-
generated where it is
found or observed. Such
deposits are
described as
authigenic.
Authigenic sedimentary minerals form
during or
after sedimentation by precipitation...
- lead to fossilization,
including permineralization,
casts and molds,
authigenic mineralization,
replacement and recrystallization, adpression, carbonization...
- silicates. More
specifically reverse weathering refers to the
formation of
authigenic clay
minerals from the
reaction of 1)
biogenic silica with
aqueous cations...
-
close up of
prismatic crystals and
spheroidal aggregates of
unidentified authigenic minerals.,
retrieved 2022-05-27 OpenStax; Herrera-Siklody,
Paula (2016-08-03)...
-
shape of
small quartz grains in
foliated metamorphic rock, or
arise from
authigenic growth of
quartz grains parallel to
bedding in
sedimentary rock. Theoretically...
- Quartz, feldspars, rock fragments, mica,
heavy minerals, clay
minerals Authigenic minerals:
Sulfide minerals, aragonite, calcite, protodolomite,[citation...
- minerals,
volcanic ash,
subordinate residue of
siliceous microfossils, and
authigenic minerals such as zeolites,
limonite and
manganese oxides. The bulk of...
- of low
oxygen and high iron levels, iron
substitutes for
magnesium in
authigenic clay
minerals deposited on the
ocean floor,
slowing the
removal rates...
- in the
Carboniferous Sphenophyta (Calamites) and
cordaites (Artisia).
Authigenic mineralisations.
These can
provide very fine, three-dimensional morphological...
-
These secondary (diagenetic)
sedimentary structures exhibit bands of (
authigenic)
minerals that are
arranged in a
regular repeating pattern. Liesegang...
