Certain minerals may occur as alluvial deposits in the sands of valley floors and the base of hills and these deposits are called ____

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

Certain minerals may occur as alluvial deposits in the sands of valley floors and the base of hills, and these deposits are called Placer deposits. An accumulation of valuable minerals called a placer deposit is created by gravity separation from a particular parent rock during sedimentary processes. Placer materials must be thick as well as resistant to weathering processes. Mineral particles must have a specific gravity greater than 2.58 to accumulate in placers. Minerals found in placer deposits typically aren't eroded by water. The most significant minerals in placer deposits are gold, silver, tin, and platinum.

Watch 3-min video & get full concept clarity