Qiu, Jianhuan, Liu, Wenyuan, Chen, Jingwen, Lai, Xiaodan, Zhong, Xianghua, Li, Jieyi, Long, Hua (2024) Alteration mineralogy, characteristics and shortwave infrared spectroscopy of white mica in the Zijinshan ore field, Fujian Province: Implications for porphyry Cu prospecting. Ore Geology Reviews, 168. 106065 doi:10.1016/j.oregeorev.2024.106065
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | Alteration mineralogy, characteristics and shortwave infrared spectroscopy of white mica in the Zijinshan ore field, Fujian Province: Implications for porphyry Cu prospecting | ||
| Journal | Ore Geology Reviews | ||
| Authors | Qiu, Jianhuan | Author | |
| Liu, Wenyuan | Author | ||
| Chen, Jingwen | Author | ||
| Lai, Xiaodan | Author | ||
| Zhong, Xianghua | Author | ||
| Li, Jieyi | Author | ||
| Long, Hua | Author | ||
| Year | 2024 | Volume | < 168 > |
| URL | |||
| DOI | doi:10.1016/j.oregeorev.2024.106065Search in ResearchGate | ||
| Generate Citation Formats | |||
| Classification | Not set | LoC | Not set |
| Mindat Ref. ID | 17335513 | Long-form Identifier | mindat:1:5:17335513:0 |
| GUID | 0 | ||
| Full Reference | Qiu, Jianhuan, Liu, Wenyuan, Chen, Jingwen, Lai, Xiaodan, Zhong, Xianghua, Li, Jieyi, Long, Hua (2024) Alteration mineralogy, characteristics and shortwave infrared spectroscopy of white mica in the Zijinshan ore field, Fujian Province: Implications for porphyry Cu prospecting. Ore Geology Reviews, 168. 106065 doi:10.1016/j.oregeorev.2024.106065 | ||
| Plain Text | Qiu, Jianhuan, Liu, Wenyuan, Chen, Jingwen, Lai, Xiaodan, Zhong, Xianghua, Li, Jieyi, Long, Hua (2024) Alteration mineralogy, characteristics and shortwave infrared spectroscopy of white mica in the Zijinshan ore field, Fujian Province: Implications for porphyry Cu prospecting. Ore Geology Reviews, 168. 106065 doi:10.1016/j.oregeorev.2024.106065 | ||
| In | Link this record to the correct parent record (if possible) | ||
| Abstract/Notes | The Zijinshan ore field is situated in the southeastern part of China. in which contains the large Zijinshan high-sulfidation Cu-Au deposit, the Luoboling porphyry Cu-Mo deposit, the Yueyang low-sulfidation Au-Ag deposit, the Longjiangting and the Wuziqilong tansitional Cu deposit, and the Xi’nan porphyry Cu-Mo prospect. Debates on genetic relationship among these deposits, especially the relationship between the Zijinshan Cu-Au deposit and the adjacent Luoboling deposit is a question of importance for further exploration in this ore field. In this contribution, the alteration mineralogy, alteration texture, zonation and mineral chemistry, in combination with shortwave infrared spectroscopy (SWIR) analysis of white mica were used to help focus exploration and assessment of hydrothermal deposits in the Zijinshan ore field. In this study, diaspore-pyrophyllite alteration zone, chlorite-sericite alteration zone and propylitic alteration zone were first identified in the deep drill core of the Zijinshan Cu-Au deposit, which gives way upward to quartz-alunite-kaolinite zone, quartz-alunite zone and the silicic alteration zone. In the Xi’nan Cu-Mo prospect, diaspore-pyrophyllite alteration zone was first recognized in the shallow level with the chlorite-sericite alteration zone and propylitic alteration zone in the deeper level. Andalusite- sericite ± diaspore alteration zone was first recognized in the upper part of the Luoboling Cu-Mo deposit and the deeper part of the Wuziqilong Cu deposit. It indicates that a pervasive occurrence of diaspore -pyrophyllite ± andalusite alteration zones in the Zijinshan ore field, which may potentially represent a transitional environment between the top of porphyry alteration zones and the base of advanced argillic alteration zones. Minerals of the white mica group are extensively distributed in various alteration zones of the Zijinshan ore field. The SWIR analysis of white mica indicated that the wavelength position of the Al-OH (∼2,200 nm; wAlOH) absorption feature increases gradually from the shallow kaolinite-dickite alteration zone to the deep potassic alteration zone. In the advanced argillic alteration zones, the range of wAlOH values of white mica is less than 2205 nm. Conversely, in the porphyry alteration zones, it always exceeds 2205 nm. It is evident that the andalusite-sericite alteration zone with higher wAlOH values (average of 2203 nm) is always proximal to the porphyry mineralization, which may act as indicators for deep porphyry prospecting. The results of electron probe microanalysis (EPMA) reveal that the early enrichment of Mg and depletion of Fe in white mica can be attributed to the preferential incorporation of Fe into iron oxides and iron sulfides in the potassic and propylitic alteration zones. Overall, there is a negative correlation between wAlOH and Al, while wAlOH exhibits a positive correlation with the sum of Fe + Mg + Mn. The distribution characteristics of alteration zones and the variation patterns of the wAlOH of white mica indicate that there are probably several paleo-thermal centers in the deep parts of the Zijinshan ore field, located respectively in the deep parts of the Xi’nan Cu-Mo prospect and the deep part of the Zijinshan Cu-Au deposit and the deep parts of the Wuziqilong Cu deposit, and the latest seems to be more fertile and deserves further exploration. | ||
Map of Localities
Locality Pages
Mineral Occurrences
See Also
These are possibly similar items as determined by title/reference text matching only.
