Study On The Relations Of Uranium Mineralization And Rock Alteration At Someplace In Liaoning Province

With the systematic sampling of the rock alteration of the uranium’s mineralizes in the different drill hole and the different depth, we have ground the polished section and thin slice, and we have carried out researching with the hand specimen, and we have also taken SEM chemical analysis to verify ours’research. All works is for the purpose of verifying the rock alteration characteristic of uranium mineralizes, examining the relations between uranium mineralization and the rock alteration by a new angle of view, excavating the rock alteration of the uranium mineralize and providing more effectively and timely information to instruct the uranium mine’s prospecting exploration work at the some place in Liaoning Province.Through massive researches, we have carried out Analysis and discussion of the rock alteration’s type and the rock alteration’s distribution in space and time. We also have carried out detailed studying on the relating rock alteration type, combines, scope, time and growth degree to the uranium mineralize. Finally we have represented the relationship with the uranium mineralize and the rock alteration.There are many types of the rock alterations in research region. Such as Hydromicazation, Pyritization, Chloritization, Hematitization, Zoisitization, Carbonatation and Silication. Hydromicazation was mainly changed by the plagioclase feldspar alteration. Chloritization was mainly changed by the black mica alteration. Hydromicazation should be earlier than the uranium metallogenic period, and provide a good environment for the uranium mineralization. Chloritization and Hematitization belong to the metallogenic period alteration.There are many types of the rock alterations in research region. Such as hydromicazation, pyritization, chloritization, hematitization, zoisitization, carbonatation and silication. Hydromicazation mainly changed by the plagioclase feldspar alteration. Chloritization mainly changed by the black mica alteration Hydromica should be earlier than the uranium metallogenic period. And provide a good environment for the uranium mineralization. Chloritization and hematitization belong to the metallogenic period alteration.The rock alteration can be divided into three stages:①Pre-mineralization period: silication-hydromicazation-zoisitization;②Metallogenic period:chloritization-hematitization;③Post-mineralization period:silication-carbonatation-ferritization.In space, the alteration from top to bottom is hydromicazation belt, hydromicazation-chloritization belt, hydromicazation-chloritization-hematitization belt, respectively. In which, the chloritization superimposed above hematitization, whereas hematitization superimposed above chloritization and hydromicazation. The horizontal zonation order that from the orebody to the rock alteration is hematitization, chloritization, hydromicazation, all of which distribute symmetrically.There are some close relationships of the uranium mineralization in the research region:chloritization, hematitization, hydromicazation. High-grade ore is closely related with hematitization and chloritization. The structure crevasse filled by the chloritization aggregation and the uranium mineralization are obvious. Hematitization decompose for sepia hematite and brick red hematite two types. Under the sepia hematite mirror the author discovered big pieces of chlorite alteration. The sepia hematitization and the chloritization folds together which is remarkable for the uranium mineralization. The intensity of rock alteration is more greater, more types of species, and the more superposition, so the uranium mineralization is richer.