... Statistical Placer 统计方法布局 ; 统计布局方式 stream placer 河床砂矿 placer platinum 砂铂 ...
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Thus, an intermediate store body of formation gold placer was formed. Being raised earth crust intermittently, havigng affected of sanking stream, gold placer and gravel were retained…
当地壳多次间歇性上升后，使砂金中间储存体中分散的砂金集中富集在河床滞留砾石层中，从而形成砂金矿床。
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