| 约旦南部瓦迪巴希亚地区铀矿化地球物理特征 |
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| 引用本文： | 赵希刚,李胜祥,梁陕明,邓小卫,王金平.约旦南部瓦迪巴希亚地区铀矿化地球物理特征[J].国外铀金地质,2010(3):178-181. |
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| 作者姓名： | 赵希刚 李胜祥 梁陕明 邓小卫 王金平 |
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| 作者单位： | [1]核工业203研究所,陕西咸阳712000 [2]中国国核海外铀业有限公司,北京100822 |
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| 摘 要： | 通过对瓦迪巴希亚（Wadi Bahiya）地区开展地质调查、岩石取样分析以及地面γ能谱测量等综合研究,认为研究区铀矿化主要产于上白垩统—古新统MCM组近地表风化破碎的灰褐色砂土状泥灰岩之中,矿化类型为现代氧化作用成因的钙结岩型,研究区γ能谱测量铀质量分数平面特征表现为异常规模小,晕圈梯度变化大,深部揭露表明,自近地表向深部铀质量分数逐渐降低,岩石取样分析结果与γ能谱测量具有对应性,铀矿化主要位于地表以下0.5～1.5m的范围内。
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| 关 键 词： | 钙结岩型铀矿化 地球物理特征 瓦迪巴希亚地区 |
Geophysical features of uranium mineralization in Wadi Bahiya area,southern Jordan |
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| Authors: | ZHAO Xi-gang LI Sheng-xiang LIANG Shan-ming DENG Xiao-wei WANG Jin-ping |
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| Institution: | 1.Research Institute No.203,CNNC,Xianyang,Shaanxi 712000,China) 2.China Uranium Corporation Limited,Beijing 100822,China) |
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| Abstract: | Based on comprehensive study of geologic survey,sample analysis and ground gamma spectral survey,it is concluded that the uranium mineralization in Wadi Bahiya area,southern Jordan occurs near surface and is mostly hosted in weathered gray-brown chalk marl of Muwaqqar Chalk Marl Formation of the Upper Cretaceous and Paleocene,and belongs to surficial calcrete-type which is related to modern oxidation.The ground gamma spectral survey shows that surface anomaly area is small and big gradient change of the anomalies.The trenches reveal that uranium content of the anomalies falls down from near-surface to the deep.The analytical results of the samples from the area correspond with the gamma spectral measurements,demonstrating that uranium mineralization is mainly located within the depth between 0.5 and 1.5 m. |
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| Keywords: | calcrete-type uranium mineralization geophysical features Wadi Bahiya area |
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