auriferous उदाहरण वाक्य

In 1545, there was a noted sum of about 1, 500 African slaves seeking auriferous sands in Honduras.
Small auriferous quartz veins have been found in the granitic rock, but are too small to pay for mining ."
The Durham Mine worked a rich auriferous reef down to the 122m level between 1879 and 1899 and again from 1907.
In 1874, following goldfield regulations, a business area was marked out in an area believed to be non-auriferous.
The valley of Someul Mare has much auriferous alluvium that, until the early 20th century, were brought to the surface using traditional tools.

He examined and reported on the auriferous ( gold-bearing ) rivers, the turquoise mines, the forests and the fossil beds of France.
The veins are characterized by quartz, sulphide ( auriferous arsenopyrite ) and native gold ( visible gold flakes have historically been observed in several slate belts ).
When the gold had been exhausted, they followed the auriferous seams underground by tunnels using fire-setting to break up the much harder gold-bearing rocks.
In 1872 the Durham area, just west of Georgetown, was developed with more than 44 separate auriferous reefs being worked and crushing machinery set up in Georgetown.
In past years, exploration efforts have been geared to the testing of narrow quartz veins and the possibility of broader auriferous pods enclosed in altered rock has been neglected.