kaolinite
170
K
kaolinite a group of clay minerals consisting of a 1 : 1 layer (~clay minerals) structure with the general formula: AI 2 Si 2 0s(OH)4. Kaolinite contains exchangeable cations, and is derived from alteration of alkali feldspars under acidic
conditions.
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Kaolinite. (After Beutelspacher and van der Mare11968)
Kastengreifer ~box corer.
katadromous ~catadromous.
kelp ~Phaeophyta.
Kelvin-Helmholtz billows a wave-like pattern that develops on a shear layer because
of shear instability, and that is effective in vertical mixing of stratified water.
Kelvin wave long wave in which for each moment the Coriolis force is compensated
by the instantaneous pressure gradient perpendicular to the direction of
propagation, described by the British physicist W. Thomson (Lord Kelvin,
1824-1904) in 1879. It gives a wave with an amplitude that increases perpendicular to the direction of oscillation of the water particles. The increase
is to the right in the northern, and to the left in the southern hemisphere. A
Kelvin wave should then be bounded by a coastline to the right, or the left,
respectively. Along the equator Kelvin waves may also occur, but then
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