第四纪河谷金刚石砂矿具有品位高、质量好、埋藏浅和易采易选等优点,因此,研究其分布与富集规律,对有效地进行砂矿普查与勘探是极为重要的。众所周知,控制砂矿成矿因素诸多,但笔者认为,在有丰富的矿源体(系指金刚石原生矿、古砂矿)补给金刚石的条件下,能否形成河谷砂矿,主要取决于新构造运动所制约的河谷纵剖面形态及其比降的大小,以及所支配的堆积 Quaternary river valley diamond sands have the advantages of high grade, good quality, shallow burial and easy mining and easy selection. Therefore, studying their distribution and enrichment laws is extremely important for the effective sand prospecting and exploration. As we all know, there are many factors that control the mineralization of sand, but in my opinion, the formation of river sand ores depends on the new tectonism under the condition of abundant diamond source (diamond primary ore and ancient sand) The shape of the vertical section of the valley controlled by it, the size of its slope, and the dominating accumulation