Next Article in Journal
Editorial for Special Issue “Fluid Inclusion Characteristic of the Gold Deposit and Its Implication for Ore Genesis”
Previous Article in Journal
The Role of Gangue Mineralogy on Flowsheet Development in Fluorite Processing
Open AccessArticle

Coupled U–Pb Geochronology of Monazite and Zircon for the Bozhushan Batholith, Southeast Yunnan Province, China: Implications for Regional Metallogeny

by Taotao Yan 1,2,*, Dongsheng Liu 1,2, Chen Si 3 and Yu Qiao 1,2
1
Key Laboratory of Geochemical Exploration, Institute of Geophysical and Geochemical Exploration (IGGE), Chinese Academy of Geological Sciences, Langfang 065000, China
2
UNESCO International Centre on Global-scale Geochemistry (ICGG), Langfang 065000, China
3
State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(3), 239; https://doi.org/10.3390/min10030239
Received: 7 February 2020 / Revised: 1 March 2020 / Accepted: 4 March 2020 / Published: 6 March 2020
Constraining the duration of magmatism is of vital importance to the understanding of the magmatic-hydrothermal mineral system. The Bozhushan batholith, located in the middle section of the southeastern Yunnan ore district, mainly consists of biotite monzogranite and monzogranite. Many Sn–W–polymetallic deposits are developed around the Bozhushan batholith, but their temporal and genetic relationships remain controversial. LA-ICP-MS U–Pb zircon and monazite dating were respectively conducted on the same two samples, yielding weighted mean 206Pb/238U zircon ages of 85.1 ± 0.7 and 85.6 ± 0.9 Ma, and weighted mean 206Pb/238U monazite ages of 87.1 ± 0.9 and 88.1 ± 1.1 Ma. The crystallization ages of S-type granites obtained from the zircon U–Th–Pb system and monazite U–Th–Pb system are consistent within the analytical errors. After combining the new ages obtained in this study with recently published U–Pb zircon and cassiterite ages from the giant Baniuchang Ag–Sn–Pb–Zn deposit in the north, and U–Pb zircon and Re-Os molybdenite ages from the large Guanfang W deposit in the south, a temporal framework of magmatism-mineralization in the Bozhushan region has been established. The duration of magmatic activity at Bozhushan is about 7 Ma, with W mineralization occurring at ca. 92 Ma and Sn mineralization at 88–87 Ma. View Full-Text
Keywords: monazite; zircon; LA-ICP-MS U–Pb; Bozhushan batholith; southeastern Yunan ore district monazite; zircon; LA-ICP-MS U–Pb; Bozhushan batholith; southeastern Yunan ore district
Show Figures

Figure 1

MDPI and ACS Style

Yan, T.; Liu, D.; Si, C.; Qiao, Y. Coupled U–Pb Geochronology of Monazite and Zircon for the Bozhushan Batholith, Southeast Yunnan Province, China: Implications for Regional Metallogeny. Minerals 2020, 10, 239.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop