Objective In recent years, a series of tungsten prospecting breakthroughs have been made in the southern Qinling Mountains. Especially, a new deposit type with a scheelite -beryl-molybdenite assemblage in the Zhen＇a...Objective In recent years, a series of tungsten prospecting breakthroughs have been made in the southern Qinling Mountains. Especially, a new deposit type with a scheelite -beryl-molybdenite assemblage in the Zhen＇an area of Shaanxi Province was firstly discovered. This deposit is currently in a detailed investigation stage, and no detailed study has been yet conducted. This work selected one molybdenite sample from the Be （W） ores in this deposit for Re-Os isotope measurements to define the time limit of tungsten and beryllium mineralization, and to further reveal the ore-forming geological setting of rare metals in the southern Qinling region.展开更多
Objective Located near the intersection of Yangtze craton, Tibet- Sanjiang orogen and Songpan-Ganzi orogen of Northwest Yunnan Province, the Mahuaping deposit is a unique large -scale tungsten-beryllium-fluorite ore ...Objective Located near the intersection of Yangtze craton, Tibet- Sanjiang orogen and Songpan-Ganzi orogen of Northwest Yunnan Province, the Mahuaping deposit is a unique large -scale tungsten-beryllium-fluorite ore deposit ever discovered in this area. In recent years, many studies have been carried out in Sanjiang Tethyan metallogenic belt and aforementioned adjacent regions. To date, however, little attention has been paid to this deposit, for example, the geochronology of Mahuaping W-Be deposit still remains unsolved. In this study, we have pioneered research about muscovite 40Ar-39Ar age to better understand the geochronology of the Mahuaping W-Be deposit.展开更多
基金financially supported by the China Postdoctoral Science Foundation(grant 2017M610960)China Geological Survey(grants No.DD20160346 and DD20160055)
文摘Objective In recent years, a series of tungsten prospecting breakthroughs have been made in the southern Qinling Mountains. Especially, a new deposit type with a scheelite -beryl-molybdenite assemblage in the Zhen＇an area of Shaanxi Province was firstly discovered. This deposit is currently in a detailed investigation stage, and no detailed study has been yet conducted. This work selected one molybdenite sample from the Be （W） ores in this deposit for Re-Os isotope measurements to define the time limit of tungsten and beryllium mineralization, and to further reveal the ore-forming geological setting of rare metals in the southern Qinling region.
基金supported by the Critical Research and Development Plan of the People’s Republic of China(Deep Resources Exploration and Exploitation Project)(grant No.2016YFC0600305)the National Natural Science Foundation of China(grant No.41602103)+1 种基金the program of Yunnan Gold&Mineral Group Co.,Ltd Program(Metallogenic Regularity and Minerogenetic Series Research of Gold Polymetallic Deposits in West Yunnan Province,China)Geological Survey Program(grant No.DD20160124)
文摘Objective Located near the intersection of Yangtze craton, Tibet- Sanjiang orogen and Songpan-Ganzi orogen of Northwest Yunnan Province, the Mahuaping deposit is a unique large -scale tungsten-beryllium-fluorite ore deposit ever discovered in this area. In recent years, many studies have been carried out in Sanjiang Tethyan metallogenic belt and aforementioned adjacent regions. To date, however, little attention has been paid to this deposit, for example, the geochronology of Mahuaping W-Be deposit still remains unsolved. In this study, we have pioneered research about muscovite 40Ar-39Ar age to better understand the geochronology of the Mahuaping W-Be deposit.
