Plagioclase, quartz, lossis feldspathoid. Trachyte (/ˈtreɪˌkaɪt, ˈtrækˌaɪt/) yog an extrusive igneous pob zeb uas muaj feem ntau ntawm alkali feldspar Nws feem ntau yog xim xim thiab aphanitic (fine-grained), nrog me me ntawm mafic minerals, thiab yog tsim los ntawm kev txias sai ntawm lava enriched nrog silica thiab alkali hlau.
Puas trachyte muaj quartz?
Trachyte yog pob zeb extrusive, teej tug mus rau alkali series ntawm nruab nrab volcanic pob zeb. Cov ntxhia tseem ceeb ntawm trachyte yog alkali feldspar (xws li orthoclase), thiab nws feem ntau tsis muaj quartz.
trachyte yog dab tsi?
Trachyte, lub teeb-xim, zoo-grained extrusive igneous pob zeb uas yog tsim los ntawm alkali feldspar nrog me me ntawm cov xim tsaus nti xws li biotite, amphibole, los yog pyroxene. Compositionally, trachyte yog volcanic sib npaug ntawm plutonic (intrusive) pob zeb syenite.
Dab tsi yog trachyte ntsaws?
Lub roob nws tus kheej yog 221m siab trachyte plug- ib qho seem ntawm lub roob hluav taws uas ploj mus ntev Nws tau tsim dua 70 lab xyoo dhau los thaum bas altic lava solidified nyob rau hauv lub roob hluav taws. Sij hawm dhau mus, kev yaig tau ploj mus ntawm lub roob hluav taws sab saud, tawm hauv qab cov trachyte resistant raws li lub ncov rugged.
pob zeb hom twg yog Peralkaline trachyte?
Ib pawg ntawm Feldspar Group, pluag calcium, thiab feem ntau nplua nuj nyob rau hauv potassium. Lub sij hawm petrological rau Albite-Anorthite Series.
