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The Thermoelectric Coefficient of Pyrites in the Mengqiguer Deposit of the Yili Basin
Author(s) -
XIU Xiaoqian,
SUO Shixin,
LIU Hongxu,
ZHANG Yuyan,
ZHANG Xiao,
PAN Chengyu
Publication year - 2014
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.12381_32
Subject(s) - beijing , uranium , geology , mining engineering , china , earth science , archaeology , geography , physics , nuclear physics
The thermoelectric coefficient of pyrites related to their content and species of trace elements,and the trace element of pyrites is closely related with its formation condition. Generally speaking, the impurity ion of mineral enter the crystal lattice as a high valence at high temperature, Iron element is supersaturated in High temperature pyrites(sulphur vacancy),making the thermoelectric conduction type of pyrite is character N. and the impurity ion of mineral enter the crystal lattice as a low valence at low temperature, sulphur element is supersaturated in low temperature pyrites(Iron vacancy), making the thermoelectric conduction type of pyrite is character P. The trace elements and the thermoelectric coefficient are different from a variety of formation conditions, we can learn the character of pyrites from the thermoelectric coefficient. We choose 500 grains form 10 samples in Mineralized zone and surrounding rocks from Mengqiguer uranium deposit, washing them in the alcohol with ultrasonic for wiping the oxidation film and impurities off. This experiment achieved by using the instrument measuring thermoelectric coefficient No. BHTE-06 (making by Beijing university of aeronautics and astronautics) in genetic mineralogy lab, china university of gensciences (Beijing), setting conditions T = 60±2°C.