-
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...
- such as sand, silt, or clay,
which fills the
interstices between the
clasts. The
clasts and
matrix are
typically cemented by
calcium carbonate, iron oxide...
-
sedimentary rocks are
composed of rock
fragments (
clasts) that have been
cemented together. The
clasts are
commonly individual grains of quartz, feldspar...
- gastroliths.
Clasts from
beaches and
streams tended to have
reflectance values of less than 35%. Less than ten
percent of
beach clasts have reflectance...
- gravel-size
pieces of
clayey sediment into
shale or
mudstone rip-up
clasts.
Shale rip-up
clasts are
often found at the base of
sandy turbidites, in lag deposits...
- that
elongated clasts in
tills tend to
align with the
direction of ice flow.
Clasts in till may also show
slight imbrication, with the
clasts dipping upstream...
-
imbrication where the long axes of the
clasts are
oriented parallel to the flow direction. This
fabric is
characteristic of
clasts carried in
suspension and this...
-
uplifting Catalan Coastal Ranges to the
southeast of the
basin and the
clast type is
dominated by Tri****ic
sedimentary rocks. The fan had an original...
-
lithic fragments.
Examples include volcanic and
metamorphic clasts,
though stable clasts such as
chert are
common in
lithic arenites. This type of rock...
- ingredient.
Combined with hot mixing, the
quicklime creates macrosized lime
clasts with a
characteristically brittle nano-particle architecture. As cracks...
