柴达木盆地东北缘柯柯地区铀矿化地质特征和找矿标志.PDF

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柴达木盆地东北缘柯柯地区铀矿化地质特征和找矿标志.PDF

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柴达木盆地东北缘柯柯地区铀矿化地质特征和找矿标志

31 4 Vol.31 No.4 2009 12 Journal of Earth Sciences and Environment Dec.2009 吴孔运,杜宗明,高利鹏 ( , 710024) :, , 、 , F 、F , , 4 5 , , 、 , 。F4 F5 。 :;;; :P619.14　:A 　:1672-6561(2009)04-0383-05 Mineralization Characteristics and Prospecting Potential of Uranium for Keke Area in the Northeastern Margin of Qaidam WU Kong-yun, DU Zong-ming, GAO Li-peng (Tw o one one Team , S haan x i Prov i ncia l N uclear I n dust ry Geo logy B urea u, X i an 710024, S haan x i, China) Abstract:According to field geological survey, roc sampling, and analysis of former geological, geochemical, geophysical data, the mineralization characteristics and prospecting potential of uranium in the Ke e region is probed.It is found that F thrust fault and F normal fault controlled the distribution and size of uranium deposits in Ke e region, 4 5 mica-quartz schist is the wallroc of uranium mineralization, metamorphic quartz sandstone is one of most rich uranium- hosting roc series, red alteration in metamorphic sandstone is the most obvious uranium guide of prospecting.It is also found that the pegmatite di es, lamprophyre di es and diorite-porphyrite di es are significantly related to uranium mineralization, and are also core guide of uranium prospecting.It is thought that the most prospecting potential zone lies between the downthrow of F reverse fault and hanging wall of F normal fault. 4 5 Key words:uranium mineralization;mineralization characteristics;NW-structure belts;core guide of prospecting 。, 0 　 20 80 。21 1