河南省富碱侵入岩与金矿床关系浅析

河南省华北陆块南缘富碱侵入岩与金矿床成矿关系主要表现在空间、热动力和衍生关系三方面，与碱性岩有关的金矿床主要分为三种类型：热液－淋滤富集型、含金剪切带型和熔结（爆发）角砾岩型。富碱岩石含金背景值总体较高，近矿围岩含金丰度低于远矿围岩，富碱侵入体中的部分金组分参与了成金作用。区域侵入体含金性，其一：沿着栾川—方城深大断裂带分布的富碱浅成侵入体的成矿作用主要表现为区域构造活动引发淋滤富集作用和含金剪切构造带成金作用；其二：位于成金基底源区出露的一些富碱侵入体的成矿作用主要表现为爆发角砾岩和热液蚀变。

A PRELIMINARY STUDY ON THE GOLD DEPOSITS RELATED TO ALKALINE-RICH INTRUSIVE ROCKS IN HENAN PROVINCE

The rebtionships between alkali-rich intrusive rocks and gold minerlization at the southernmargin of North China Plate in Henan Province mainly show in three aspects:space,thero-dy-namics and derivative relation. The gold deposits related to alkaline rock can be divided into threemain types:hydrothermal-leached enrichment, gold-bearing shear zone and welded(explosion)breccia,The background value of gold-bearing abundance in the alkaline-rich intrusive body tookpart in the gold mineralization;The gold-bearing characters of the regional intrusive body as fol-lows :in the first place,the mineralizing process of the alkaline-rich hypabyssal intrusive bodydistributed along Luanchuan Fangcheng deep fracture zone mainly display the leached enrich-ment process and the gold-forming of gold-bearing shear structural zone led by regional struc-tural activities. In the second place,the mineralizing process of some alkaline-rich intrusive bodylocated in the gold-bearing basal sourceland mainly display the explosion-breccia and the hy-drothermal alteration.