| 全国铀矿资源潜力评价重力数据处理与研究 |
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| 引用本文： | 刘祜,韩绍阳,赵丹,柯丹,李必红.全国铀矿资源潜力评价重力数据处理与研究[J].铀矿地质,2012(6):370-375,387. |
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| 作者姓名： | 刘祜 韩绍阳 赵丹 柯丹 李必红 |
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| 作者单位： | [1]核工业北京地质研究院,中核集团铀资源勘查与评价技术重点实验室,北京100029 [2]中国核科技信息与经济研究院,北京100048 |
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| 基金项目： | 中国地质调查局“全国铀矿资源潜力评价”项目（编号：1212011121042）资助 |
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| 摘 要： | 通过对全国39个铀成矿带和29个预测区的重力数据处理、重力异常提取、地质构造推断,为全国铀矿资源潜力评价提供了构造单元、断裂构造、岩体范围及深度、盆地范围和地层结构等预测要素。总结了铀成矿环境的重力场特征,与热液成矿作用有关的铀矿（花岗岩型、火山岩型、及部分碳硅泥岩型）主要位于区域重力场从高场向低场过渡的部位或偏向低场区域,主要成矿要素花岗岩岩体、火山盆地均表现为重力低场;大型砂岩型铀矿成矿盆地位于区域重力场的高场区域,而蚀源区则为低场,盆地边缘或内部的隆起区一般位于剩余重力高场区;与上述各类型铀成矿有密切关系的断裂构造在重力场中显示为梯度带、不同性质重力异常的分界线、串珠状异常或条带状异常。
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| 关 键 词： | 铀资源 潜力评价 重力数据处理 重力异常 重力场特征 |
Gravity data Processing and Research in Potential Evaluation of Uranium Resource in China |
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| LIU Hu,HAN Shao-yang,ZHAO Dan,KE Dan,LI Bi-hong.Gravity data Processing and Research in Potential Evaluation of Uranium Resource in China[J].Uranium Geology,2012(6):370-375,387. |
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| Authors: | LIU Hu HAN Shao-yang ZHAO Dan KE Dan LI Bi-hong |
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| Institution: | 1.CNNC Key Laboratory of Uranium Resource Exploration and Evaluation Technology,Beijing Research Institute of Uranium Geology,Beijing 100029,China;2.China Research Institute of Nuclear Technical Information and Economy,Beijing 100048,China) |
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| Abstract: | Through data processing,anomaly extraction,geologic structure deduction from gravity in 39 uranium metallogenic zones and 29 prediction areas,the predicting factors such as tectonic units,faults,scope and depth of rocks,scope of basins and strata structure were provided for the evaluation of uranium resources potential.Gravity field features of uranium metallogenic environment were summarized for hydrothermal type uranium deposits（granite,volcanic and carbonate-siliceous-argilaceous type） as regional gravity transition from high to the low field or the region near the low field,and the key metallogenic factors as granite rocks and volcanic basins in the low gravity field.It was found that Large-scale sandstone type uranium mineralization basins are located in the high regional gravity field,provenance areas are in the low field,and the edge and inner uplift areas usually located in the high field of the residual gravity.Faults related to different type uranium mineralization occurre as the gradient zones,boundaries,a string of bead anomalies and striped gravity anomalies in the gravity field. |
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| Keywords: | uranium resources potential evaluation gravity data processing gravity anomaly feature of gravity field |
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