摘要
大型矿集区的形成 ,是在地质历史演化进程中 ,多矿种大矿量超常聚集的结果。不同的矿集区有不同的典型矿种和典型矿床。本文仅以铀矿为例 ,在世界范围内厘定出 1 4个铀矿大型矿集区。本文研究铀矿大型矿集区时空分布规律与地球动力学演化的关系 ,在此基础上探讨了铀矿大型矿集区元素超常聚集规律 ,提出多矿种“点区超常聚集”和“短时限爆发成矿”特征。本文按照“源、运、积”3个环节 ,探讨铀矿大型矿集区的成矿作用 ,其中有关深源成矿、特殊碱质流体的水岩反应以及元素淀积环境的研究 ,为建立铀矿大型矿集区的找矿模式奠定基础。
The formation of large ore concentated are results from the anomalous concentration of multi mineral resources and large amount of ore materials during the process of geologic evolution history. Different ore concentrated areas are characterized by different typical mineral resources and typical ore deposits. This paper, taking uranium deposit as on example, recognizes 14 large ore concentrated areas of uranium deposit in the world, and studies the time space constraints of large ore concentrated areas of uranium deposits and their relation with geodynamic evolution, and on the above basis, discusses the unusual concentration of ore elements in large ore concentrated areas of uranium deposits, as well as proposes the characteristics of “unusual concentration in certain points and areas” and “explosion metallogeny in a short period of time” of multiple mineral resources. According to the three basic “links”, i.e. “source, transportation and precipitation”, this paper proposes the metallogeny of large ore concentrated areas of uranium deposits. Of them, the study on the deep source metallogeny, water rock intereaction of special alkaline fluid and precipitation environment has made a fundation for the establishment of prospecting model of large uranium ore concentration arcas.
出处
《铀矿地质》
CAS
CSCD
2001年第1期5-17,共13页
Uranium Geology
