Dab tsi yog txoj kev sib tham yooj yim tshaj plaws siv los ntawm paleontologists?

Cov txheej txheem:

Txoj kev sib tham feem ntau tau muab faib ua ob yam: kev txheeb ze thiab kev sib tham tsis tseeb

Video: Dab tsi yog txoj kev sib tham yooj yim tshaj plaws siv los ntawm paleontologists?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Xov tooj cua sib tham tso cai rau cov hnub nyoog raug muab rau cov pob zeb txheej, uas tuaj yeem ua tau siv los txiav txim lub hnub nyoog ntawm fossils. Paleontologists siv xov tooj cua sib tham mus kawm cov fossilized egghells ntawm Genyornis, ib tug noog uas ploj lawm los ntawm Australia.

Hauv qhov no, cov txheej txheem sib tham dab tsi feem ntau siv los ntawm paleontologists?

Txhawm rau tsim lub hnub nyoog ntawm pob zeb lossis pob txha pob txha, cov kws tshawb fawb siv qee hom moos los txiav txim qhov hnub nws tau tsim. Geologists feem ntau siv radiometric txoj kev sib tham , raws li lub ntuj radioactive decay ntawm tej yam xws li poov tshuaj thiab carbon, raws li txhim khu kev qha moos rau hnub cov xwm txheej thaum ub.

Tsis tas li ntawd, dab tsi yog 3 txoj hauv kev ntawm kev sib tw pob zeb? Ua ke nrog cov hauv paus ntsiab lus stratigraphic, radiometric sib tham Cov txheej txheem yog siv nyob rau hauv geochronology los tsim kom tau lub sij hawm geology. Ntawm cov txheej txheem paub zoo tshaj plaws yog radiocarbon dating, poov tshuaj - argon sib tam thiab uranium -kev sib tham.

Ntawm no, dab tsi yog qhov tseeb tshaj plaws kev sib tham?

Ib tug ntawm feem ntau dav siv thiab paub zoo meej sib tham Cov txheej txheem yog carbon-14 (los yog radiocarbon) sib tham , uas yog siv rau hnub organic seem. Qhov no yog cov txheej txheem radiometric vim nws yog raws li kev siv hluav taws xob tawg.

Txoj kev sib tham yog dab tsi?

Txoj kev sib tham feem ntau tau muab faib ua ob yam: kev txheeb ze thiab kev sib tham tsis tseeb

Kwv tij sib tham.
Muaj kev sib tham.
Cov cim sau.
Kev ua yeeb yam.
Hnub nyoog sib npaug stratigraphic markers.
Stratigraphic kev sib raug zoo.

Pom zoo:

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