Qhov txawv ntawm pyroxene thiab pyroxenoid yog dab tsi?

Cov txheej txheem:

Qhov txawv ntawm pyroxene thiab pyroxenoid yog dab tsi?
Qhov txawv ntawm pyroxene thiab pyroxenoid yog dab tsi?
Anonim

In context|mineralogy|lang=en cov ntsiab lus qhov txawv ntawm pyroxene thiab pyroxenoid. yog tias pyroxene yog (mineralogy) ib pawg ntawm cov khoom siv crystalline uas muaj silicates ntawm hlau, magnesium thiab calcium thaum pyroxenoid yog (mineralogy) ib qho ntawm cov zaub mov loj ntawm lub cev zoo li pyroxene.

Vim li cas wollastonite yog Pyroxenoid es tsis yog pyroxene?

Los ntawm cov txheej txheem ntawm qhov kev sib tham no, amphiboles zoo li pyroxenes ntau dua li pyroxenoids vim lawv O-chains tuaj yeem taw qhia mus rau qhov sib npaug rau pyroxene O-chains hauv brucite-type txheej, lawv muaj cov pyroxene T-chain rov ua dua chav tsev ntev ntawm 2, thiab lawv muaj T: O piv ntawm 1: 1 ntawm T-chains thiab lawv cov cuam tshuam …

Pyroxene feem ntau hu ua dab tsi?

Pyroxenes (feem ntau sau rau Px) yog ib pab pawg ntawm cov pob zeb tseem ceeb hauv cov pob zeb tsim inosilicate muaj nyob hauv ntau cov pob zeb uas tsis muaj zog thiab metamorphic.

Qhov txawv ntawm olivine thiab pyroxene yog dab tsi?

Nyob hauv pyroxene, ib qho divalent cation (2+) ib tetrahedron sib npaug uas -2 nqi. Hauv olivine, nws siv ob qhov sib txawv cations los sib npaug ntawm -4 nqi ntawm ib qho tetrahedron cais. Cov qauv ntawm pyroxene yog "tso cai" ntau dua li ntawm olivine - lub ntsiab lus tias cations nrog ntau yam ntawm ionic radii tuaj yeem haum rau hauv nws.

Olivine thiab pyroxene yog dab tsi?

Olivine thiab pyroxene yog ob chav kawm tseem ceeb ntawm cov pob zeb tsim cov pob zebuas muaj cov hlua nqus hauv qhov pom / NIR uas tshwm sim los ntawm cov khoom siv hluav taws xob siv hluav taws xob hloov pauv ntawm Fe hauv kev sib koom ua ke octahedral (14). Cov kev nqus no yog kuaj xyuas cov zaub mov thiab lawv cov tshuaj muaj pes tsawg leeg (15, 16).

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