2021年11月1日 · Hydrous skarn (wet or retrograde skarn) stage hosts the majority of W mineralization in the Zhazigou deposit and is characterized by the widespread development of scheelite. W mineralization is associated with hydrous calc-silicate minerals and pervasive quartz.

2018年11月1日 · The Niutangjie skarn W deposit is the largest W deposit in the mineralized domain around the Miao’ershan-Yuechengling batholith. It contains a total measured and indicated resource of ∼12.5 Mt at an average grade of ∼0.4% WO 3 (Luo et al., 2015, Tan, 1986), and is mainly hosted by the Cambrian Qinxi Formation (Fig. 3 a, b).

2005年1月1日 · Skarn deposits are one of the more abundant ore types in the earth’s crust and form in rocks of almost all ages. Skarn is a relatively simple rock type defined by a mineralogy usually dominated by calcsilicate minerals such as garnet and pyroxene.

2024年12月1日 · In-situ elemental analysis was conducted on garnet and scheelite from the Shibaogou deposit, a representative large-scale skarn Mo-W deposit in the Luanchuan orefield, Qinling orogen, aiming to constrain the origin and evolution of ore-forming fluid and to analyze the skarn mineralization process.

2023年4月23日 · Skarn, in geology, metamorphic zone developed in the contact area around igneous rock intrusions when carbonate sedimentary rocks are invaded by large amounts of silicon, aluminum, iron, and magnesium. Many skarns also include ore minerals; several productive deposits of copper or other base metals have been found in and adjacent to skarns.

2024年5月6日 · In deposits formed by Sn- and W-bearing granites, this separation may be due to the contrasting behavior of Sn and W during exsolution of a magmatic fluid or the scavenging of Sn by silicate minerals. We illustrate the separation of Sn and W for the world-class Zhuxi W skarn deposit (South China).

2019年1月1日 · Skarn deposits are one of the most common deposit types in China. The 386 skarns summarized in this review contain ~8.9 million tonnes (Mt) Sn (87% of China’s Sn resources), 6.6 Mt W (71%), 42 Mt Cu (32%), 81 Mt Zn-Pb (25%), 5.4 Mt Mo (17%), 1,871 tonnes (t) Au (11%), 42,212 t Ag (10%), and ~8,500 Mt Fe ore (~9%; major source of high-grade Fe ...

1992年12月12日 · Seven major classes of skarn deposits (Fe, W, Au, Cu, Zn, Mo and Sn) are briefly described, and relevant geological and geochemical features of important examples are summarized in a...

Here, we undertake a systematic analysis of major skarn minerals representing both prograde and retrograde metamorphic stages in the Huangshaping W–Sn polymetallic deposit, a typical W–Sn skarn deposit of the central Nanling magmatic–tectonic–metallogenic belt in South China …

2024年11月22日 · This study focuses on these issues and presents new backscattered electron (BSE) imaging, in-situ major element, trace element concentration, and O isotope data for four types of garnets with different spatial locations and textures from the …