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Hasil cari dari kata atau frase: Trap tufa(0.01372 detik)
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English → English (gcide)
Definition: Trap tufa
Trap \Trap\, n. [Sw. trapp; akin to trappa stairs, Dan. trappe,
G. treppe, D. trap; -- so called because the rocks of this
class often occur in large, tabular masses, rising above one
another, like steps. See Tramp.] (Geol.)
An old term rather loosely used to designate various
dark-colored, heavy igneous rocks, including especially the
feldspathic-augitic rocks, basalt, dolerite, amygdaloid,
etc., but including also some kinds of diorite. Called also
Trap tufa, Trap tuff, a kind of fragmental rock made up
of fragments and earthy materials from trap rocks.