Geochemical constraints of bulk rocks and in- situ zircon from the granitoids of the Hungund Schist Belt: An insight for hydrothermal activity
文献类型：期刊论文
| 作者 | Hulaji, Shivani4; Hegde, V. S.4; Li, Xian-Hua2,3; Su, Li1; Pratihari, Asim R.4; Paltekar, Manjunath4 |
| 刊名 | JOURNAL OF EARTH SYSTEM SCIENCE
 |
| 出版日期 | 2022-08-17 |
| 卷号 | 131期号:3页码:21 |
| ISSN号 | 2347-4327 |
| 关键词 | Hydrothermal alteration granites zircon trace and REE chemistry Eastern Dharwar Craton |
| DOI | 10.1007/s12040-022-01930-0 |
| 英文摘要 | Orogenic, gold hosting greenstone belts in Eastern Dharwar Craton (EDC), India, are surrounded by granitic bodies and affected by hydrothermal activities. In this paper, field, petrographic and geochemical study of granites coupled with LA-ICP-MS analyses of the trace element abundances of zircons from the granites of the Hungund Schist Belt, the northwest continuation of Kolar and Ramgiri schist belts in EDC is discussed to report the effects of hydrothermal alteration. The geochemical characteristics such as Nb/Ta ratio (similar to 5), low Zr/Hf ratio, depleted Sigma REE from the granites close to the shear zone provide clue towards magmatic-hydrothermal interactions in the source rock, while granites away from the shear zone show feeble alteration signature. Zircons from the altered granite contain higher concentration of trace elements, LREE enrichment and high Sigma REE with weak positive Ce anomalies and strong negative Eu anomalies indicating hydrothermal alteration. While the zircons from unaltered granites have low to moderate trace element concentration and REE patterns similar to unaltered magmatic zircons. Contrarily, in the ternary plot, the zircons from unaltered granites show minor affinity towards metasomatised hydrothermal field instead of clustering under purely magmatic field. Hence it is considered that these zircons from unaltered granite underwent some minor alteration effect, while the zircons from altered granite are affected completely due to hydrothermal activity. Therefore, it is concluded that movement of hydrothermal solution has taken place along the shear zone in the study area, which has affected more on granites close to the shear zone and minor effects are seen in granites away from the shear zone. Hydrothermal alterations often result in concentration of specific economic minerals and hence, can be used as an indicator for mineral exploration. |
| WOS关键词 | EASTERN DHARWAR CRATON ; RARE-EARTH-ELEMENT ; A-TYPE GRANITES ; FLUID INCLUSION CHARACTERISTICS ; ARCHEAN CRUSTAL EVOLUTION ; HOSTED GOLD DEPOSIT ; ORE-FORMING FLUIDS ; U-PB GEOCHRONOLOGY ; HF-RICH ZIRCONS ; TRACE-ELEMENTS |
| 资助项目 | Department of Science and Technology, Govt. of India ; Ministry of Mines, Government of India[14/75/2015-Met.VI] ; National Natural Science Foundation, China[41890831] ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China |
| WOS研究方向 | Geology ; Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | INDIAN ACAD SCIENCES |
| WOS记录号 | WOS:000842209500001 |
| 资助机构 | Department of Science and Technology, Govt. of India ; Department of Science and Technology, Govt. of India ; Ministry of Mines, Government of India ; Ministry of Mines, Government of India ; National Natural Science Foundation, China ; National Natural Science Foundation, China ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China ; Department of Science and Technology, Govt. of India ; Department of Science and Technology, Govt. of India ; Ministry of Mines, Government of India ; Ministry of Mines, Government of India ; National Natural Science Foundation, China ; National Natural Science Foundation, China ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China ; Department of Science and Technology, Govt. of India ; Department of Science and Technology, Govt. of India ; Ministry of Mines, Government of India ; Ministry of Mines, Government of India ; National Natural Science Foundation, China ; National Natural Science Foundation, China ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China ; Department of Science and Technology, Govt. of India ; Department of Science and Technology, Govt. of India ; Ministry of Mines, Government of India ; Ministry of Mines, Government of India ; National Natural Science Foundation, China ; National Natural Science Foundation, China ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China ; State Key Laboratory, Lithospheric Institute, Chinese Academy of Science, Beijing, China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/108413]  |
| 专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
| 通讯作者 | Hulaji, Shivani |
| 作者单位 | 1.China Univ Geosci, Geol Lab Ctr, Beijing 100083, Peoples R China 2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 4.Visvesvaraya Technol Univ, Sri Dharmasthala Manjunatheshwara Coll Engn & Tec, Dharwad, Karnataka, India |
| 推荐引用方式 GB/T 7714 | Hulaji, Shivani,Hegde, V. S.,Li, Xian-Hua,et al. Geochemical constraints of bulk rocks and in- situ zircon from the granitoids of the Hungund Schist Belt: An insight for hydrothermal activity[J]. JOURNAL OF EARTH SYSTEM SCIENCE,2022,131(3):21. |
| APA | Hulaji, Shivani,Hegde, V. S.,Li, Xian-Hua,Su, Li,Pratihari, Asim R.,&Paltekar, Manjunath.(2022).Geochemical constraints of bulk rocks and in- situ zircon from the granitoids of the Hungund Schist Belt: An insight for hydrothermal activity.JOURNAL OF EARTH SYSTEM SCIENCE,131(3),21. |
| MLA | Hulaji, Shivani,et al."Geochemical constraints of bulk rocks and in- situ zircon from the granitoids of the Hungund Schist Belt: An insight for hydrothermal activity".JOURNAL OF EARTH SYSTEM SCIENCE 131.3(2022):21. |
入库方式： OAI收割
来源：地质与地球物理研究所
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