Video: Dab tsi ua rau petrification?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Ntawm no, nws yuav siv sij hawm ntev npaum li cas rau ib yam dab tsi los petrify?
Siv lawv txoj kev, lawv tuaj yeem ua tau ua petrify ntoo hauv ib hnub. Cov txheej txheem pib los ntawm kev noj ntoo thiab muab tso rau hauv ib da dej ntawm cov kua qaub li ib hnub. Tom ntej no, nws tau soaked nyob rau hauv ib tug tub ntim nrog ib tug silica tov. Thaum cua qhuav, lawv ci ntoo hauv argon roj ntawm qhov kub txog li 1,400 centigrade rau 2 teev.
Qhov thib ob, qhov txawv ntawm fossilization thiab petrification yog dab tsi? Thaum lub cev pob txha raug hloov pauv, nws tau hais tias yog ua petrified . Piv txwv li, ua petrified ntoo tuaj yeem hloov nrog chalcedony, lossis plhaub hloov nrog pyrite. Qhov no txhais tau hais tias tawm ntawm tag nrho cov pob txha, tsuas yog tus tsiaj nws tus kheej tuaj yeem ua tau fossilized los ntawm petrification . Tab sis " ua petrified "muaj lub suab zoo rau nws.
Ib yam li ntawd, ib tug yuav nug, tus neeg puas tuaj yeem petrified?
ua petrify . Yog koj ntshai ib tug heev lawv ua tau tsis txav, koj ua petrify lawv. Petrify yog ua ib yam dab tsi zoo li ib lub pob zeb los yog kom tig mus rau pob zeb. Feem ntau, ib yam dab tsi petrifies a tus neeg los yog tsiaj thaum nws ntshai lawv heev.
Yuav ua li cas thaum ntoo lossis pob txha ua petrified?
Cov pwm no puv nrog cov xuab zeb, thiab ob qho tib si pwm thiab nws cov filling harden ntau lab xyoo. Sediment tuaj yeem khaws cov nroj tsuag lub neej. Nroj tsuag tuaj yeem ua rau muaj kev xav hauv cov av tawv tawv lossis ua petrified ntoo tom qab mus dhau ntau yam txheej txheem ib yam li fossilized dinosaur pob txha ua.
Pom zoo:
Dab tsi ntawm pipette yog volumetric thiab nws siv rau dab tsi?
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Yuav ua li cas petrification tshwm sim?
Petrification (petros txhais tau tias pob zeb) tshwm sim thaum cov organic teeb meem hloov pauv tag nrho los ntawm cov zaub mov thiab cov pob txha tau tig mus rau pob zeb. Qhov no feem ntau tshwm sim los ntawm kev sau cov pores ntawm cov ntaub so ntswg, thiab inter thiab intra cellular spaces nrog cov zaub mov, ces dissolving cov organic teeb meem thiab hloov nws nrog minerals
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom