- chlorite, and calcite. The
texture is
termed diabasic and is
typical of
diabases. This
diabasic texture is also
termed interstitial. The
feldspar is high...
- The York
Haven Diabase is a rock
formation in Pennsylvania,
United States. It
underlies the
Rossville Diabase and is Jur****ic in age. The
formation is...
- The
Diabase Hills are a
mountain range in
Washoe County, Nevada. "
Diabase Hills".
Geographic Names Information System.
United States Geological Survey...
-
Subvolcanic rocks include diabase (also
known as dolerite) and porphyry.
Common examples of
subvolcanic rocks are
diabase,
quartz dolerite, microgranite...
- pyroxene, amphibole, and biotite.
Common mafic rocks include basalt,
diabase and gabbro.
Mafic rocks often also
contain calcium-rich
varieties of plagioclase...
-
alteration of
augite (biotite or hornblende) to chlorite, and is seen in many
diabases,
diorites and greenstones.
Epidotization occurs also in
rocks of this group...
- University.
Wherry theorized that the
ringing was due to the
texture of the
diabase rocks and that they were
supported by
other rocks. He
identified the boulder...
- of this
igneous rock.
There is very
little co****r-grained
gabbro and
diabase.
Nephelinite is
exposed on the
islands but is
extremely rare. The majority...
-
granites and
rhyolites (the red rocks),
gabbroic rocks, anorthosites, and
diabases (the
black rocks).
Subsidence resulted in
burial by
sandstones and carbonates...
-
properly referred to as
diabase (also
called dolerite) or, when more co****-grained (crystals over 2 mm across), as gabbro.
Diabase and
gabbro are thus the...
