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DETERMINATION OF MINERALIZATION EPOCH OF QUARTZ-VEIN TYPE TUNGSTEN DEPOSITS IN SHIXING REGION,NORTHERN GUANGDONG AND ITS GEOLOGICAL SIGNIFICANCE

Wei Jun-qi

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Abstract

The tungsten deposits in the Shixing region,northern Guangdong Province,are composed mainly of quartz-vein type ones.Based on the precise Re-Os dating of the molybdenites from the ore-hosted quartz vein,we obtained the ore-forming ages of 154.2±2.7 Ma(MSWD=0.29)for the Shigushan tungsten-bismuth deposit and 159.1±2.2Ma(MSWD=3.9)for the Shirenzhang tungsten deposit.It suggested that the deposits were the products of the peak time of Mesozoic large-scale mineralization in the Nanling region,South China.Our new data provide an important isotope chronological evidence for further study of the regional mineralization regularities and the guidance of regional prospecting.

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What this paper is about

The tungsten deposits in the Shixing region,northern Guangdong Province,are composed mainly of quartz-vein type ones.Based on the precise Re-Os dating of the molybdenites from the ore-hosted quartz vein,we obtained the ore-forming ages of 154.2±2.7 Ma(MSWD=0.29)for the Shigushan tungsten-bismuth deposit and 159.1±2.2Ma(MSWD=3.9)for the Shirenzhang tungsten deposit.It suggested that the deposits were the products of the peak time of Mesozoic large-scale mineralization in the Nanling region,South China.Our new data provide an important isotope chronological evidence for further study of the regional mineralization regularities and the guidance of regional prospecting.

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Available abstract

The tungsten deposits in the Shixing region,northern Guangdong Province,are composed mainly of quartz-vein type ones.Based on the precise Re-Os dating of the molybdenites from the ore-hosted quartz vein,we obtained the ore-forming ages of 154.2±2.7 Ma(MSWD=0.29)for the Shigushan tungsten-bismuth deposit and 159.1±2.2Ma(MSWD=3.9)for the Shirenzhang tungsten deposit.It suggested that the deposits were the products of the peak time of Mesozoic large-scale mineralization in the Nanling region,South China.Our new data provide an important isotope chronological evidence for further study of the regional mineralization regularities and the guidance of regional prospecting.

Key concepts: Geology, Mineralization (soil science), Prospecting, Tungsten, Geochemistry, Quartz, Mesozoic, Vein

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DETERMINATION OF MINERALIZATION EPOCH OF QUARTZ-VEIN TYPE TUNGSTEN DEPOSITS IN SHIXING REGION,NORTHERN GUANGDONG AND ITS GEOLOGICAL SIGNIFICANCE — Research Paper | ScholarLens