单词	trachytic
释义	trachytic /trəˈkɪtɪk / adjective Geology Relating to or denoting a rock texture (characteristic of trachyte) in which crystals show parallel alignment due to liquid flow.Influx of trachytic volcanic rock fragments in the Albian may derive from inlra-platc volcanism related to extension.... The field relationships and geochemistry is described in detail by Fumes & Lippard, who differentiated a lower body of brecciated flow-banded and ‘flow-folded’ trachytic lava, interlayered with microgabbro. They consist of intrusive materials (phonolitic domes, trachytic dykes, small syenitic bodies), breccias, tuffs and massive peripheral lava flows.
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