These deposits also may contain important minerals that help in today's economy.

There are many mineral deposits containing 63 elements of the periodic table.

The deposits contain more than 130 million metric tons of coal.

Large deposits of this type can contain more than 1,000 individual mineralized veins.

In 1934 it was estimated that the deposits contained over five million tons of nickel.

Some marine deposits contain a high proportion of fecal remains.

The term "resources", on the other hand, may refer to all deposits containing kerogen.

Often a deposit will contain a mixture of all three types of ore.

The earliest and lowest deposits in the cave contain large amounts of sea sand.

These deposits also contain various other mineral trace elements.