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晚古生代期间,粤北半地堑式裂陷盆地受控于华南大板块内的三叉张裂盆地系统.沉积盆地演化阶段包括:基底上隆、张裂、沉陷(三角洲充填)、下沉和封闭阶段.海西期盆地演化史中的沉陷至稳定早期阶段对热水成矿有利.热水(喷气)沉积矿床一般具有“三明治”式的矿石序列:底板蚀变(脉状矿石)→整合块状硫化物矿体→顶板蚀变或喷气盖层以及矿层底部见有爆发和沸腾特征.热水沉积(喷气)岩具有负的δ~(13)C和δ~(18)O值、低于正常海相硅质岩的δ~(18)O值和强烈的Eu正异常REE模式.晚古生代旋回可识别出5个与矿化层位有关的热事件:中泥盆统、上泥盆统、中石炭统、下二叠统和上二叠统.区内块状硫化物矿床绝大多数是盆地扩张期热事件的产物,而某些矿床(例如金、银、铜)则是盆地封闭阶段——印支运动(T_3—J_1)的产物.
During the Late Paleozoic, the northern half-graben rift basin in Guangdong was controlled by the system of the trigeminal rifting in the large plate of the South China. The evolutional stages of the sedimentary basins included uplift of the basement, fracture, subsidence (delta filling), subsidence and closure Stage.The evolution of the Hercynian basin from the subsidence to the stable early stage is beneficial to the hydrothermal mineralization.The hot-water (jet) sedimentary deposits generally have the “sandwich” type of ore sequence: floor alteration (vein ore) → integration The sulfide-like ore bodies → roof alteration or gas cap and the bottom of the orebodies show the characteristics of eruption and boiling. The hydrothermal sedimentary (jet) rocks have negative δ ~ (13) C and δ ~ (18) O values below Δ 18 O values of normal marine siliceous rocks and intense Eu normal anomaly REE patterns. Five Lateral Paleozoic cycles identified five thermal events associated with the mineralized beds: the Middle Devonian, the Upper Devonian , The Carboniferous, the Lower Permian and the Upper Permian.The vast majority of massive sulphide deposits in the area are the product of thermal expansion events in the basin, while some deposits (eg, gold, silver and copper) are closed Stage - the product of the Indo-Chinese Movement (T_3-J_1).