placer deposit वाक्य

उदाहरण वाक्य

1. Placer deposits are formed by alluvial processes within rivers, streams and on beaches.
2. Good placer deposits were found along Greenhorn Gulch and Boulder Gulch.
3. The rich placer deposits of the Columbia Basin-Sonora district were found in 1853.
4. They mine hard rock deposits and placer deposits left by glaciers.
5. Deeper placer deposits may be sampled by trenching or drilling.
6. Rarely, but importantly, gold, tin and platinum deposits can form in beach placer deposits.
7. Opals which have weathered out of the in-place deposits are alluvial and considered placer deposits.
8. But the placer deposits worked in the early years were quickly exhausted, and production crashed.
9. The river sand garnet occurs as a placer deposit.
10. Sedimentary placer deposits are known as'leads'or'deep leads '.