Relationship between gold placer and flow dynamic Guancheng know
砂金矿是含金地质体，经风化剥蚀通过流水的搬运等作用在适当部位富集形成的。因此，水流动态对砂金的富集与分布关系极为密切。同时也是砂金形成的重要条件之一。
Placer gold is gold bearing geological bodies, the weathering and erosion by water transportation etc. in the appropriate part of the formation of enrichment. Therefore, the dynamic of placer gold accumulation and distribution is closely related to the. One of the important condition is also of formation of gold.
根据搬运成矿物质水流的动态大致分为四类：①江、河水；②季节性洪水；③冰川水；④暗河潜水。
According to the dynamic handling into the mineral water can be divided into four types: ① Jiang, the river; the seasonal floods; the glacier water; the river diving.
砂金的搬运方式，根据沈阳矿产所吕英杰等同志的研究有四种：单矿物（金粒）搬运，“运载”式搬运，接力式搬运，金在水溶液中搬运。我国主要江河如黑龙江、黄河、长江、珠江、额尔齐斯河、辽河、滦河等均产砂金。砂金的分布不是普遍的，一级水系长江、黄河、额尔齐斯河等虽有砂金分布，但品位低，深度大，颗粒一般较细。目前尚难利用。二级水系砂金矿化比较普遍，如湘江、沅江、昌江、汉水、洛河等的沙洲、沙坝、边滩大都分布有砂金矿点。但品位低、规模小。3～4级支流河谷是砂金主要赋存部位，也是工业开发的主要对象。5级以上的支沟细谷规模小、品位较富，是民采的主要对象。
Handling of placer gold in Shenyang, according to the study of mineral that Comrade Lv Yingjie has four kinds: single mineral (Jin Li) handling, "carrier" type handling, relay handling, gold in aqueous solution handling. Major rivers in China such as Heilongjiang, the Yellow River, the Yangtze River, Pearl River, Irtysh River, Liaohe River, Luanhe River are made of placer gold. The distribution is not universal, a Yangtze River, the Yellow River River, Irtysh River are the distribution of placer gold, low grade, depth, are generally more fine particles. It is difficult to use. Two river sand gold mineralization is relatively common, such as Xiangjiang, Yuanjiang, Changjiang River, Hanshui, such as sand, sand bar, beach placer gold deposits are distributed. But the quality is low, small scale. 3 ~ 4 tributary Valley is the gold mainly occurs, is also the main object of industrial development. Ditch fine valley scale more than 5 small, grade is high, is the main object of the people.
由于水流动态所致，我国西部砂金主要以冲洪积、冰碛型为主，东部地区以冲积型为主。内蒙古高平原区以洪积型为主。
Because the flow dynamics caused by, our country western placer gold mainly alluvial, moraine based, the eastern region dominated by alluvial type. Inner Mongolia High Plains region to diluvial type.
