-
Quartz is a hard,
crystalline mineral composed of
silica (silicon dioxide). The
atoms are
linked in a
continuous framework of SiO4 silicon–oxygen tetrahedra...
- A
quartz arenite or
quartzarenite is a
sandstone composed of
greater than 90%
detrital quartz.
Quartz arenites are the most
mature sedimentary rocks possible...
- A
ganister (or
sometimes gannister ) is hard, fine-grained
quartzose sandstone, or orthoquartzite, used in the
manufacture of
silica brick typically used...
- epidote-quartz schist, biotite-calcite-quartz schist, and thin
layers of
quartzose marble.
These metamorphic rocks appear to be the
result of the metamorphism...
- (541 to 485 Ma) in
Malaysia is the
Machinchang Formation,
composed of
quartzose clastic rock formations, in Langkawi; the
other known example, the Jerai...
-
difference may be bridged. Such
current may
propagate into silica-rich
quartzose sand,
mixed soil, clay, or
other sediments,
rapidly vaporizing and melting...
-
fangolitas (mud) and
arilitas (sand); the
whitish colouring is due to
quartzose,
sandstone and marls, rich in
calcium carbonate; the red is due to claystones...
-
meters (9,800 ft) of shallow-water,
mostly marine, tan, green, and red
quartzose sandstones (quartzites) and argillites. In
ascending order, the Crashsite...
-
stratum consists of 0.7 to 1.5 km (2,300 to 4,900 ft) of Tri****ic
clayey quartzose turbidites interbedded with
black slate and siltstone. A thin
veneer of...
-
pressure solution and
quartz cementation in moderately-and deeply-buried
quartzose sandstones from the
Greater Green River Basin, Wyoming".
Special Publications...
