摘要
通过系统总结 ,首次将陕西省主要矿床初步划分为 4个矿床成矿系列组合 ,2 2个成矿系列类型 ,4 2个成矿系列和若干亚系列。其中省内金矿床的主要成矿系列为燕山期与变质—岩浆热液有关的金多金属矿床成矿系列、略勉板内结合带与岩浆热液有关的金矿成矿系列、商丹板块对接带与变质热液有关的金矿床成矿系列、现代河流中的冲—洪积砂金矿床成矿系列、与热水渗滤作用有关的金矿床成矿系列及活动区造山带与碱性碳酸盐类有关的金矿床成矿系列类型 ,银矿床的主要成矿系列为复理式建造中的菱铁矿银多金属矿床成矿系列 ,铜矿床的主要成矿系列为与元古代中—酸性岩有关的铁铜矿床成矿系列、加里东—印支期与中性—酸性花岗岩类有关的铁铜金钨萤石矿床成矿系列、与海相中基性火山岩有关的铜锌矿床成矿系列、前寒武系变质火山岩中的铜锌黄铁矿床成矿系列 ,钼矿床的主要成矿系列为与中酸性浅成—超浅成小岩体 (斑岩 )有关的钼铁铜矿床成矿系列 ,铅锌矿床的主要成矿系列为海底热液喷流—沉积铅锌矿床成矿系列、与热水渗滤作用有关的铅锌矿床成矿系列、海底喷流沉积—热液改造铅锌铜矿床成矿系列 ,汞锑矿床的主要成矿系列为与热水渗滤作用有关的汞锑矿床成矿系列 ,重晶石矿床的主要成矿系列为寒武系—奥陶系中的钒钼重?
Based on systematical summarization, the major mineral deposits occurring in Shaanxi province have been firstly compartmentalized into 4 serial compositions of mineral deposits, including 22 serial types of mineral sequences, 42 mineral sequences and some sub sequences. The dominant mineral sequences of gold deposits in Shaanxi province include the gold and polymetallic mineral sequences that are related to the Yanshanian metamorphic magmatic hydrothermalism, the mineral sequences relevant to metamorphic hydrothermal liquid in the juncture of the Shang Dan Plates, alluvial pluvial placer gold sequences in present rivers, the mineral sequences relevant to hydrothermal filtration and the gold mineral sequences relevant to alkali carbonates in active orogenic belt; the major mineral sequences of silver deposits are the siderite silver polymetal sequences in flysch formation; the major mineral sequences of copper deposits are related with the iron copper deposits in the Proterozoic medium acid rocks; the iron copper gold tungsten fluorite mineral sequences relevant to medium acid granitoid of the Caledonian and Indo Sinian epoch; the copper zinc deposits relevant to marine medium basic volcanic rocks; the copper zinc pyrite mineral sequences relevant to the Precambrian metamorphosed volcanic rocks; the major mineral sequences of molybdenum deposits appear as molybdenum iron copper deposits relevant to medium acid small rock masses (phorphyry); the mineral sequences of lead zinc deposits were related to submarine hydrothermal eruption sedimentation, to hydrothermal filftration and submarine eruption and sedimentation hydrothermal reformation; the mineral sequences of mercury antimony deposits were related to hydrothermal filtration; the mineral sequences of barite deposits are vanadium molybdenum barite phosphorite pyrite stone coal deposits related to the Cambrian Ordovician systems and the barite uranium stone coal deposits in the Lower Silurian System; the major mineral sequences of coal deposits are the coal oil shale deposits in large scale inner continental basins and the coal aluminum pyrite clayrock kaolinite deposits relevant to continental oceanic alternating sediments; the major mineral sequences of rock salt deposits occur in the rock salt (soda) deposits in the Ordovician System.
出处
《陕西地质》
2003年第2期1-18,共18页
Geology of Shaanxi
关键词
矿床
成矿系列
规划
陕西
Shaanxi
deposit
mineral sequence
compartmentation
