Video: Lub pob zeb serpentine zoo li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov no mineral muab cov serpentinite nws cov yam ntxwv lub teeb rau tsaus ntsuab xim. Serpentine cov zaub mov yog ua los ntawm cov ntawv me me ntawm silica tetrahedrons uas tau xoob tuav ua ke. Cov tsis muaj zog bonds ntawm cov ntawv no muab serpentine nws greasy los yog scaly saib , thiab xav tias nplua ( nyiam ib tug nab tawv).
Ib yam li ib tug yuav nug, hom pob zeb twg yog serpentine?
metamorphic pob zeb
Tom qab ntawd, lo lus nug yog, qhov twg kuv tuaj yeem nrhiav serpentine pob zeb? Serpentine minerals tsim qhov twg peridotite, dunite, thiab lwm yam ultramafic pob zeb Ua raws li hydrothermal metamorphism. Ultramafic pob zeb tsis tshua muaj nyob rau ntawm lub ntiaj teb nto tab sis muaj ntau nyob rau hauv dej hiav txwv moho, ciam teb ntawm lub hauv paus ntawm dej hiav txwv crust thiab lub Upper mantle.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi serpentine zoo li?
Serpentine pob zeb yog kua-ntsuab mus rau dub thiab yog feem ntau mottled nrog lub teeb thiab tsaus xim xim. Nws qhov chaw feem ntau muaj ci los yog siv quav ciab- nyiam tsos thiab ib tug me ntsis soapy xav. Serpentine feem ntau yog nplua-grained thiab compact tab sis tej zaum yuav granular, platy, los yog fibrous nyob rau hauv tsos.
Dab tsi yog serpentine pob zeb siv rau?
Cov serpentine subgroup (ib feem ntawm kaolinite- serpentine pawg) yog cov zaub ntsuab, xim av, lossis cov pob zeb uas pom muaj nyob hauv serpentinite pob zeb . Lawv yog siv li ib qhov chaw ntawm magnesium thiab asbestos, thiab ua lub pob zeb zoo nkauj. Lub npe xav tias los ntawm cov xim ntsuab yog cov nab.
Pom zoo:
Lub pob zeb twg loj dua pob zeb?
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Yuav ua li cas lub pob zeb sedimentary ua ib lub pob zeb metamorphic?
Sedimentary pob zeb ua metamorphic nyob rau hauv lub pob zeb voj voog thaum lawv raug tshav kub thiab siab los ntawm faus. Cov kub kub yog tsim thaum lub ntiaj teb daim hlau tectonic txav ib ncig, ua kom sov. Thiab thaum lawv sib tsoo, lawv tsim roob thiab metamorphose
Lub npe rau lub pob zeb nruab nrab ntawm cov pob zeb uas txias heev yog dab tsi?
Extrusive igneous pob zeb
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
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.