(of an igneous rock) having irregular cavities into which crystals protrude
Examples of 'miarolitic' in a sentence
miarolitic
When the interstitial magma between the spheroids crystallized, the volatiles were confined and concentrated, causing pegmatitic growth or miarolitic cavities.
N. Edelman 1983, 'Boulder of orbicular rapakivi in Taivassalo, southwestern Finland', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume55/sgs_bt_055_2_pages_179_184.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The epidote-group minerals occur as single crystals and as aggregates filling in rock interstices and miarolitic cavities.
Silvio R.F. Vlach 2012, 'Micro-structural and compositional variations of hydrothermal epidote-group mineralsfrom a peralkaline granite, Corupá Pluton, Graciosa Province, South Brazil, and theirpetrological implications', Anais da Academia Brasileira de Ciênciashttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000200012. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Miarolitic cavities found in the porphyritic biotite granite and topaz granite indicate at least local volatile saturation.
S. Lukkari 2002, 'Petrography and geochemistry of the topaz-bearing granite stocks in Artjärvi and Sääskjärvi,western margin of the Wiborg rapakivi granite batholith', Bulletin of the Geological Society of Finlandhttp://www.geologinenseura.fi/bulletin/Volume74/Lukkari.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Orbicules, pegmatites, unidirectional solidification textures and miarolitic cavities result from the interaction of the melt with a gaseous phase.
Jean-Louis Vigneresse 2015, 'Textures and melt-crystal-gas interactions in granites', Geoscience Frontiershttp://www.sciencedirect.com/science/article/pii/S1674987114001613. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)