江西省九瑞地区黄龙组层、相、位对层控矿床的控制

CONTROLS OF STRATA,SEDIMENTARY FACIES AND TECTONIC SETTINGS ON THE STRATABOUND DEPOSITS IN THE HUANGLONG FORMATION IN THE JIURUI REGION,JIANGXI

Northwest Jiangxi Geological Party, Jiangxi Bureau of Geology and Mineral Resources

摘要: 九瑞地区位于扬子准地台下扬子台坳之西段,南北分别与江南台隆、淮阳隆起毗邻,处于构造转折部位。已知矿床主要有斑岩型、矽卡岩型和层控型,其中层控型矿床的空间分布受区域地质背景中特定地层、岩相及构造部位的控制,具层、相、位控矿特点。矿床周围有大片志留系、石炭系、二叠系、三叠系地层出露,局部出露奧陶系地层。前奥陶系、侏罗系、白垩系地层分布于西南及东南边缘。

Abstract: On the basis of the detailed study of the main host strata (Huanglong Formation) and their sedimentary facies and palaeogeography in the Jiurui region, Jiangxi, the present paper discusses the principal features of combined ore control of strata, sedimentary facies and tectonic settings in the Huanglong Formation, and demonstrates that the important controls of the formation and distribution of the stratabound deposits in the study area include the Upper Carboniferous Huanglong Formation and its sedimentary pyrite horizons, Weiningian (Late Carboniferous) sedimentary facies and palaeogeographic environments and NWW-trending tectonic settings.