Video: Qhov Hole hauv Pob Zeb yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub Pob Zeb yog qhov nqaim thiab qhov tob tob nyob rau sab hnub poob ntawm Glen Canyon, nyob rau yav qab teb Utah nyob rau sab hnub poob Tebchaws Meskas. Ua ke nrog lwm lub hav zoov nyob rau sab hnub tuaj ntawm Colorado River, nws tau muab txoj hauv kev los ntawm qhov uas yuav yog thaj tsam loj ntawm thaj av tsis tuaj yeem.
Hais txog qhov no, lub qhov hauv pob zeb hu ua dab tsi?
Pit yog lub npe dav dav rau a qhov nyob rau hauv sedimentary pob zeb uas yog tsim los ntawm huab cua. Cov pits me yog ib yam ntawm alveolar lossis honeycomb weathering, thiab cov pits loj yog hu ua tafoni.
ua cas koj ho mus txog lub qhov pob zeb? Rau tau nyob ntawd, tsuas yog chaw nres tsheb hauv qhov chaw nres tsheb (yog tias qhov chaw nres tsheb me me puv, tsis txhob ntxhov siab. Lub Phoenix Zoo yog nyob ib sab ntawm lub tiaj ua si thiab koj tuaj yeem nrhiav chaw nres tsheb rau ntawd) Thaum nres ua raws cov Lub Pob Zeb taug kev nyob rau hauv qab ntawm lub pob zeb tsim.
Xav txog qhov no, qhov nyob deb npaum li cas ntawm lub pob zeb?
Lub Pob Zeb . 55.5km ua Ntev-hauv-lub-pob zeb Txoj kev pib ntawm Txoj Kev Loj 12, sab qab teb sab hnub tuaj ntawm lub nroog Escalante, thiab xaus rau ntawm ntug pob tsuas saib Lake Powell's Register Pob zeb thiab Cottonwood Canyon.
Puas yog qhov Hole hauv Rock dog phooj ywg?
Lub Pob Zeb Txoj kev yog 0.3 mais kev lag luam nruab nrab thiab rov qab txoj kev nyob ze Phoenix, Arizona uas muaj kev pom zoo nkauj thiab zoo rau txhua qib kev txawj ntse. Cov dev tseem tuaj yeem siv txoj kev no tab sis yuav tsum tau khaws cia rau ntawm txoj hlua khi.
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
Lub pob zeb foliated twg yog qhov qis tshaj plaws metamorphic pob zeb?
slate Ua li no, marble puas yog qib qis metamorphic pob zeb? Qee qhov piv txwv ntawm non-foliated Cov pob zeb metamorphic yog marble , quartzite, thiab hornfels. Marble yog metamorphosed limestone. Thaum nws tsim, cov calcite crystals yuav loj hlob tuaj, thiab tej yam sedimentary textures thiab fossils uas muaj tam sim no raug puas tsuaj.