Structure Characteristics and Uranium-bearing Prospect of Longwantong Sinking, Kailu Basin
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摘要: 可地浸砂岩型铀矿指赋存于沉积盆地砂岩中的后生型铀矿床, 分布范围较广, 并且此类铀矿资源在世界铀资源所占份额越来越大, 是我国目前主要的工业铀矿化类型。松辽盆地是我国北方六大中新生代盆地之一, 砂岩型铀矿成矿条件潜质好。一直以来是诸多铀矿地质研究者所关注的盆地, 其中以开鲁盆地最为典型, 特别是钱家店凹陷, 其含铀层位的地球物理特征明显, 与油伴生, 成矿远景好。本文主要对与钱家店凹陷毗邻的松辽盆地西南部的开鲁盆地哲中凹陷中的龙湾筒凹陷进行地球物理资料深入分析研究, 利用三维地震资料, 通过对含铀目的层地震属性特征的处理分析, 对研究区的构造形态、目的层物性变化及铀成矿前景进行初步预测, 圈定了有利铀成矿潜力区域, 为后续铀矿勘探和研究提供参考。Abstract: In-situ leachable sandstone-type uranium deposits are epigenetic uranium deposits occurring in sandstones in sedimentary basins.These uranium deposits are widely distributed, and account for a significant share of the world’s uranium resources.At present they are the main industrial uranium mineralization type in China.The Songliao basin is one of the six major Mesozoic and Cenozoic basins in North China.Within the Songliao basin is the Kailu Basin, which is a typical basin for uranium deposits, particularly the Qianjiadian deposit.The uranium bearing horizon in the basin has evident geophysical characteristics, and has a good metallogenic prospect.Moreover, it is also associated with oil.This study discusses the Kailu basin in the southwest Songliao basin in Longwantong sinking.Uranium mineralization and prospect was analyzed using geophysical data.To determine the morphology and physical properties of the uranium deposit, an analysis was conducted with 3D seismic data based on the uranium objective layer and seismic characteristics.Delineating the potential locations for uranium mineralization provides a reference for subsequent uranium exploration and research in this area.
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Key words:
- uranium resources /
- Kailu Basin /
- Longwantong sinking /
- geophysics /
- prospect forecast
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