Video: Chert yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Chert yog dab tsi ? Chert yog pob zeb sedimentary tsim microcrystalline los yog cryptocrystalline quartz, cov ntxhia daim ntawv ntawm silicon dioxide (SiO2). Nws tshwm sim li nodules, concretionary masses, thiab raws li txheej deposits.
Kuj nug, ua li cas chert yog tsim?
Chert yog lub pob zeb sedimentary uas muaj yuav luag tag nrho ntawm silica (SiO 2), thiab tuaj yeem daim ntawv nyob rau hauv ntau txoj kev. Biochemical chert yog tsim Thaum cov siliceous skeletons ntawm marine plankton yog yaj thaum lub sij hawm diagenesis, nrog silica yog precipitated los ntawm cov resulting tov.
Tsis tas li ntawd, qhov txawv ntawm chert thiab flint yog dab tsi? Txawm hais tias muaj ntau qhov tsis meej pem txog qhov no, chert yog hais txog cryptocrystalline lossis polycrystalline quartz uas feem ntau ua raws li nodules hauv limestone. Flint yog tshwj tseg rau cov khoom siv uas tsim hauv chalk lossis marl. Flint tsuas yog ib hom chert.
Tsis tas li ntawd, koj yuav txheeb xyuas li cas chert?
Chert yog dav, tab sis tsis dav paub los ntawm pej xeem raws li ib tug txawv pob zeb hom. Chert muaj plaub yam kev kuaj mob: lub waxy luster, ib tug conchoidal (plhaub-puab) tawg ntawm silica ntxhia chalcedony uas composes nws, ib tug hardness ntawm xya ntawm lub Mohs nplai, thiab ib tug du (tsis-clastic) sedimentary kev ntxhib los mos.
chert puas yog tshuaj?
Chert . Chert yog ib lub pob zeb sedimentary hauv chav kawm hu ua tshuaj sedimentary pob zeb. Nws yog tsim los ntawm microcrystalline quartz.
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