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Clastic rocks are
composed of fragments, or clasts, of pre-existing
minerals and rock. A
clast is a
fragment of
geological detritus, chunks, and smaller...
- into four
groups based on the
processes responsible for
their formation:
clastic sedimentary rocks,
biochemical (biogenic)
sedimentary rocks,
chemical sedimentary...
- A
clastic **** is a seam of
sedimentary material that
fills an open
fracture in and cuts
across sedimentary rock
strata or
layering in
other rock types...
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Shale is a fine-grained,
clastic sedimentary rock
formed from mud that is a mix of
flakes of clay
minerals (hydrous
aluminium phyllosilicates, e.g., kaolin...
- In geology, a
clastic wedge is a
thick ac****ulation of
sediments or
sedimentary rocks eroded and
deposited landward of a
mountain chain or geological...
-
diameter of
individual grains of sediment, or the
lithified particles in
clastic rocks. The term may also be
applied to
other granular materials. This is...
-
either cutting across layers of rock or
through a
contiguous m**** of rock.
Clastic ****s are
formed when
sediment fills a pre-existing crack. A
magmatic ****...
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Siltation is
water pollution caused by
particulate terrestrial clastic material, with a
particle size
dominated by silt or clay. It
refers both to the...
- a craton; such m****ive,
convex ac****ulations of
sediment are
known as
clastic wedges.
Geology of the Himalaya –
Origins and
structure of the mountain...
-
Sandstone is a
clastic sedimentary rock
composed mainly of sand-sized (0.0625 to 2 mm)
silicate grains,
cemented together by
another mineral. Sandstones...
