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Tectonic Evolution and Uranium Metallogenetic Process of Chagannuoer Basin

Author: LiuHongXu
Tutor: GuoHua
School: Nuclear industry, Beijing Institute of Geology
Course: Mineral prospecting and exploration
Keywords: Tectonic evolution Texture and structure of the basin Uranium mineralization Chagannuoer basin
CLC: P619.14
Type: Master's thesis
Year: 2003
Downloads: 12
Quote: 1
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Abstract


This article with basin Chagannuoer is the object of study , discussed in detail the different stages of the tectonic evolution of the basin on the basis of the analysis of the tectonic evolution , control its impact conditions of sandstone-type uranium mineralization and uranium mineralization . Field geological and hydrogeological investigations , terrestrial gamma- ray spectrometry , and sample test analysis and information to consolidate that , due to the early evolution of the basin structure , three nights faults control the basin structure there are differences in things , the eastern graben rift structure , western rift graben structure ; deposited filling sequence and post - transformation characteristics based on the basin , the basin evolution can be divided into two stages basin development and post- transformation , and this basis discusses system-on basin development stage faulted the initial period , the rift expansion period , the rift with stable , shrinking rift , rift evolution of the demise of the characteristics ; basin fill tectonic uplift in the region , the background , the whole deletion late Cretaceous - Early Tertiary deposition , resulting in ore target layer and Yimin 2-3 segments directly exposed to the surface , and the western part of the basin due to the uplift of the west side of Khan ula uplift layer ore purposes tilted formed constructed ramp area conducive to uranium mineralization , and thus the development of a comprehensive groundwater recharge - runoff - excretion of water power systems , and to create the conditions for long-term infiltration of uranium oxide water ; affected by the structural development of the basin characteristics affect its later reformation type of uranium mineralization north - south differences , mainly the lot uranium mineralization in the southern part of the basin Guninghundi Water Oxidation Zone Type , the lot the northern Ha Shating hudag uranium mineralization while localized layer oxidation zone -type - based ; starting from the basin tectonic evolution of the uranium mineralization is divided into the mineralization period before mineralization stage mineralization after three stages .

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CLC: > Astronomy,Earth Sciences > Geology > Of ore deposits > Deposit classification > Radioactive elements > Uranium
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