Video: Dab tsi nta tuaj yeem pom hauv cov pob zeb yas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Clastic sedimentary pob zeb xws li breccia, conglomerate, sandstone, siltstone, thiab shale yog tsim los ntawm cov khoom siv hluav taws xob huab cua. Chemical sedimentary pob zeb , zoo li pob zeb ntsev, hlau ore, chert, flint, ib co dolomites, thiab ib co limestones, tsim thaum yaj cov ntaub ntawv precipitate los ntawm kev daws.
Hauv qhov no, yuav ua li cas cov pob zeb clastic tsim?
Clastic sedimentary pob zeb yog ua los ntawm cov khoom (clasts) ntawm pre-existing pob zeb . Tej daim pob zeb yog loosened los ntawm huab cua, ces thauj mus rau ib co phiab ordepression qhov twg sediment yog daig. Yog hais tias lub sediment yog faus tob, nws yuav compacted thiab cemented, ua sedimentary. pob zeb.
Tsis tas li ntawd, lub pob zeb twg muaj qhov zoo nkauj clastic? sedimentary pob zeb
Qhov thib ob, dab tsi yog qhov tseem ceeb ntawm cov pob zeb sedimentary?
Sediments tej zaum yuav muaj xws li: fragments ntawm lwm yam pob zeb uas feem ntau tau muab tso rau hauv me me, xws li xuab zeb, silt, los yog av nplaum. organic cov ntaub ntawv, los yog cov seem ntawm ib txwm muaj sia nyob. chemical precipitates, uas yog cov ntaub ntawv uas tau tso tseg tom qab dej evaporates los ntawm kev daws teeb meem.
Yuav ua li cas koj txheeb xyuas lub pob zeb clastic sedimentary?
Clastic Pob Zeb Cov muaj pes tsawg leeg ntawm clastic sedimentary pob zeb muab faib ua peb hom - av nplaum / silt, xuab zeb thiab gravel. Av nplaum thiab silt yog tsawg dua 1/16 mm. Cov no tsis pom cov unaidedeye. Xuab zeb yog clasts ntawm 1/16 thiab 2 mm nyob rau hauv loj, thiab gravel yog ntau tshaj 2 hli.
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
Koj puas tuaj yeem muab cov pob zeb tso rau hauv pob zeb tumbler?
Feem ntau hom pob zeb tsis ua haujlwm zoo hauv pob zeb tumbler. Yog tias koj sib tov zoo tumbling ntxhib nrog pob zeb uas qis dua qib qis, cov khoom, cov npoo ntse thiab tawg ntawm cov khoom hauv qab-tumbling-qib tej zaum yuav ua rau cov polish ntawm txhua lub pob zeb hauv lub thoob
Puas muaj cov pob txha pom nyob hauv cov pob zeb sedimentary?
Ntawm peb hom pob zeb loj, fossils feem ntau pom muaj nyob hauv pob zeb sedimentary. Tsis zoo li feem ntau cov pob zeb igneous thiab metamorphic, cov pob zeb sedimentary tsim ntawm qhov kub thiab txias uas tsis rhuav tshem cov pob txha
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 pob zeb hauv av twg tuaj yeem tsim cov pob zeb zoo li lub raum?
Hematite (los yog haematite) Kuj tseem muaj ntau hom hematite, qee yam yog: raum ore, ib qho loj, botryoidal (lumpy) lossis reniform (lub raum zoo li tus) daim ntawv; specularite, micaceous (flaky) daim ntawv; oolitic, ib daim ntawv sedimentary tsim los ntawm cov nplej me me; liab ochre, ib daim ntawv liab earthy