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Argillic alteration is
hydrothermal alteration[citation needed] of wall rock
which introduces clay
minerals including kaolinite,
smectite and illite. The...
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classification for a
brown earth with an
eluvial horizon above a
slightly argillic,
clayey illuvial horizon. This
gives rise to a
universal division of these...
- in soil
taxonomy with
their major characteristics: Alfisols: Must have
argillic, natric, or
kandic horizon; high-to-medium base saturation; moderately...
- quartz-sericite ****emblage.
Phyllic alteration is
often closely ****ociated with
argillic alteration,
which occurs at
lower temperatures and
dominantly affects plagioclase...
- argillans, and soil
horizons with
sufficient clay
illuviation are
termed argillic horizons.
Cutans provide physical evidence,
observable in the field, as...
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commonly forms below an
albic horizon. It has less clay
content than an
argillic horizon but is
still a
visible layer. In the
pedogenesis process under...
- biotite. This is
common in
porphyry copper and
porphyry molybdenum deposits.
Argillic alteration,
commonly present in the
distal areas of
porphyry deposits,...
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lowland Britain changed around 4250–4000 BC.
During the
Neolithic period,
argillic (clayey)
brownearths reigned in the
landscape formed by the acidifying...
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Diagnostic subsurface horizons Agric horizon Albic horizon Anhydric horizon Argillic horizon Calcic horizon Cambic horizon Duripan layer Fragipan layer Glossic...
- root
traces is the most
likely cause of the
intimate relationship between Argillic horizons, Alfisols, and forests. The
large woody root
traces can transport...
