keratophyre

(ˈkɛrətəʊˌfaɪə)

a fine-grained soda trachyte

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

References in periodicals archive

Felsic intrusive rocks in the form of keratophyres are also reported in the extreme southwestern end of the Kingston belt in Maine by Gates (1961).

Mafic intrusions on Campobello Island: implications for New Brunswick--Maine correlations

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