Ib nrab melting cuam tshuam li cas magma muaj pes tsawg leeg?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Pib Kev sib xyaw ntawm Magma

Melting ntawm crustal qhov chaw yields ntau siliceous magmas . Feem ntau siliceous magmas daim ntawv los ntawm qis degrees ntawm ib nrab melting . Raws li qhov degree ntawm ib nrab melting nce, tsawg siliceous sau ntawv tuaj yeem tsim tau. Yog li ntawd, yaj mafic qhov chaw yog li yields felsic los yog nruab nrab magma

Tib neeg kuj nug, dab tsi yog ib nrab melting ntawm magma?

Ib nrab Melting . Ib txheej txheem hu ua ib nrab melting generates lub pob zeb molten, hu ua magma , uas txias los tsim cov pob zeb crystalline hauv lub ntiaj teb txheej txheej txheej, los yog nws cov crust. Hauv fractional fusion, lub yaj cov khoom yog sib cais los ntawm cov pob zeb uas tseem tshuav raws li nws tau tsim.

Qhov thib ob, cov khoom ntawm Magma yog dab tsi? 3.2 Magma thiab Magma Tsim. Magmas tuaj yeem sib txawv hauv qhov sib txawv, tab sis feem ntau lawv tau ua los ntawm yim lub ntsiab lus; raws li qhov tseem ceeb: oxygen Aluminium, silicon, hlau , calcium , sodium, magnesium, thiab poov tshuaj (Daim duab 3.6).

Qhov thib ob, dab tsi ua rau ib nrab melting?

Ib nrab melting tshwm sim thaum tsuas yog ib feem ntawm cov khoom yog yaj . Rau tib cov zaub mov no tuaj yeem tshwm sim thaum lawv nthuav tawm cov tshuaj, piv txwv li hauv olivines ntawm hlau thiab magnesium. Hauv cov pob zeb ua los ntawm ntau yam minerals sib txawv, qee qhov yuav yaj ntawm qhov kub qis dua li lwm tus.

Dab tsi yog fractional crystallization nws ntxiv lossis tshem tawm cov ntsiab lus ntawm magma?

pob zeb uas txias sai sai, uas zoo li tsim cov muaju me me. tuaj yeem hloov nrog ib qho. Thaum fractional crystallization , txawm li cas los xij, qhov kev hloov pauv tshwm sim vim tias txhua pawg ntawm cov zaub mov crystallizes, nws tshem tawm cov ntsiab lus los ntawm qhov seem magma tsis yog ntxiv tshiab cov ntsiab lus raws li tshwm sim nyob rau hauv ib nrab melting.