黑龙江北部砂金矿的物质来源及金的富集作用

The origin and enrichment of gold in gulch-gold mines located in northern region of Heilongjiang Province

黑龙江北部砂金矿的金主要来源于经过壳幔作用使金再次富集的含金建造和岩金矿。上地幔隆起区是控制砂金矿和岩金矿面式分布的主要因素。在第三纪 ,夷平面上的风化壳中的金经历了重要的次生富集作用 ;在第四纪 ,在冰川和径流作用下最终形成了砂金矿床。

The gold in gulch-gold mines locating in northern region of Heilongjiang Province mainly originates from the gold-containing structure and lode gold mines enriched by crust-mantle action. The upheaval zone in upper mantle is the primary factor controlling the distribution of gulch-gold mines and lode gold mines. During Tertiary period, the secondary enrichment happened to the gold in weathering crust of planation surface. During Quaternary period, the gulch-gold mines are eventually formed with the action of glacier and runoff.