对胶东招—菜地区进一步扩大金矿找矿的几点浅见—从花岗岩成矿的角度

OPINION ON EXPANDING GOLD EXPLORATION IN THE ZHAO YUAN—LAIZHOU AREA IN EASTERN SHANDONG: FROM THE VIEW POINT OF GRANITOID METALLOGENESIS

摘要:

本文论证了胶东招远—莱州(原掖县)地区金矿的形成,既严格受韧—脆性断裂系统的控制,又与郭家岭花岗闪长岩密切相关;矿床类型除原有的石英脉型、破碎带蚀变岩型之外,近年来又发现了细脉浸染型金矿。随着仓上隐伏金矿床的发现和探明,以及招远、台上等老矿区深部找矿工作的新进展,作者从花岗岩成矿的角度,对在该区进一步扩大金矿的找矿问题,提出了以下三点浅见:一、注意新类型金矿的探寻,不断开拓找矿思路;二、运用成矿系列理论,进行系列找矿;三、注意与隐伏岩体相伴生的隐伏金矿床的预测和探寻。

Abstract:

The paper demonstrates that the formation of gold deposits in the ZhaoyuanLaizhou (formerly Yexian Caunty) area in eastern Shandong is strictly controlled by ductile-brittle fault systems and closely related to the Guojialing Granodiorite in origin, and the types of ore deposits there include quartz-vein type and altered-rock (in fractured zone) type found in earlier days,and the veinlet-disseminated type discovered in recent years. With the discovery and exploration of the hidden Cangshang gold deposit and...