吉林通化集安蛇纹石质玉的矿物成分与成因分析

发布时间：2018-06-04 09:08

本文选题：利蛇纹石 + 橄榄石　；参考：《岩石矿物学杂志》2016年02期

【摘要】：吉林通化集安地区发现了储量较大的蛇纹石质玉石矿床.X射线荧光光谱分析(XRF)显示蛇纹石质玉石中Si O2含量为35.21%~37.18%,Mg O 46.94%~49.72%,Fe O/Fe2O3之比在0.174~0.685之间.XRD分析显示在0.733 nm、0.366 nm和0.250 nm处存在有利蛇纹石的特征衍射峰.集安蛇纹石质玉主要矿物为利蛇纹石,并常含有镁橄榄石.红外光谱显示在3 650~3 700 cm-1、950~1 100 cm-1、400~700 cm-1存在有特征的利蛇纹石吸收峰.本玉石矿床属区域变质型蛇纹石矿床,利蛇纹石应为橄榄石在低温条件下水热蚀变的产物.
[Abstract]:X-ray fluorescence spectroscopy (XRF) analysis of serpentine jade deposits in Tonghua Ji'an area, Jilin Province shows that the content of Sio 2 in serpentine jade is 35.21 100% and 37.18% respectively. The ratio of mg O 46.94 and mg O 46.94 to Fe O/Fe2O3 is between 0.174 and 0.685. XRD analysis shows that the content of Sio _ 2 in serpentine jade is between 0.366nm and 0.250 nm. There is a characteristic diffraction peak in favor of serpentine. The main mineral of chrysotile jade in Ji'an is serpentine, and often contains forsterite. Infrared spectra showed that there was a characteristic absorption peak of serpentine at 3 650 cm-1950~1 100 cm-1400~700 cm-1. This deposit belongs to the regional metamorphic serpentine deposit, and serpentine should be the product of low temperature water thermal alteration of olivine.
【作者单位】：长春工程学院勘查与测绘工程学院;
【基金】：吉林省教育厅资助项目(120140051)~~
【分类号】：P619.28

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