| 金矿床中长石天然热发光强度的标型意义 |
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| 引用本文： | 邵伟.金矿床中长石天然热发光强度的标型意义[J].现代地质,1987(Z1). |
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| 作者姓名： | 邵伟 |
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| 摘 要： | 对河北及山东4个金矿床中的交代成因钾长石与钠长石进行了天然热发光的研究,它们包括两种类型:一种为蚀变岩型(胶东夏甸金矿,河北高家店金矿);另一种为石英脉型(胶东金翅岭金矿,河北金厂峪金矿)。经研究发现,当接近矿化地段时,钾长石与钠长石天然热发光峰值增高,尤其是在富矿地段突然升高;在破碎带或受动力影响的长石,热发光峰值突然降低。因此长石天然热发光可用以指示交代作用,矿化作用与成矿后动力作用的空间位置,因而可以作为成因与找矿标志。
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TYPOMORPHIC SIGNIFICANCE OF INTENSITY OF NATURE THERMOLUMINESCENCE OF FELDSPARS IN SEVERAL GOLD DEPOSITS |
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| Abstract: | Natural thermoluminescence of feldspars of the alteration type in 4 gold deposits are in vestigated. Two of them belong to the wallrock alteration type, namely the Xiadian deposit in Shandong province and the Kaojia-dian deposit in Hebei province. The other two belong to the quartz vein type, including the Jinchiling deposit in Shandong province and the Jinchengyu deposit in Hebei province. It is found that in the vicinity of ores the peak of the thermoluminescence curve of potash feldspar and albite rises. It goes up abruptly where high-grade ore is met with and drops down suddenly where crushed zones occur. Therefore the natural thermoluminescence of feldspars of the alteration type can be used as indicators of hydrothermal alteration and location of ore-free and oretbearing blocks with different grades as well as the position of post-ore tectonism, |
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