Video: Dab tsi ntawm pob zeb yog magnetite?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
igneous
Thiab cov lus nug yog, dab tsi yog magnetite pob zeb?
Magnetite yog a pob zeb ntxhia thiab ib qho ntawm cov hlau tseem ceeb, nrog rau cov tshuaj formulaFe3O4. Nws yog ib qho ntawm cov oxides ntawm hlau, thiab yog ferrimagnetic; nws yog attracted rau ib tug hlau nplaum thiab yuav magnetized los ua ib tug mus tas li hlau nplaum nws tus kheej. Me nplej ntawm magnetite tshwm sim nyob rau hauv yuav luag tag nrho cov igneous thiab metamorphic pob zeb.
Ib sab saum toj no, magnetite tsim li cas? Yog hais tias mafic magma cools maj mam txaus, ntom magnetite Crystals tuaj yeem kho raws li lawv crystallize, mus rau daim ntawv loj magnetite ore lub cev nrog ib tug muaj zog magnetic cim. Raws li magnetite - bearing igneous thiab sedimentary pob zeb daim ntawv , cov magnetite nyob rau hauv lawv isaligned nrog lub ntiaj teb magnetic teb.
Tsuas yog li ntawd, hom pob zeb twg yog hematite?
Hematite yog ib qho ntawm cov minerals ntau tshaj plaws nyob rau hauv lub ntiaj teb nto thiab nyob rau hauv qhov ntiav crust. Nws yog hlau oxide nrog tshuaj lom neeg muaj pes tsawg leeg ntawm Fe2O3. Nws yog acommon pob zeb - tsim cov ntxhia hauv cov sedimentary, metamorphic, thiab igneous pob zeb ntawm qhov chaw thoob plaws ntiaj teb. Hematite yog qhov tseem ceeb tshaj plaws ore ofiron.
Dab tsi yog magnetite feem ntau siv rau?
Magnetite yog ib qho tseem ceeb ntawm cov khoom siv hluav taws xob zoo li nws yog siv rau tsim hluav taws xob. Magnetite , vim nws cov khoom sib nqus, yog dav siv nyob rau hauv compasss thiab lwm yam khoom siv navigation. Vim nws txoj kev nyiam cov hlau nplaum, magnetite feem ntau yog siv rau nrhiav cov hlau nplaum thiab magnetic teb.
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
Dab tsi ntawm pob zeb ua rau ib qho chaw pob zeb?
Sedimentary pob zeb