Feldspathic arenite: Ib qho nruab nrab rau coarse grained arenite nrog >25% feldspar tseem hu ua arkose. Cov sandstones no tsim los ntawm disentigration sai ntawm granite los ua grus, uas yog ceev ceev deposits, feem ntau nyob rau hauv alluvial kiv cua deposits.
feldspathic sandstone yog dab tsi?
Feldspathic arenites yog sandstones uas muaj tsawg dua 90% quartz, thiab ntau feldspar dua lithic tsis ruaj khov, thiab cov khoom siv me me. … Feldspathic sandstones yog muab los ntawm Granitic-hom, thawj crystalline, pob zeb. Yog hais tias lub sandstone yog feem ntau plagioclase, ces nws yog igneous nyob rau hauv keeb kwm.
pob zeb dab tsi yog quartz Arenite?
Quartz arenite, ntau yam ntawm pob zeb quartzite (q.v.) formed los ntawm deposition ntawm silica nyob rau hauv subterranean sandstone. Kab lus no tau hloov kho tshiab thiab hloov tshiab los ntawm John P.
Dab tsi yog pob zeb sedimentary?
Arenite, ib pob zeb sedimentary uas muaj cov xuab zeb me me (0.06–2 millimeters [0.0024–0.08 nti] inch), tsis hais txog qhov muaj pes tsawg leeg. Ntau qhov kev cai nomenclature ntawm cov pob zeb no yog nyob ntawm qhov muaj pes tsawg leeg, qhov loj me, thiab hom ntawm keeb kwm-xws li, sandstone, quartzite, lithic arenite, thiab feldspathic arenite.
Yuav ua li cas thiaj zoo?
Arkose (xws li subarkose) lossis feldspathic arenite feem ntau muaj feem ntau ntawm feldspar thiab quartz, nrog qee cov pob zeb tawg thiab detrital micas. … Arkoses yogfeem ntau tsis zoo rau nruab nrab txheeb thiab muaj ntau subrounded rau cov nplej siab heev.
