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 Whin Sill or Great Whin Sill is a tabular layer of the igneous rock dolerite in County Durham, Northumberland and Cumbria in the northeast of England...

varieties, including: basalt in Victoria, Australia, and in New Zealand dolerites in Tasmania, Australia; and in Britain (including Stonehenge) feldspathic...

include diabase (also known as dolerite) and porphyry. Common examples of subvolcanic rocks are diabase, quartz dolerite, microgranite, and diorite. Cone...

The Prospect dolerite intrusion, or Prospect intrusion, is a Jurassic picrite or dolerite laccolith that is situated in Sydney, New South Wales, Australia...

cooling to form very hard dolerite, a coarser-grained equivalent of basalt. Subsequent glacial erosion was resisted more by the dolerite, which protected the...

spectacular for its unique geology, the Giant's Playground, a vast pile of large dolerite rocks. The Quiver Tree Forest holds tremendous ecological value within...

building was designed by Ferdinand Meldahl and built using hewn Icelandic dolerite from 1880 to 1881. The reliefs on the tympanums of the four outermost windows...

period about 11,700 years ago. Much of the island is composed of Jurassic dolerite intrusions (the upwelling of magma) through other rock types, sometimes...