龚由勋, 高秉璋, P.R.Simpson. 1987: 关于江西省岩浆作用、构造作用与成矿作用之间关系的新认识. 地质通报, (2): 97-103+128.
    引用本文: 龚由勋, 高秉璋, P.R.Simpson. 1987: 关于江西省岩浆作用、构造作用与成矿作用之间关系的新认识. 地质通报, (2): 97-103+128.
    GONG You-xun, GAO Bing-zhang, P.R.Simpson. 1987: THE RELATIONSHIP BETWEEN METALLOGENY, MAGMATISM AND STRUCTURE IN JIANGXI PROVINCE, A NEW INTERPRETATION. Geological Bulletin of China, (2): 97-103+128.
    Citation: GONG You-xun, GAO Bing-zhang, P.R.Simpson. 1987: THE RELATIONSHIP BETWEEN METALLOGENY, MAGMATISM AND STRUCTURE IN JIANGXI PROVINCE, A NEW INTERPRETATION. Geological Bulletin of China, (2): 97-103+128.

    关于江西省岩浆作用、构造作用与成矿作用之间关系的新认识

    THE RELATIONSHIP BETWEEN METALLOGENY, MAGMATISM AND STRUCTURE IN JIANGXI PROVINCE, A NEW INTERPRETATION

    • 摘要: 本文以三板块构造模式解释江西省成矿作用的发展。认为中朝、扬子、华南三板块的边缘类似于安第斯型,它们与辛普森等人研究过的英国加里东地区、海西地区的岩浆作用和成矿作用完全可以对比。

       

      Abstract: Granite magmatism and the associated metallogeny for which Jiangxi Pro- vince is renowned are considered in relation to a plate tectonic model which envisages the suturing of three separate continental fault blocks or plates which are thought to have existed as separate continental plates until the Permian, namely the Sino-Korean, Yangtse and South China Plates. This was followed by the cratonisation of the continental landmass of south- eastem China and the developmemt of the southeastern plate margins of the new continent in the circum-Pacific zone. The post-suture magmatic intrusions were emplaced during tbe cratonising event ard their magma type and associated ore deposits are shown to vary sys- tematcally in relation to destructive plate margi ns which are thouht to have formed along all the plate boundaries between the continental plates. The granitic intrusions range from more proximal porphyires of Cu, Cu-Mo and W-Cu type to more distal granites of W-Sn-F-U-Nb-REE type. All of these intrusions, which are strongly discordant, have well developed thermal aureoles and range in age from Indosinian to Yanshanian (but mainly the latter), were intruded along major lithospheric fracture zones, with sinistral strike slip. These metallogenic granites, which were all intruded postectonically or after the suturing events, are considered to be essentially of juvenile magmatic ori- gin. Such a model helps to account for the well developed metallogeny of Jiang- xi Province which yields Cu (Mo-W) porphyries distrubuted along both the Limits and South China plates. Four such zones maybe distinguished within the boundaries of the province. More distally from the destrucive margins W-Sn-F (U-Nb-REE) granites are intruded in the central zones of both plates, and these are also associated with major ore deposits, espeoially where the granites are intruded into lower Palaeozoic low-grade metamorphic basement which provided abundant fluids for hydrothermal circulation systems. The Sino-Korean-Yangtse-South China Plate boundaries are therefore es- sentially of Andean type and they can also be closely compared with those pre- viously proposed to account for the magmatism and metallogeny of the British Caledonides by Simpson et al, Plant et al and British Hercynides by Watson. Fowler and Simpson.

       

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