Cenozoic Tectonic Evolution and Its Influence on Uranium Mineralization in Kelulun Depression,Hailar Basin
Kelulun depression are believed to be a new resource area for coal,oil and gas.However,low level of exploration and research on basic theories and key ore control elements of uranium,no breakthroughs were gotten in uranium exploration.This article systematically analyzed structural evolution and the control effect on uranium mineralization.With the view of mineralization system,the process of"source-transport-storage-transformation-preservation"was studied,and it was believed that the tectonic compression activity at the end of Nantun Formation and Yimin Formation is conducive to the uplift and erosion of Adunchulu pluton which provided uranium sources for the depression.At the same time,the tectonic evolution controls the distribution of the depression fan delta.It can be inferred that Yimin Formation has been originated to the uranium provenance area since its sedimentation,and result in the uranium mineralization process till present.
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