Magmatic Process Associated with the Baogutu Reduced Cu Porphyry-Type Deposit (West Junggar, Northwest China): Evidence from Multiple Enclaves
Enclaves constitute a key tracer guide to assess the magmatic source and evolutionary processes of Cu–Mo–Au porphyry-type deposits. In this study, four types of enclaves were identified in the Baogutu reduced Cu porphyry-type deposit, West Junggar, Northwest China: gabbroic enclaves (Type 1) and sch...
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-06-01
|
| Series: | Minerals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-163X/12/7/815 |
| _version_ | 1797433232575168512 |
|---|---|
| author | Chu Wu Tao Hong Xing-Wang Xu Xiao Zheng Cheng-Xi Wang Wan-Juan Liang Ke-Feng Sun Hui-Jun Zhang Bin Wang Lian-Hui Dong |
| author_facet | Chu Wu Tao Hong Xing-Wang Xu Xiao Zheng Cheng-Xi Wang Wan-Juan Liang Ke-Feng Sun Hui-Jun Zhang Bin Wang Lian-Hui Dong |
| author_sort | Chu Wu |
| collection | DOAJ |
| description | Enclaves constitute a key tracer guide to assess the magmatic source and evolutionary processes of Cu–Mo–Au porphyry-type deposits. In this study, four types of enclaves were identified in the Baogutu reduced Cu porphyry-type deposit, West Junggar, Northwest China: gabbroic enclaves (Type 1) and schist enclaves (Type 2) are proposed to be restites and immiscible enclaves, respectively, which confirm the contributions of mantle components and sediments in the reduced Cu porphyry-type deposit. Fine-grained dioritic enclaves (Type 3) have a similar mineral composition and texture to the dioritic host rocks, which are probably autoliths derived from inhomogeneous fractional crystallization. Tuffaceous siltstone enclaves (Type 4) with a zircon U-Pb age of 339.2 ± 7.5 Ma (MSWD = 0.55), the formation age of which is in agreement with the host early Carboniferous rock unit, indicate that these tuffaceous siltstone enclaves might have formed in a contamination process. Moreover, the schist enclaves, together with the newly discovered 2691.3 ± 12.3 Ma inherited zircon in tuffaceous siltstone enclaves, further indicate that the Baogutu arc could be a continental arc. |
| first_indexed | 2024-03-09T10:14:06Z |
| format | Article |
| id | doaj.art-15de3930d2204be9bd652294861267b0 |
| institution | Directory Open Access Journal |
| issn | 2075-163X |
| language | English |
| last_indexed | 2024-03-09T10:14:06Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Minerals |
| spelling | doaj.art-15de3930d2204be9bd652294861267b02023-12-01T22:28:59ZengMDPI AGMinerals2075-163X2022-06-0112781510.3390/min12070815Magmatic Process Associated with the Baogutu Reduced Cu Porphyry-Type Deposit (West Junggar, Northwest China): Evidence from Multiple EnclavesChu Wu0Tao Hong1Xing-Wang Xu2Xiao Zheng3Cheng-Xi Wang4Wan-Juan Liang5Ke-Feng Sun6Hui-Jun Zhang7Bin Wang8Lian-Hui Dong9Development and Research Center of China Geology Survey, Beijing 100037, ChinaGuangdong Provincial Key Lab of Geodynamics and Geohazards, School of Earth Sciences and Engineering, Sun Yat-sen University, Guangzhou 510275, ChinaKey Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaDevelopment and Research Center of China Geology Survey, Beijing 100037, ChinaDevelopment and Research Center of China Geology Survey, Beijing 100037, ChinaDevelopment and Research Center of China Geology Survey, Beijing 100037, ChinaDevelopment and Research Center of China Geology Survey, Beijing 100037, ChinaDevelopment and Research Center of China Geology Survey, Beijing 100037, ChinaDevelopment and Research Center of China Geology Survey, Beijing 100037, ChinaKey Laboratory of Mineral Resources, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, ChinaEnclaves constitute a key tracer guide to assess the magmatic source and evolutionary processes of Cu–Mo–Au porphyry-type deposits. In this study, four types of enclaves were identified in the Baogutu reduced Cu porphyry-type deposit, West Junggar, Northwest China: gabbroic enclaves (Type 1) and schist enclaves (Type 2) are proposed to be restites and immiscible enclaves, respectively, which confirm the contributions of mantle components and sediments in the reduced Cu porphyry-type deposit. Fine-grained dioritic enclaves (Type 3) have a similar mineral composition and texture to the dioritic host rocks, which are probably autoliths derived from inhomogeneous fractional crystallization. Tuffaceous siltstone enclaves (Type 4) with a zircon U-Pb age of 339.2 ± 7.5 Ma (MSWD = 0.55), the formation age of which is in agreement with the host early Carboniferous rock unit, indicate that these tuffaceous siltstone enclaves might have formed in a contamination process. Moreover, the schist enclaves, together with the newly discovered 2691.3 ± 12.3 Ma inherited zircon in tuffaceous siltstone enclaves, further indicate that the Baogutu arc could be a continental arc.https://www.mdpi.com/2075-163X/12/7/815petrogenesis of enclavesmagmatic evolutioncontinental island arcBaogutu reduced Cu porphyry-type deposit |
| spellingShingle | Chu Wu Tao Hong Xing-Wang Xu Xiao Zheng Cheng-Xi Wang Wan-Juan Liang Ke-Feng Sun Hui-Jun Zhang Bin Wang Lian-Hui Dong Magmatic Process Associated with the Baogutu Reduced Cu Porphyry-Type Deposit (West Junggar, Northwest China): Evidence from Multiple Enclaves Minerals petrogenesis of enclaves magmatic evolution continental island arc Baogutu reduced Cu porphyry-type deposit |
| title | Magmatic Process Associated with the Baogutu Reduced Cu Porphyry-Type Deposit (West Junggar, Northwest China): Evidence from Multiple Enclaves |
| title_full | Magmatic Process Associated with the Baogutu Reduced Cu Porphyry-Type Deposit (West Junggar, Northwest China): Evidence from Multiple Enclaves |
| title_fullStr | Magmatic Process Associated with the Baogutu Reduced Cu Porphyry-Type Deposit (West Junggar, Northwest China): Evidence from Multiple Enclaves |
| title_full_unstemmed | Magmatic Process Associated with the Baogutu Reduced Cu Porphyry-Type Deposit (West Junggar, Northwest China): Evidence from Multiple Enclaves |
| title_short | Magmatic Process Associated with the Baogutu Reduced Cu Porphyry-Type Deposit (West Junggar, Northwest China): Evidence from Multiple Enclaves |
| title_sort | magmatic process associated with the baogutu reduced cu porphyry type deposit west junggar northwest china evidence from multiple enclaves |
| topic | petrogenesis of enclaves magmatic evolution continental island arc Baogutu reduced Cu porphyry-type deposit |
| url | https://www.mdpi.com/2075-163X/12/7/815 |
| work_keys_str_mv | AT chuwu magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT taohong magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT xingwangxu magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT xiaozheng magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT chengxiwang magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT wanjuanliang magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT kefengsun magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT huijunzhang magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT binwang magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves AT lianhuidong magmaticprocessassociatedwiththebaogutureducedcuporphyrytypedepositwestjunggarnorthwestchinaevidencefrommultipleenclaves |