Dab tsi yog qhov txawv ntawm pob zeb volcanic thiab plutonic?
Dab tsi yog qhov txawv ntawm pob zeb volcanic thiab plutonic?

Video: Dab tsi yog qhov txawv ntawm pob zeb volcanic thiab plutonic?

Video: Dab tsi yog qhov txawv ntawm pob zeb volcanic thiab plutonic?
Video: Keeb kwm qhov tseeb ntawm xwm kab tsis yog hmoob poj koob yawm txwv 5/16/2022 2024, Kaum ib hlis
Anonim

Qhov no yog vim plutonic pob zeb yog pob zeb tsim thaum magma txias thiab solidifies hauv qab lub ntiaj teb nto, thiab pob zeb volcanic yog pob zeb tsim thaum lava txias thiab solidifies ntawm lub ntiaj teb nto.

Hais txog qhov no, koj txhais li cas los ntawm plutonic pob zeb?

Nyob rau hauv geology, lub pluton yog lub cev ntawm intrusive igneous pob zeb (hu ua a plutonic pob zeb ) uas yog crystallized los ntawm magma maj mam txias hauv qab ntawm lub ntiaj teb. Hauv kev xyaum lub sij hawm pluton feem ntau txhais tau tias ib lub cev tsis muaj tabular igneous intrusive.

Qhov thib ob, yog quartz plutonic lossis volcanic? Thaum magma yeej tsis ncav cuag qhov chaw thiab txias los tsim kev nkag (dykes, sills thiab lwm yam) cov pob zeb uas tshwm sim yog hu ua plutonic . Nyob ntawm lawv cov ntsiab lus silica, lawv raug hu ua (hauv kev txiav txim siab ntawm cov ntsiab lus silica) gabbro, diorite, granite thiab pegmatite. Raws li qhov ntau, cov no yog cov pob zeb ntau tshaj plaws.

Ntxiv mus, uas muaj cov pob zeb loj dua pob zeb volcanic lossis plutonic pob zeb?

Volcanic pob zeb thiab plutonic pob zeb txawv feem ntau ntawm qhov ntawd pob zeb volcanic tsim ntawm qhov chaw ntawm lub ntiaj teb whereas plutonic pob zeb daim ntawv hauv qab no. Plutonic pob zeb tseem coarser grained, ua los ntawm loj interlocking siv lead ua hos pob zeb volcanic yog zoo-grained.

Koj tuaj yeem qhia tau li cas yog pob zeb yog volcanic?

Igneous pob zeb yog tsim los ntawm lava, magma los yog tshauv los ntawm a roob hluav taws tawg los yog ntws.

Yog tias tsis muaj cov nplej pom, siv cov qauv hauv qab no los faib koj cov pob zeb:

  1. Igneous pob zeb yog tuab heev thiab nyuaj.
  2. Cov pob zeb metamorphic kuj tuaj yeem muaj qhov zoo li iav.
  3. Sedimentary pob zeb uas tsis muaj nplej yuav zoo li cov av nplaum qhuav lossis av nkos.

Pom zoo: