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Lamprophyre - Mining Fundamentals

Lamprophyre is a group of ultrapotassic igneous rocks which consist of phenocrysts of mica, particularly biotite or phlogopite and amphibole such as pargasite or hornblende.

23 Apr 2014

Jaw Crusher - Mining Fundamentals

A jaw crusher is one of the primary machines that are used in the mining industry. In a jaw crusher, rocks are broken by the action of steel plates.

23 Apr 2014

Magma - Mining Fundamentals

Magma is a hot mixture of molten or semi-molten rock and volatiles that is found below the Earth’s surface. It is also composed of gas bubbles, dissolved gas and suspended crystals. It is a complex, high-temperature fluid substance with temperatures ranging between 700 and 1300°C.

23 Apr 2014

Logging - Mining Fundamentals

Logging is the process of making a record of geological observations of the drill core on the computer storage or on paper.There are different types of logging tools and instruments available for logging mining data.

23 Apr 2014

Magnetic Susceptibility - Mining Fundamentals

Magnetic susceptibility is a measure of the ability of a substance to be magnetized in the presence of an external magnetic field.

23 Apr 2014

Magmatic Segregation - Mining Fundamentals

Magmatic segregation is an ore forming process in which the valuable minerals are concentrated by settling them out from cooling magma. Through the magmatic segregation process, one or more minerals are concentrated locally during the cooling of magma.

23 Apr 2014

Open-Pit Mining - Mining Fundamentals

Open-pit mining is a surface-mining operation in which rocks or minerals are extracted from the Earth by creating an open hole or pit in the Earth’s surface.

23 Apr 2014

Pegmatite - Mining Fundamentals

Pegmatite is a common intrusive igneous rock bearing a crystalline structure that is made up of interlocking crystals of size larger than 2.5 cm. Pegmatite rocks are characterized by their exceptionally large and varying grain size.

23 Apr 2014

Electrolytic Refining - Mining Fundamentals

Electrolysis or electrolytic refining is a technique used for extraction as well as purification of metals obtained by any refining method. In the electro- refining process, a block of impure metal is made the anode and a thin sheet of metal is made the cathode.

23 Apr 2014

Plunge - Mining Fundamentals

In the field of structural geology, the orientations of real or imaginary lines, surfaces and planes are represented in three dimensional geometry. Trend and plunge are the two measurements that are used to describe linear features in geology.

21 Apr 2014