Lead Isotope Geochemistry in the Qulong-Jiama-Bangpu Ore Concentrated Area of Tibet
The Qulong-Jiama-Bangpu copper polymetallic ore concentration area is one of the most important areas in the Gangdese metallogenic belt of Tibet with more than 15 million tons of copper resources. Ore-forming materials for three deposits were considered to be derived from magma. However, the relatio...
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| Format: | Article |
| Language: | English |
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Science Press, PR China
2016-05-01
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| Series: | Yankuang ceshi |
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| Online Access: | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.03.016 |
| _version_ | 1811168456665464832 |
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| author | YING Li-juan WANG Kuo WANG Kai-jian |
| author_facet | YING Li-juan WANG Kuo WANG Kai-jian |
| author_sort | YING Li-juan |
| collection | DOAJ |
| description | The Qulong-Jiama-Bangpu copper polymetallic ore concentration area is one of the most important areas in the Gangdese metallogenic belt of Tibet with more than 15 million tons of copper resources. Ore-forming materials for three deposits were considered to be derived from magma. However, the relationship between magma with different degrees of mineralization and times and copper mineralization are unknown, especially on a regional scale. By collecting the published lead isotope data of ores, intrusions and strata from these three deposits, the lead isotopic composition of ores from Qulong, Jiama and Bangpu are were found to be similar to those of Miocene ore-bearing porphyries but different from those of intrusions unrelated to mineralization. Spatially, from Qulong in the southwest, to Jiama, and to Bangpu in the northeast, the mineralization ages range from old to young, and lead isotopes evolve obviously with radiogenic lead increments (average 206Pb/204Pb values of ores 18.521→18.644→18.684). Lead isotope geochemistry not only indicates the magma source, but also can differentiate between ore-related intrusions from ore-barren intrusions and suggest the relationship between intrusion and mineralization. |
| first_indexed | 2024-04-10T16:27:47Z |
| format | Article |
| id | doaj.art-33662784c9a44fed830f17f22343bcc1 |
| institution | Directory Open Access Journal |
| issn | 0254-5357 |
| language | English |
| last_indexed | 2024-04-10T16:27:47Z |
| publishDate | 2016-05-01 |
| publisher | Science Press, PR China |
| record_format | Article |
| series | Yankuang ceshi |
| spelling | doaj.art-33662784c9a44fed830f17f22343bcc12023-02-09T01:26:03ZengScience Press, PR ChinaYankuang ceshi0254-53572016-05-0135332032810.15898/j.cnki.11-2131/td.2016.03.016ykcs-35-3-320Lead Isotope Geochemistry in the Qulong-Jiama-Bangpu Ore Concentrated Area of TibetYING Li-juan0WANG Kuo1WANG Kai-jian2Key Laboratory of Metallogeny and Mineral Assessment, Ministry of Land and Resources;Institute of Mineral Resources, Chinese Academy of Geological Sciences, Beijing 100037, ChinaSchool of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, ChinaSchool of Earth Sciences and Resources, China University of Geosciences (Beijing), Beijing 100083, ChinaThe Qulong-Jiama-Bangpu copper polymetallic ore concentration area is one of the most important areas in the Gangdese metallogenic belt of Tibet with more than 15 million tons of copper resources. Ore-forming materials for three deposits were considered to be derived from magma. However, the relationship between magma with different degrees of mineralization and times and copper mineralization are unknown, especially on a regional scale. By collecting the published lead isotope data of ores, intrusions and strata from these three deposits, the lead isotopic composition of ores from Qulong, Jiama and Bangpu are were found to be similar to those of Miocene ore-bearing porphyries but different from those of intrusions unrelated to mineralization. Spatially, from Qulong in the southwest, to Jiama, and to Bangpu in the northeast, the mineralization ages range from old to young, and lead isotopes evolve obviously with radiogenic lead increments (average 206Pb/204Pb values of ores 18.521→18.644→18.684). Lead isotope geochemistry not only indicates the magma source, but also can differentiate between ore-related intrusions from ore-barren intrusions and suggest the relationship between intrusion and mineralization.http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.03.016lead isotopesource of ore forming materialsqulong-jiama-bangpucopper concentration area |
| spellingShingle | YING Li-juan WANG Kuo WANG Kai-jian Lead Isotope Geochemistry in the Qulong-Jiama-Bangpu Ore Concentrated Area of Tibet Yankuang ceshi lead isotope source of ore forming materials qulong-jiama-bangpu copper concentration area |
| title | Lead Isotope Geochemistry in the Qulong-Jiama-Bangpu Ore Concentrated Area of Tibet |
| title_full | Lead Isotope Geochemistry in the Qulong-Jiama-Bangpu Ore Concentrated Area of Tibet |
| title_fullStr | Lead Isotope Geochemistry in the Qulong-Jiama-Bangpu Ore Concentrated Area of Tibet |
| title_full_unstemmed | Lead Isotope Geochemistry in the Qulong-Jiama-Bangpu Ore Concentrated Area of Tibet |
| title_short | Lead Isotope Geochemistry in the Qulong-Jiama-Bangpu Ore Concentrated Area of Tibet |
| title_sort | lead isotope geochemistry in the qulong jiama bangpu ore concentrated area of tibet |
| topic | lead isotope source of ore forming materials qulong-jiama-bangpu copper concentration area |
| url | http://www.ykcs.ac.cn/en/article/doi/10.15898/j.cnki.11-2131/td.2016.03.016 |
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