通化大川地区稀有稀土矿找矿方向研究

Study on the prospective direction of rare metal and rare-earth mine in the Dachuan area of Tonghua City

通化大川地区在1:200 000水系沉积物测量中圈出了"通通-84-Hs-23"号组合异常,异常内出露的岩体为燕山期碱性花岗岩。通过对花岗岩特征研究,岩体有明显的分异特征,具备了产出稀有稀土矿产的地质条件。在异常区内开展了1:50 000水系沉积物地球化学测量工作,在碱性花岗岩分布区进一步圈出了稀有稀土异常套合区。综合了区域物化遥特征信息,圈出了重要的找矿远景区,在库仓围子远景区开展1:10 000地质填图和土壤测量工作,发现了多处矿化体,显示出该地区巨大的稀有稀土找矿前景。

Through 1：200 000 stream sediment survey, the ＂Tongtong-84-Hs-23＂ composite anomaly was delineated in the Dachuan area of Tonghua City. In geochemical anomaly areas, outcropped Yanshanian alkali granite. Based on the study of the granites, the results show that rock mass have the obvious differentiation features, and have geologic condition forming rare metal and rare-earth deposit. Through 1：50 000 stream sediment geochemical survey, and shows rare metal and rare-earth anomaly in the alkali granite areas. Based on an integrated study of the geophysical prospecting, geochemical exploration and remote sensing, shows a important area for rare metal and rare-earth deposit prospecting. Through 1：10 000 geological mapping and soil survey in the Kucangweizi prospect, several mineralized bodies were found, indicating that the huge prospecting prospect for rare metal and rare-earth mine.