Geochemical characteristics of rare earth elements and genesis analysis of Qinglongshan fluorite deposit in Quannan County of Jiangxi
This paper aims to discuss the geochemical characteristics and genesis of Qinglongshan fluorite de-posit in Quannan County of Jiangxi Province.Rare earth elements of the ore and surrounding rock samples are analyzed for Qinglongshan fluorite deposit.The average content∑REE of Qinglongshan fluorite ores is 88.186 × 10-6,δEu is 0.23-0.61 and 8Ce is 0.78-0.91.The average content ∑ REE of the surrounding rocks is 184.52× 10-6,δEu is 0.31-0.69 and 8Ce is 0.85-1.REE distribution patterns of fluorite ores and sur-rounding rocks have similarity and synchronization,showing a right-leaning type of relative enrichment of light rare earth elements with moderate loss of Eu and weak loss of Ce.The rare earth geochemical study re-sult of ore and surrounding rock indicates that there are at least two metallogenic stages in the fluorite depos-it,which are magmatic hydrothermal mineralization.The mineralization environment is a stable and relative-ly reducing condition,and the temperature of the ore-forming fluid is about 200℃.
Qinglongshan fluorite depositrare earth elementsgeochemical characteristicsQuannan County of Jiangxi