期刊
MINERALS
卷 9, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/min9100622
关键词
Jiashengpan; Langshan-Zhaertai; Zircon U-Pb; Muscovite Ar-39/Ar-40; ore enrichment; ore remobilization; metamorphic fluids
资金
- State Key Research Plan [2017YFC0601302]
- National Natural Science of Foundation of China [41872078, 41502069, 41672067, 41472072]
- Young Elite Scientists Sponsorship Program by CAST (YESS)
- Fundamental Research Funds for the Central Universities [FRF-TP-18-017A3]
The Jiashengpan Zn-Pb deposit is located in the Langshan-Zhaertai region of the North China Craton. Zinc-lead mineralization at the Jiashengpan shows characteristics of shear-zone controlled syn-metamorphic mineralization. The Ar-39/Ar-40 ages of syn-ore hydrothermal muscovite averages at similar to 380 Ma, suggesting that the Zn-Pb mineralization took place in the Devonian. These results agree with zircon U-Pb ages of post-ore granite, which constrain the ore formation to be older than 277 +/- 2 Ma. Ore formation was coeval with the emplacement of regional orogenic belts that formed as result of subduction associated with the closure of the eastern Paleo-Asian Ocean (similar to 400 Ma). The Jiashengpan deposit provides evidence for base metal mineralization associated with metamorphogenic and shear-zone controlled characteristics during continental-continental collision, stressing the significance of orogenic activities for enrichment of base metals.
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