microgabbro

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noun

A fine-grained igneous rock with the same composition as gabbro but having an ophitic texture; diabase.

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Meanings

nounmicrogabbro (countable and uncountable, plural microgabbros)

plural microgabbros

  1. countableuncountablegeographyA fine-grained igneous rock with the same composition as gabbro but having an ophitic texture; diabase.
    1 more example

    Among these sequences, the Early Cretaceous parts (Urutawan–Motuan) contain spilites and keratophyres within greywacke-type detritus and conglomerates (Battey 1950; Ash 1970; Hay 1975), whilst the Late Cretaceous lithologies are predominantly basalts, dolerites, and microgabbros, with minor amounts of sediment (Le Couteur 1967; Hay 1975).

    1982 November 26, R. N. Brothers, M. Delaloye, “Obducted ophiolites of North Island, New Zealand: origin, age, emplacement and tectonic implications for Tertiary and Quaternary volcanicity”, in New Zealand Journal of Geology and Geophysics, volume 25, number 2, →ISSN, page 258

Origin

From micro- + gabbro.

Full word history & related roots →
Cite this entry
APA

microgabbro. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/microgabbro

MLA

“microgabbro.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/microgabbro. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “microgabbro,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/microgabbro.

Source: microgabbro on Wiktionary, CC BY-SA 4.0.