Yuav ua li cas peridotite tsim?
Yuav ua li cas peridotite tsim?

Video: Yuav ua li cas peridotite tsim?

Video: Yuav ua li cas peridotite tsim?
Video: La Yang Ft. Phuab Vaj - Yuav Ua Li Cas [Official MV] 2024, Kaum ib hlis
Anonim

Txheej peridotites yog igneous sediments thiab daim ntawv los ntawm mechanical tsub zuj zuj ntawm ntom olivine crystals. Ib txhia peridotite Cov ntaub ntawv los ntawm nag lossis daus thiab sib sau ua ke ntawm olivine thiab pyroxene los ntawm mantle-derived magmas, xws li cov basalt muaj pes tsawg leeg.

Xav txog qhov no, dab tsi yog peridotite siv rau?

Peridotites yog cov pob zeb tseem ceeb ntawm kev lag luam vim lawv feem ntau muaj chromite - tsuas yog ore ntawm chromium; lawv tuaj yeem ua pob zeb rau pob zeb diamond; thiab, lawv muaj peev xwm ua tau siv li ib qho khoom siv rau kev nqus cov pa roj carbon dioxide.

Tom qab ntawd, lo lus nug yog, qhov peridotite zoo li cas? Peridotite yog ib tug heev ntom, coarse-grained, olivine-nplua nuj, ultra-mafic intrusive pob zeb. Nws tau sau tseg rau nws cov ntsiab lus silica tsawg, thiab muaj tsawg heev lossis tsis muaj feldspar (orthoclase, plagioclase).

Ib sab saum toj no, puas yog peridotite intrusive lossis extrusive?

Intrusive Cov pob zeb igneous crystallize hauv qab lub ntiaj teb saum npoo, thiab qhov txias qeeb uas tshwm sim muaj tso cai rau cov pob zeb loj tuaj. Piv txwv ntawm cuam tshuam Cov pob zeb igneous yog diorite, gabbro, granite, pegmatite, thiab peridotite . Extrusive igneous pob zeb tawg mus rau saum npoo, qhov chaw uas lawv txias sai sai los ua cov muaju me me.

Puas yog peridotite yog basaltic?

Nws yog lub hauv paus pob zeb ntawm basalt . Basaltic magma daim ntawv thaum peridotite yog ib nrab yaj. Basalt thiab peridotite txawv nyob rau hauv muaj pes tsawg leeg vim pob zeb yog mixs ntawm minerals, tab sis txhua pob zeb muaj nws tus kheej melting kub.

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