Application of Spectroscopic Characteristics of White Mica in Porphyry Tungsten Deposits: A Case Study Involving the Shimensi Deposit in Northern Jiangxi

Shortwave infrared (SWIR) technology is characterized by high efficiency and convenience widely used in the mineral exploration of porphyry, epithermal, skarn types. However, studies on SWIR spectral features porphyry tungsten deposits are still lacking. The Dahutang deposit has reached an ultra large scale, type. Based white mica its petrographic, geochemical, Raman features, this paper discusses use shortwave major trace element contents for Shimensi mine Dahutang. results showed that wavelength single-frequency Al-O-H absorption peak position (Pos2200) micas ore-bearing intrusions were over 2209 nm; shift aluminium atom bridge-bonds (Al, O (br)) mainly located between 410 420 cm−1. Si, Fe, Mg relatively high; Al, Na, K low; variation Nb/Ta value reflected magmatic evolution degree. Pos2200 a correlation with other elements. This study shows useful further area provided potential tool deposits.