摘要
豫西外方山金矿集中区的物探数据处理结果及其地质解释说明：伏牛山杂岩基属中深岩浆成因，呈南陡北缓侵入于熊耳群地层中，在浅部呈两个较小的岩基，它们分别是太山庙和合峪岩体，这两个岩体与浅部的脉岩系同源产物；与脉岩相伴的金矿床分布在这两个较小岩基北侧的断裂中，在金矿集中区的下部，物探数据向下延拓处理结果表明有隐伏岩体，它们可能是金矿床形成的热动力和矿质的来源（至少是部分）。在重力异常图上，金矿床（点）分布于１）布格重力异常陡变带；２）布格重力异常陡变带的转弯处；３）线性异常带附近；４）布格重力异常低值区，靠近高值一侧等值线由疏变密部位。在磁异常图上则位于：磁异常梯度带、同形扭曲带、磁场截然分界线或线状及串珠状异常带上；磁能高值区。
Geophysical prospecting dataprocessing and its geological explain of Waifangshan gold concentrated zone indicate that the Funiushan complex batholith is derived from mesomagmagene, which intrude the Xionger group strata in the trending of steepsouth and gentlenorth. In the shallow ground the batholith has two stocks: Taishanmiao and Heyu, which are congenetic with shallow vein rock. The gold deposits associated with vein rock distribute in the faults in north of the two stocks. In the lower of zone, geophysical prospecting dataprocessing by downwardcontinuation indicates that there are some hidden rock bodies, which are possible sources of thermodynamics and minerals forming gold deposits. In the gravity anomaly diagrams, the gold deposits locate in; 1) Bouguer anomaly mutation belt; 2) the corner of the Bouguer anomaly mutation belt; 3) nearby the belt of linear anomaly; 4) the low Bouguer anomaly zone where the isolines are from sparse to dense near the high zone. In the magnetic anomaly diagrams, the deposits locate in:the gradient belt of magnetic anomaly diagram, symmorphous twisting belt, sharp boundary of magnetic field and linear or moniliform anomaly belt; the high magnatic energy zone.
出处
《黄金地质》
1998年第2期49-54,共6页
Gold Geology
关键词
金矿床
地质解释
地质意义
地球物理勘探
gold deposit, geophysical prospecting dataprocessing, geological explain and significance, Henan
