Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin Province, NE China: Constraints from Fluid Inclusions and C–H–O–S–Pb Isotopes
The Toudaochuan gold deposit is a recently discovered lode gold deposit in Central Jilin Province. Gold ore bodies are dominantly controlled by NE-trending fault. The major hydrothermal period can be further divided into the quartz–pyrite stage (stage I), quartz–gold–polymetallic sulfides stage (sta...
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MDPI AG
2022-07-01
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| Online Access: | https://www.mdpi.com/2075-163X/12/8/964 |
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| author | Jingmou Li Yunsheng Ren Qun Yang Xinhao Sun |
| author_facet | Jingmou Li Yunsheng Ren Qun Yang Xinhao Sun |
| author_sort | Jingmou Li |
| collection | DOAJ |
| description | The Toudaochuan gold deposit is a recently discovered lode gold deposit in Central Jilin Province. Gold ore bodies are dominantly controlled by NE-trending fault. The major hydrothermal period can be further divided into the quartz–pyrite stage (stage I), quartz–gold–polymetallic sulfides stage (stage II, major gold mineralization stage), and quartz–carbonate stage (stage III). Primary fluid inclusions (FIs) identified in quartz at different hydrothermal stages include liquid-rich aqueous FIs (L-type), CO<sub>2</sub> FIs (C-type, including CO<sub>2</sub>-bearing C1-type FIs and CO<sub>2</sub>-rich C2-type FIs), and minor vapor-rich aqueous FIs (V-type). Microthermometry studies on different fluid inclusions indicate that the original ore-forming fluids belonged to the CO<sub>2</sub>–H<sub>2</sub>O–NaCl system characterized by a moderate–low temperature and low salinity in stages I and II, and they finally evolved into a H<sub>2</sub>O–NaCl system characterized by low temperature and low salinity in stage III. Fluid immiscibility is considered to be the key ore-forming mechanism. The initial ore-forming fluid was originated from magmatic water and was mixed with meteoric water in the later stage. The S and Pb isotope data suggest that the ore metal materials were derived from the mixed source of mantle and crust. Based on all the above data, therefore, it can be proposed that the Toudaochuan gold deposit is a mesothermal magmatic–hydrothermal gold deposit. |
| first_indexed | 2024-03-09T09:52:10Z |
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| id | doaj.art-b5734978342e43448af49f429114b10e |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T09:52:10Z |
| publishDate | 2022-07-01 |
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| series | Minerals |
| spelling | doaj.art-b5734978342e43448af49f429114b10e2023-12-02T00:03:16ZengMDPI AGMinerals2075-163X2022-07-0112896410.3390/min12080964Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin Province, NE China: Constraints from Fluid Inclusions and C–H–O–S–Pb IsotopesJingmou Li0Yunsheng Ren1Qun Yang2Xinhao Sun3School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, ChinaSchool of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, ChinaCollege of Earth Sciences, Jilin University, Changchun 130061, ChinaCollege of Earth Sciences, Jilin University, Changchun 130061, ChinaThe Toudaochuan gold deposit is a recently discovered lode gold deposit in Central Jilin Province. Gold ore bodies are dominantly controlled by NE-trending fault. The major hydrothermal period can be further divided into the quartz–pyrite stage (stage I), quartz–gold–polymetallic sulfides stage (stage II, major gold mineralization stage), and quartz–carbonate stage (stage III). Primary fluid inclusions (FIs) identified in quartz at different hydrothermal stages include liquid-rich aqueous FIs (L-type), CO<sub>2</sub> FIs (C-type, including CO<sub>2</sub>-bearing C1-type FIs and CO<sub>2</sub>-rich C2-type FIs), and minor vapor-rich aqueous FIs (V-type). Microthermometry studies on different fluid inclusions indicate that the original ore-forming fluids belonged to the CO<sub>2</sub>–H<sub>2</sub>O–NaCl system characterized by a moderate–low temperature and low salinity in stages I and II, and they finally evolved into a H<sub>2</sub>O–NaCl system characterized by low temperature and low salinity in stage III. Fluid immiscibility is considered to be the key ore-forming mechanism. The initial ore-forming fluid was originated from magmatic water and was mixed with meteoric water in the later stage. The S and Pb isotope data suggest that the ore metal materials were derived from the mixed source of mantle and crust. Based on all the above data, therefore, it can be proposed that the Toudaochuan gold deposit is a mesothermal magmatic–hydrothermal gold deposit.https://www.mdpi.com/2075-163X/12/8/964ore genesisfluid inclusionsC–H–O–S–Pb isotopesToudaochuan gold depositCentral Jilin province |
| spellingShingle | Jingmou Li Yunsheng Ren Qun Yang Xinhao Sun Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin Province, NE China: Constraints from Fluid Inclusions and C–H–O–S–Pb Isotopes Minerals ore genesis fluid inclusions C–H–O–S–Pb isotopes Toudaochuan gold deposit Central Jilin province |
| title | Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin Province, NE China: Constraints from Fluid Inclusions and C–H–O–S–Pb Isotopes |
| title_full | Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin Province, NE China: Constraints from Fluid Inclusions and C–H–O–S–Pb Isotopes |
| title_fullStr | Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin Province, NE China: Constraints from Fluid Inclusions and C–H–O–S–Pb Isotopes |
| title_full_unstemmed | Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin Province, NE China: Constraints from Fluid Inclusions and C–H–O–S–Pb Isotopes |
| title_short | Ore Genesis of the Toudaochuan Gold Deposit in Central Jilin Province, NE China: Constraints from Fluid Inclusions and C–H–O–S–Pb Isotopes |
| title_sort | ore genesis of the toudaochuan gold deposit in central jilin province ne china constraints from fluid inclusions and c h o s pb isotopes |
| topic | ore genesis fluid inclusions C–H–O–S–Pb isotopes Toudaochuan gold deposit Central Jilin province |
| url | https://www.mdpi.com/2075-163X/12/8/964 |
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