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Geological Terms Beginning With "K"



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Karst

Karst

A landscape that is characterized by the features of solution weathering and erosion in the subsurface. These features include caves, sinkholes, disappearing streams and subsurface drainage.

Kerogen

Kerogen

Solid organic substances frequently found in shales that can yield gases and liquids through heating. The organic component of an oil shale. The photo is a microscopic view of an organic black shale in reflected light the brown resinous material is kerogen.

Kettle

Kettle

A depression formed in glacial deposits when a buried block of ice, left behind by a retreating glacier, melts.

Kettle Lake

Kettle Lake

A lake that forms in a kettle.

K-feldspar

K-feldspar

A potassium feldspar such as orthoclase, microcline, sanidine or adularia. Also referred to as potash feldspar.

Kilobar

Kilobar

A unit of pressure equal to 1000 bars (the mean atmospheric pressure at 100 meters above sea level is one bar).

Kimberlite

Kimberlite

A variety of peridotite that is found in volcanic pipes which are thought to be intrusions from the upper mantle. Many diamond deposits are found in kimberlite pipes.

Dictionary of Geological Terms   Dictionary of Geological Terms

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Knickpoint

Knickpoint

An abrupt change in slope. A point on a stream profile where a change in gradient occurs. This could be caused by a change in underlying bedrock or bedrock structure.

Knob

Knob

A small hilltop that is round in shape.

Kyanite

Kyanite

A metamorphic mineral that occurs in beautiful hues of blue and green. It has perfect cleavage and has a hardness of 4.5 in one direction, 5.5 in another, making it best used in items that will not be subjected to wear.

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