Definition of Dolerite. Meaning of Dolerite. Synonyms of Dolerite

Here you will find one or more explanations in English for the word Dolerite. Also in the bottom left of the page several parts of wikipedia pages related to the word Dolerite and, of course, Dolerite synonyms and on the right images related to the word Dolerite.

Definition of Dolerite

Dolerite
Dolerite Dol"er*ite, n. [Gr. ? deceptive, because easily confounded with diorite.] (Petrography) (a) A dark, crystalline, igneous rock, chiefly pyroxene with labradorite. (b) Coarse-grained basalt. (c) Diabase. (d) Any dark, igneous rock composed chiefly of silicates of iron and magnesium with some feldspar. -- Dol`er*it"ic, a.
Dolerite
Dolerite Dol"er*ite, n. [Gr. ? deceitful; because it was easily confounded with diorite.] (Geol. & Min.) A dark-colored, basic, igneous rock, composed essentially of pyroxene and a triclinic feldspar with magnetic iron. By many authors it is considered equivalent to a coarse-grained basalt.

Meaning of Dolerite from wikipedia

- Diabase ( /ˈdaɪ.əbeɪs/) or dolerite or microgabbro is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase...
- An intrusive rock, similar to dolerite, but with an excess of quartz. Dolerite is similar in composition to basalt, which is eruptive (from volcanoes)...
- varieties, including: basalt in Victoria, Australia, and in New Zealand dolerites in Tasmania, Australia; and in Britain (including Stonehenge) feldspathic...
- attraction) for its geology, the Giant's Playground, a vast pile of large dolerite rocks. The Quiver Tree Forest holds tremendous ecological value within...
- include diabase (also known as dolerite) and porphyry. Common examples of subvolcanic rocks are diabase, quartz-dolerite, micro-granite and diorite. Cone...
- 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...
- Tasmania is complex, with the world's biggest exposure of diabase, or dolerite. The rock record contains representatives of each period of the Neoproterozoic...
- cooling to form very hard dolerite, a co****r-grained equivalent of basalt. Subsequent glacial erosion was resisted more by the dolerite, which protected the...
- and was surrounded by a double kerb. The first phase favoured the use of dolerite. In a second phase, an extension with six further chambers was added in...
- period about 10,000 years ago. Much of the island is composed of Jur****ic dolerite intrusions (the upwelling of magma) through other rock types, sometimes...
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