Video: Yuav ua li cas petrification tshwm sim?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Petrification (petros txhais tau tias pob zeb) tshwm sim thaum cov organic teeb meem tag nrho hloov los ntawm cov zaub mov thiab cov pob txha yog tig mus rau pob zeb. Qhov no feem ntau tshwm sim los ntawm sau cov pores ntawm cov ntaub so ntswg, thiab inter thiab intra cellular chaw nrog minerals, ces dissolving cov organic teeb meem thiab hloov nws nrog minerals.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi ua rau petrification?
Petrified ntoo yog fossil. Nws tsim thaum cov khoom cog yog faus los ntawm sediment thiab tiv thaiv kev lwj vim oxygen thiab kab mob. Tom qab ntawd, cov dej hauv av nplua nuj nyob hauv cov khoom tawg tau ntws los ntawm cov xuab zeb, hloov cov khoom qub cog nrog silica, calcite, pyrite, lossis lwm yam khoom siv tsis zoo xws li opal.
Qhov thib ob, cov txheej txheem petrification siv sijhawm ntev npaum li cas? Cov txheej txheem ntawm ua phem ntoo kawg siv lab xyoo. Piv txwv li, lub ua petrified hav zoov hauv Arizona ntseeg tau tias tau tsim los ntawm cov ntoo uas loj hlob ntau dua 225 lab xyoo dhau los. Geologists hais tias cov ntoo poob rau hauv hav zoov los nag yuav luag 100 mais deb.
Tsis tas li lo lus nug yog, tib neeg puas tuaj yeem petrified?
Petrified ntoo typifies tus txheej txheem no, tab sis tag nrho cov kab mob, los ntawm cov kab mob mus rau vertebrates, ua tau ua ua petrified (txawm hais tias nyuaj, muaj teeb meem ntau dua xws li pob txha, beaks, thiab shells ciaj sia txoj kev zoo dua li cov mos mos xws li cov leeg nqaij, plaub, lossis tawv nqaij).
Dab tsi yog hu ua petrification?
Petrification yog thaum lub cev muaj sia maj mam tig mus rau hauv pob zeb. Cov txheej txheem scientific ntawm petrification koom nrog cov txheej txheem qeeb heev ntawm cov zaub mov saturating lub cev - uas tuaj yeem yog cov nroj tsuag lossis tsiaj - thiab sau nws qhov pores thiab kab noj hniav nrog lub pob zeb tawv. Petrified ntoo yog ib qho txiaj ntsig ntawm petrification.
Pom zoo:
Qhov twg tshwm sim thawj lub teeb nyob ntawm qhov tshwm sim lossis lub teeb ywj pheej?
Lub Teeb-Dependent thiab Lub Teeb-Independent Reactions. Cov tshuaj tiv thaiv lub teeb, lossis cov tshuaj tiv thaiv lub teeb-dependent, yog thawj zaug. Peb hu lawv ob leeg thiab ob lub npe. Nyob rau hauv lub teeb-dependent tshwm sim ntawm photosynthesis, lub zog ntawm lub teeb propels lub electrons los ntawm ib tug photosystem mus rau lub high-zog lub xeev
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