatism. The Tieshanlong granite complex is closely related to the Huangsha quartz vein-type W-Sn deposit and Tongling skarn-type Cu-W-Sn deposit in this field. Through field investigations and isotopic age analyses, this work studies the relationship between multistage magmatic activity and mineralization in the Tieshanlong ore field. LA-ICP-MS zircon U-Pb isotope analyses revealed that the first- and second-staged granites formed at 154.2 ± 0.6 Ma (MSDW = 1.4) and 151.2 ± 0.4 Ma (MSDW = 1.5), with zircon εHf(t) values ranging from -13.1 to -10.5 and from -14.7 to -11.1, respectively. These data suggest that the Tieshanlong granite complex was derived from the partial melting of ancient crustal material. LA-ICP-MS U-Pb dating of wolframite and cassiterite reveals that W-Sn mineralization occurred at 160–150 Ma, which agrees well with the U-Pb dating results of the second-staged granite within analytical errors. The magmatic activity in this ore field can be divided into three stages: 175–154 Ma, 154–150 Ma and 150–145 Ma. The quartz vein- and skarn-type W-Sn mineralization is closely related to second-staged fine-grained two-mica granite, and formed earlier than skarn-type Cu- mineralization. This study establishes a metallogenic model for the Tieshanlong ore field, and this model has important practical significance for identifying concealed W-Sn(-Cu) deposits around other granitic complexes in the Nanling Range.","PeriodicalId":7095,"journal":{"name":"Acta Geologica Sinica ‐ English Edition","volume":"98 5","pages":"1255-1269"},"PeriodicalIF":3.5,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142525467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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