关键词: 短链羧酸, 矿物流体包裹体, 离子色谱, 浸取液, 含金石英脉

Abstract: The short-chain carboxylates and inorganic composition of leachates from the fluid inclusions in some quartz vein-type gold deposits in the southeastern Guizhou Province were determined by ion-chromatogrphy. There are some formate, acetate and oxalate in leachates in small amounts, and the content of formate is greater than that of acetate. Homogenization temperatures of fluids inclusions in quartz studied are above 200℃. Monofunctional carboxylates probably are the important components of meso-high temperature ore-forming fluids.

Key words: short-chain carboxylates, fluid-inclusions in minerals, ion-chromatography, leachates, gold-bearing veins