terms:breccia
(1) Fragmental rock whose components are angular and therefore, as distinguished from conglomerates, are not waterworn.
(2) Rock made up of highly angular coarse fragments that may be sedimentary or formed by the action of crushing or grinding along faults.
(3) Volcanic breccia is a more-or-less indurated pyroclastic rock consisting chiefly of accessory and accidental angular ejecta 32 mm or more in diameter lying in a fine tuff matrix.
terms/breccia.txt · Last modified: 2023/11/22 08:39 by 127.0.0.1