加拿大阿萨巴斯卡盆地Maybelle河与Sue C铀矿床特征对比  

The contrast of Maybelle River and Sue C uranium deposits in Athabasca Basin, Canada

作　　者：张明林[1] 管太阳[1,2] 罗毅[3] 

机构地区：[1]东华理工大学,江西抚州344000 [2]中钢矿业开发有限公司,北京100080 [3]核工业北京地质研究院,北京100029

出　　处：《世界核地质科学》2009年第3期141-145,共5页World Nuclear Geoscience

摘　　要：Maybelle河与SueC铀矿床分别位于加拿大阿萨巴斯卡盆地西、东部,铀矿化受区域性不整合面和构造控制,蚀变强烈,铀矿化具有明显热液成矿的特征,而且成矿年龄相近。最新的勘查开发结果和研究显示,虽同属于不整合面型矿床大类,但二者存在明显差异。Maybelle河铀矿床基底绿泥石化强烈,矿体正位于不整合面之上;而SueC矿床Cu含量高于V,且矿体位于不整合面之下,矿体受构造控制更为明显。这些异同点对于进一步认识不整合面型铀矿的特点,并指导勘探实践意义重大,且其差异性又丰富了不整合面型铀矿的成矿模型,开阔了寻找该类型矿床的勘查思路。Located respectively in the west and east of Athabasca Basin, Canada, Maybelle River and Sue C uranium deposits are both of unconformity-type mineralization which is characterized by the control of the regional unconformity, structure, strong alteration and similar age. But the latest findings of exploration and study have shown that there are obvious differences between them. Maybelle River uranium mine has a basement of strong chloritization, and the ore body is located above the unconformity; while in Sue C deposit, Cu content is higher than V and the ore body is located under the uneonformity and the ore bodies are controlled by the structure more directly. This founding is significant to the further understanding of characteristics of the unconformity-type uranium deposits and the guiding of exploration practices.

关 键 词：阿萨巴斯卡盆地 不整合面型 铀矿床特征 

分 类 号：P611[天文地球—矿床学] P619.14[天文地球—地质学]