Gold occurrence mechanism of fine disseminated gold deposits

摘要

The fine disseminated gold deposits are widely distributed in the southwestern China and western United States. They have a mineral association of pyrite, arsenopyrite, marcasite, realgar, orpiment, stibnite, cinnabar, quartz, calcite and barite, and an element association of gold, arsenic, antimony, mercury, thallium and barium. Gold occurs as disseminated and in small size. This note aims to discuss the disseminated nature and micron size of the gold.