一、生產的一般条件海浜砂矿在巨大水盆地——海、湖的沿岸地帶藉金屬碎屑物变化和沉积的方法以及拍岸浪和海浜流的活动而产生。在这种情况下金屬矿的来源是: 1.河流的析出物流入水盆地; 2.拍岸浪冲蝕位于沿岸的原生矿床; 3.位于相似条件下的冲积矿床。被河流帶来的金屬物总是不能利用来形成海浜砂矿,在巨大三角洲內它完全停留在三角洲的表面,而不能到达水盆地,在比較小的三角洲內部分的金屬能到 First, the general conditions of production Haibang sand mine in the huge water basin - the sea, the lake coastal metal detritus changes and sedimentation methods and the shore wave and sea bangs activities. The sources of metalloids in this case are: 1. The river sediment flows into the basin; 2. The shoreline erodes the primary deposit located along the coast; 3. The alluvial deposit located under similar conditions. Metals that are brought by the river are always unavailable to form the seaside sand mines. In the vast delta, they completely rest on the surface of the delta, but can not reach the water basin, and the metal in some of the smaller delta can reach