Cov txheej txheem:
Video: Dab tsi yog siv los faib cov pob zeb?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Pob zeb yog cais Raws li cov yam ntxwv xws li cov ntxhia thiab tshuaj muaj pes tsawg leeg, permeability, kev ntxhib los mos ntawm cov khoom sib xyaw, thiab particle loj. Qhov kev hloov pauv no ua rau peb chav kawm dav dav ntawm pob zeb : igneous, sedimentary thiab metamorphic.
Ces, koj yuav faib cov pob zeb li cas?
Pob zeb tuaj yeem muab faib ua peb yam kev faib tawm: igneous, sedimentary, thiab metamorphic. Cov kev ntsuam xyuas hauv qab no yog siv los ntawm cov kws tshaj lij rau cais cov pob zeb : Hardness Test – Minerals yog scaled nyob rau hauv thaj tsam ntawm 1 mus rau 10, nrog rau 1 yog softest thiab 10 hardest. Cov txheej txheem ntawm kev txiav txim siab hardness yog kev kuaj kos.
Ib sab saum toj no, vim li cas cov kws tshawb fawb tau faib cov pob zeb? Hom fragments uas ua rau kev ntxhib los mos ntawm a pob zeb yog cov lus qhia kom ua li cas pob zeb tsim, yog li nws yog lub hauv paus rau cais cov pob zeb . Dab tsi yog qhov tseem ceeb cov kws tshawb fawb siv rau cais cov pob zeb ? Cov kws tshawb fawb cais cov pob zeb raws li lawv tsim. igneous pob zeb Cov ntaub ntawv thaum magma los yog lava txias thiab crystallizes.
Tsis tas li ntawd, cov khoom dab tsi yog siv los faib cov pob zeb?
Cov khoom hauv qab no muaj txiaj ntsig zoo rau kev txheeb xyuas lub hom phiaj:
- Hardness.
- Cleavage.
- Luster.
- Xim.
- Streak pob zeb hmoov.
- Kev ntxhib los mos.
- Qauv.
Lub hauv paus ntawm kev faib cov pob zeb yog dab tsi?
CLASSIFICATION Kev faib cov pob zeb yog ua raws li ob yam, TEXTURE thiab TXOJ CAI . Qhov kev ntxhib los mos yuav tsum ua nrog qhov ntau thiab tsawg thiab cov duab ntawm cov pob zeb hauv av thiab lwm cov khoom siv hauv lub pob zeb, thiab qhov loj thiab cov duab sib cuam tshuam li cas. Cov yam ntxwv zoo li no yog tswj los ntawm cov txheej txheem uas tsim cov pob zeb.
Pom zoo:
Dab tsi yog qhov txawv ntawm cov pob zeb tsis foliated thiab foliated metamorphic pob zeb?
Foliated metamorphic pob zeb xws li gneiss, phyllite, schist, thiab slate muaj ib txheej txheej los yog banded zoo li uas yog tsim los ntawm raug tshav kub thiab qhia siab. Non-foliated metamorphic pob zeb xws li hornfels, marble, quartzite, thiab novaculite tsis muaj txheej txheej lossis banded zoo li
Dab tsi yog pob zeb tsim cov ntxhia pob zeb?
Cov pob zeb tsim cov zaub mov yog: feldspars, quartz, amphiboles, micas, olivine, garnet, calcite, pyroxenes. Minerals tshwm sim nyob rau hauv ib lub pob zeb nyob rau hauv me me yog hu ua "accessory minerals"
Lub npe rau lub pob zeb nruab nrab ntawm cov pob zeb uas txias heev yog dab tsi?
Extrusive igneous pob zeb
Dab tsi yog cov pob zeb niam txiv ntawm cov pob zeb metamorphic?
Metamorphic pob zeb Metamorphic pob zeb Texture Niam txiv pob zeb Phyllite Foliated Shale Schist Foliated Shale, granite thiab volcanic pob zeb Gneiss Foliated Shale, granite thiab volcanic pob zeb Marble Nonfoliated Limestone, dolostone
Cov yam ntxwv dab tsi uas cov kws tshawb fawb siv los faib cov pob zeb?
Feem ntau cov zaub mov tuaj yeem ua tus cwj pwm thiab cais los ntawm lawv lub cev tshwj xeeb: hardness, luster, xim, strrea Feem ntau cov zaub mov tuaj yeem ua tus yam ntxwv thiab cais los ntawm lawv lub cev tshwj xeeb: hardness, luster, xim, streak, tshwj xeeb gravity, cleavage, tawg, thiab tenacity