Diabase (/ ˈ d aɪ. ə ˌ b eɪ s /), also called dolerite (/ ˈ d ɒ l. ə ˌ r aɪ t /) or microgabbro, [1] is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro.

Aug 26, 2023 · Diabase, also known as dolerite, is a type of igneous rock that holds significance in the field of geology due to its unique characteristics and formation process. It is an intrusive …

Dolerite is an intrusive igneous rock that is composed mainly of plagioclase feldspar and pyroxene. It is formed when magma is intruded into other rocks, and then cools and solidifies …

Diabase is an intrusive igneous rock of basaltic composition. It has been used as a construction stone for thousands of years. Its most famous use is in the standing stones of Stonehenge.

In British and Australian usage: A medium grained mafic intrusive rock whose main components are calcic plagioclase and clinopyroxene and which is characterized by ophitic to subophitic …

Sep 4, 2023 · Diabase, dolerite, or microgabbro is a medium-grained, dark-colored, hypabyssal, or subvolcanic rock with a composition similar to plutonic gabbro or volcanic basalt. It …

Diabase, fine- to medium-grained, dark gray to black intrusive igneous rock. It is extremely hard and tough and is commonly quarried for crushed stone, under the name of trap. Although not …

Diabase (dolerite) is a dark-colored igneous rock. It is compositionally equivalent to gabbro and basalt but texturally between them. Diabase is a common rock type. It occurs mostly in shallow …

Diabase or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit …

Apr 11, 2024 · Dolerite, diabase, or formally microgabbro, is a dark-colored, medium-grained subvolcanic rock equivalent to basalt or gabbro in composition. Subvolcanic or hypabyssal …