Definitions for diabaseˈdaɪ əˌbeɪs

This page provides all possible meanings and translations of the word diabase

Random House Webster's College Dictionary

di•a•baseˈdaɪ əˌbeɪs(n.)

  1. a fine-grained gabbro occurring as minor intrusions.

    Category: Petrology

Origin of diabase:

1830–40; < F, =dia- (error for di- two) +basebase1

di`a•ba′sic(adj.)

Wiktionary

  1. diabase(Noun)

    A fine-grained igneous rock composed mostly of pyroxene and feldspar

Webster Dictionary

  1. Diabase(noun)

    a basic, dark-colored, holocrystalline, igneous rock, consisting essentially of a triclinic feldspar and pyroxene with magnetic iron; -- often limited to rocks pretertiary in age. It includes part of what was early called greenstone

Freebase

  1. Diabase

    Diabase or dolerite is a mafic, holocrystalline, subvolcanic rock equivalent to volcanic basalt or plutonic gabbro. In North American usage, the term diabase refers to the fresh rock, whilst elsewhere the term dolerite is used for the fresh rock and diabase refers to altered material. Diabase dikes and sills are typically shallow intrusive bodies and often exhibit fine grained to aphanitic chilled margins which may contain tachylite.

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