陕西省旬阳县红花坪锌矿床地质地球化学特征及成因探讨

Study on Geological and Geochemical Characteristics and Origin of Honghuaping Zinc Deposit in Xunyang County of Shaanxi Province

摘要:

通过对陕西省旬阳县红花坪锌矿床的地质矿产勘查，已圈出I1锌矿体和一些单工程控制的规模较小的铅锌矿化体。已获得锌资源量7.43×104t；工程控制矿体长990m，斜深393m，矿体厚0.44～11.35m，平均厚2.65m，Zn含量0.96%～23.85%，平均6.14%；Pb含量0.01%～1.28%，平均0.13%。通过对红花坪锌矿床的矿体及矿物岩石特征、矿床地质地球化学特征、成矿年龄及成矿温度压力特征等进行了分析和讨论，认为该矿床为热液改造型矿床。

Abstract:

Through geological and mineral resources exploration in Honghuaping zinc deposit in Xunyang county of Shaanxi province, I1 zinc ore body and some small magnitude ore bodies controlled by single geological construction have been circled. The already determined reserve of zinc resource is 7.43×104t, the engineering controlling length of ore body is 990m, and the inclined depth is 393m. Thickness of ore body is 0.44~11.35m, and average thickness is 2.65m; the grade of zinc is 0.96%~23.85% and average grade is 6.14%. The grade of lead is 0.01%~1.28% and average grade is 0.13%. In this paper, through analysis on characteristics of ore bodies and mineral resources, geological and geochemical characteristics, geological structures of deposits, the age of mineralization and its origin, it is regarded that Honghuaping zinc deposit is a hydrothermaltransformation type zinc deposit.