2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ib porphyritic kev ntxhib los mos yog tsim thaum magma uas tau maj mam txias thiab crystallising nyob rau hauv lub ntiaj teb lub crust yog dheev erupted ntawm nto, ua rau cov seem uncrystallised magma kom txias sai heev. Qhov kev ntxhib los mos yog cov yam ntxwv ntawm feem ntau cov pob zeb volcanic. … Qhov kev ntxhib los mos no nthuav tawm los ntawm qee cov pob zeb volcanic.
Puas yog pob zeb porphyritic intrusive?
pob zeb Porphyritic tej zaum yuav yog pob zeb aphanites lossis pob zeb extrusive, nrog cov pob zeb loj lossis phenocrysts ntab hauv cov pob zeb zoo ntawm cov pob zeb uas tsis pom, xws li hauv cov pob zeb porphyritic, lossis phanerites lossis cov pob zeb intrusive, nrog cov pob zeb ntawm cov av. yooj yim txawv nrog lub qhov muag, tab sis ib pab pawg neeg muaju …
pob zeb dab tsi yog porphyritic?
Porphyritic kev ntxhib los mos yogigneous pob zeb kev ntxhib los mosnyob rau hauv uas cov muaju loj yog teem rau hauv cov hmoov nplej zoo los yog iav hauv av. Porphyritic textures tshwm sim nyob rau hauv ntxhib, nruab nrab thiab nplua-grained igneous pob zeb. Feem ntau cov crystals loj dua, hu ua phenocrysts, tsim ua ntej hauv crystallisation ib ntus ntawm magma.
porphyritic qauv yog dab tsi?
In feldspar: Crystal qauv. (Ib qho porphyry yog ib pob zeb tsis muaj pob zeb uas muaj cov pob zeb pom tseeb, hu ua phenocrysts, nyob ib puag ncig los ntawm cov matrix ntawm finer-grained minerals los yog iav los yog ob qho tib si.) Hauv cov pob zeb feem ntau, ob qho tib si alkali thiab plagioclase feldspars tshwm sim raws li irregularly zoo li cov nplej nrog ob peb los yog tsis muaj crystal ntsej muag.
Qhov twgporphyritic pob zeb pom?
Thaum cov av loj yog tsim los ntawm cov muaju me me ntawm feldspar thiab quartz, lub pob zeb hu ua granite-porphyry. Ob leeg yog cov muaj pes tsawg leeg ntawm granite, thiab ob qho tib si muaj nyob rau hauv elvan dikes ntawm tin koog tsev kawm ntawv hauv Cornwall. Quartz- porphyry muaj nyob rau hauv Porcupine kub camp, Ontario.
Pom zoo:
Thaum twg porphyritic pob zeb tsim?
Ib porphyritic kev ntxhib los mos yog tsim thaum magma uas tau maj mam txias thiab crystallising nyob rau hauv lub ntiaj teb lub crust yog dheev erupted ntawm qhov chaw, ua rau cov seem uncrystallised magma kom txias sai heev. Qhov kev ntxhib los mos yog yam ntxwv ntawm feem ntau pob zeb volcanic.
Nyob rau hauv cov pob zeb feldspar pob zeb hauv qhov twg?
Feldspars crystallize los ntawm magma raws li ob qho tib si intrusive thiab extrusive igneous pob zeb thiab tseem muaj nyob rau hauv ntau hom metamorphic pob zeb. Pob zeb tsim yuav luag tag nrho ntawm calcic calcic Raws li ib qho alkaline ntiaj teb hlau, calcium yog cov hlau reactive uas tsim cov txheej tsaus nti oxide-nitride thaum raug huab cua.
Yuav ua kom cov pob zeb tshiab ua raws li cov pob zeb qub?
Cov cement hauv cov pob zeb sib xyaw tsis muaj cov khoom sib txuas ua ke - yog li thaum cov pob zeb tshiab ntxiv rau saum cov pob zeb uas twb muaj lawm, ob leeg yuav tsis koom ua ke. … Tus tshiab yuav tsis ua raws li qhov qub yam tsis muaj kev pab ntawm daim nplaum nplaum.
Puas yog pob zeb porphyritic cuam tshuam?
pob zeb Porphyritic tej zaum yuav yog pob zeb aphanites lossis pob zeb extrusive, nrog cov pob zeb loj lossis cov phenocrysts ntab hauv cov av nplua nuj hauv av Cov matrix lossis cov pob zeb hauv av yog cov khoom zoo tshaj plaws ntawm cov khoom uas loj dua.
Yuav ua li cas pob zeb ntxhib ntxhib ntxhib pob zeb?
Diorite Diorite Diorite, ua cov khoom sib xyaw, nws txawv ntawm nws cov khoom, tab sis feem ntau nws nyuaj (nws cov ntxhia tseem ceeb muaj qhov tawv ntawm ib ncig ntawm 6 ntawm Mohs nplai). https://en.wikipedia.org › wiki › Diorite Diorite - Wikipedia yog cov pob zeb ntxhib ntxhib, nkag mus rau hauv cov pob zeb uas muaj cov sib xyaw ntawm feldspar, pyroxene, hornblende, thiab qee zaum quartz.
