A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit
Abstract The northern margin of the North China Craton (NCC) hosts large numbers of hydrothermal gold deposits, with mineralization ages ranging from the Paleozoic to Mesozoic eras. The genesis of these deposits has been primarily ascribed to magmatic‐hydrothermal or crustal‐metamorphic fluid models...
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Wiley
2025-05-01
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| Series: | Geochemistry, Geophysics, Geosystems |
| Online Access: | https://doi.org/10.1029/2024GC012053 |
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| author | Tingting Xiao Deyou Sun Cheng Xu Zhendong Tian Anbo Luo Changzhou Deng Runsheng Yin |
| author_facet | Tingting Xiao Deyou Sun Cheng Xu Zhendong Tian Anbo Luo Changzhou Deng Runsheng Yin |
| author_sort | Tingting Xiao |
| collection | DOAJ |
| description | Abstract The northern margin of the North China Craton (NCC) hosts large numbers of hydrothermal gold deposits, with mineralization ages ranging from the Paleozoic to Mesozoic eras. The genesis of these deposits has been primarily ascribed to magmatic‐hydrothermal or crustal‐metamorphic fluid models. The Hadamengou gold deposit (>170 t Au), the largest gold deposit in this region in terms of gold reserve, is still unclear on either the mineralization age or the source of metals. In this work, in situ apatite (hydrothermal) U‐Pb dating and Hg isotope tracing were employed to address the two key issues. In situ apatite U‐Pb dating revealed a mineralization age of 335 ± 10 Ma (2SD), coinciding with the period of Paleo‐Asian Ocean subduction. Mercury isotope analyses yielded near‐zero Δ199Hg values (−0.01 ± 0.06‰, SD) in ores and sulfides, consistent with results for the nearby ∼360 to ∼330 Ma Dahuabei granitic pluton (−0.09 ± 0.03‰, SD), suggesting a close genetic connection between them. The results of this study support that the Hadamengou belongs to a Late Paleozoic hydrothermal gold mineralization system, which was formed closely related to subduction of the Paleo‐Asian Ocean. This study demonstrates a Late Paleozoic gold mineralization event and a good potential for exploration of gold around Late Paleozoic granitic plutons in the northern margin of the NCC. |
| format | Article |
| id | doaj-art-a720f7c6bbca49478170cd639b68b534 |
| institution | Kabale University |
| issn | 1525-2027 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Wiley |
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| series | Geochemistry, Geophysics, Geosystems |
| spelling | doaj-art-a720f7c6bbca49478170cd639b68b5342025-08-20T03:44:47ZengWileyGeochemistry, Geophysics, Geosystems1525-20272025-05-01265n/an/a10.1029/2024GC012053A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold DepositTingting Xiao0Deyou Sun1Cheng Xu2Zhendong Tian3Anbo Luo4Changzhou Deng5Runsheng Yin6College of Earth Sciences Guilin University of Technology Guilin ChinaCollege of Earth Sciences Jilin University Changchun ChinaCollege of Earth Sciences Guilin University of Technology Guilin ChinaState Key Laboratory for Critical Mineral Research and Exploration Institute of Geochemistry Chinese Academy of Sciences Guiyang ChinaState Key Laboratory for Critical Mineral Research and Exploration Institute of Geochemistry Chinese Academy of Sciences Guiyang ChinaState Key Laboratory for Critical Mineral Research and Exploration Institute of Geochemistry Chinese Academy of Sciences Guiyang ChinaState Key Laboratory for Critical Mineral Research and Exploration Institute of Geochemistry Chinese Academy of Sciences Guiyang ChinaAbstract The northern margin of the North China Craton (NCC) hosts large numbers of hydrothermal gold deposits, with mineralization ages ranging from the Paleozoic to Mesozoic eras. The genesis of these deposits has been primarily ascribed to magmatic‐hydrothermal or crustal‐metamorphic fluid models. The Hadamengou gold deposit (>170 t Au), the largest gold deposit in this region in terms of gold reserve, is still unclear on either the mineralization age or the source of metals. In this work, in situ apatite (hydrothermal) U‐Pb dating and Hg isotope tracing were employed to address the two key issues. In situ apatite U‐Pb dating revealed a mineralization age of 335 ± 10 Ma (2SD), coinciding with the period of Paleo‐Asian Ocean subduction. Mercury isotope analyses yielded near‐zero Δ199Hg values (−0.01 ± 0.06‰, SD) in ores and sulfides, consistent with results for the nearby ∼360 to ∼330 Ma Dahuabei granitic pluton (−0.09 ± 0.03‰, SD), suggesting a close genetic connection between them. The results of this study support that the Hadamengou belongs to a Late Paleozoic hydrothermal gold mineralization system, which was formed closely related to subduction of the Paleo‐Asian Ocean. This study demonstrates a Late Paleozoic gold mineralization event and a good potential for exploration of gold around Late Paleozoic granitic plutons in the northern margin of the NCC.https://doi.org/10.1029/2024GC012053 |
| spellingShingle | Tingting Xiao Deyou Sun Cheng Xu Zhendong Tian Anbo Luo Changzhou Deng Runsheng Yin A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit Geochemistry, Geophysics, Geosystems |
| title | A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit |
| title_full | A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit |
| title_fullStr | A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit |
| title_full_unstemmed | A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit |
| title_short | A Late Paleozoic Hydrothermal Gold Mineralization Event in the Northern Margin of the North China Craton: Evidence of In Situ Apatite U‐Pb Dating and Hg Isotope Tracing of the Giant Hadamengou Gold Deposit |
| title_sort | late paleozoic hydrothermal gold mineralization event in the northern margin of the north china craton evidence of in situ apatite u pb dating and hg isotope tracing of the giant hadamengou gold deposit |
| url | https://doi.org/10.1029/2024GC012053 |
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