Mineral mining

Mineral mining

The extraction of valuable minerals or other geological materials from the earth for economic interests.

Industry: Mining

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Mineral mining

rhythmic sedimentation

Mining; General mining

A regular interbanding of two or more types of sediment or sedimentary rocks due to a regular change in the conditions of sedimentation, such as alternation of wet and dry periods.

chip sample

Mining; General mining

A regular series of ore chips or rock chips taken either in a continuous line across an exposure or at uniformly spaced intervals.

refuse rotor

Mining; General mining

A reject gate in the form of a rotary (or star) valve.

soil catena

Mining; General mining

A related sequence of soil profile types created by changes from one drainage condition to another. These changes are usually transitional.

A relationship between liquid and crystals during crystallization, esp. during fractionation, whereby crystals and liquid change composition in response to changing temperature and pressure. Compare: ...

thin-bedded

Mining; General mining

A relative term applied to sedimentary beds variously defined as less than 1 ft (30 cm) to less than 0.4 in (1 cm) in thickness; specif. said of a bed whose thickness is in the range of 2 to 24 in (5 ...