In the geologic setting shown in the picture,the dense minerals of the ore are concentrated in stream sediments after eroding,while less dense minerals are washed away.This is known as a
A) massive sulfide deposit.
B) residual mineral deposit.
C) sedimentary deposit.
D) placer.

Question

In the geologic setting shown in the picture,the dense minerals of the ore are concentrated in stream sediments after eroding,while less dense minerals are washed away.This is known as a 
A) massive sulfide deposit. 
B) residual mineral deposit. 
C) sedimentary deposit. 
D) placer.

Quizplus · Accepted Answer

The process described in the picture is the concentration of dense minerals in stream sediments after erosion, a process known as a placer deposit.

In the Geologic Setting Shown in the Picture,the Dense Minerals