阿尔泰山冲积型砂金矿的砂金富集规律

THE MINERALIZATION LAWS OF THE ALLUVIAL GOLD PLACERS AT ALTAI MOUNTAIN

冲积砂金矿是阿尔泰山最重要、最有价值的砂金矿,具有矿体稳定、规模较大、品位较高、易于开采等特点.本文通过对阿尔泰山大量冲积型砂金矿的研究和分析,探讨阿尔泰山冲积砂金矿的砂金富集规律.

Alluvial gold placers are the most important and worthful gold placers at Altai Moun-tain. Large scale, high grade, ease to mining are the characters of the alluvial gold placers.After researched a large numbers of the alluvial gold placers at Altai Mountain, this paperdiscusses its mineralization laws of the Altai Mountain, they are related to: 1. theplacer-golds enrichment and their sources, 2. placer-gold containing layer belonging to thespecial layer, 3. the sediment of the placer-gold and the rocks of the river bed, 4. the sedi-ment of the placer-golds and the shape of the river valley, 5. the result of a gold-containingbranch river joins the main river, 6. the stablity of the river-bed being benefit to themineralization, 7.the longer time to form, the bigger of the placer-gold-grain, 8. the key toform the high-grade, large scale placer being pile up the all advantageous factors above.