- Wiktionary, the free dictionary.
Diabase (/ˈdaɪ.əˌbeɪs/), also
called dolerite (/ˈdɒl.əˌraɪt/) or microgabbro, is a mafic, holocrystalline, subvolcanic...
-
Quartz dolerite or
quartz diabase is an
intrusive rock
similar to
dolerite (also
called diabase), but with an
excess of quartz.
Dolerite is
similar in...
- The
Prospect dolerite intrusion, or
Prospect intrusion, is a Jur****ic
picrite or
dolerite laccolith that is
situated in Sydney, New
South Wales, Australia...
- is
composed of an
upper sill of
dolerite and sandstone, with the
harder dolerite forming cliffs and ridges. The
dolerite sill and the
sediments underlying...
- The Whin Sill or
Great Whin Sill is a
tabular layer of the
igneous rock
dolerite in
County Durham,
Northumberland and ****bria in the
northeast of England...
-
Description for both
classification are presented.
Diabase (also
called dolerite) is a fine-grained,
intrusive igneous rock that is dark gray to
black in...
-
include diabase (also
known as
dolerite) and porphyry.
Common examples of
subvolcanic rocks are diabase,
quartz dolerite, microgranite, and diorite. Cone...
- varieties, including:
basalt in Victoria, Australia, and in New
Zealand dolerites in Tasmania, Australia; and in
Britain (including Stonehenge) feldspathic...
- the
summit of
Prospect Hill. The
quarrying of blue metal,
basalt and
dolerite was
abundant in the area in the past two centuries. Pemulwuy, formerly...
-
period about 11,700
years ago. Much of the
island is
composed of Jur****ic
dolerite intrusions (the
upwelling of magma)
through other rock types, sometimes...
