Hom kev sib tham twg yog qhov tseeb tshaj plaws?
Hom kev sib tham twg yog qhov tseeb tshaj plaws?

Video: Hom kev sib tham twg yog qhov tseeb tshaj plaws?

Video: Hom kev sib tham twg yog qhov tseeb tshaj plaws?
Video: Nkauj Ntseeg Tawm Tshiab 2023 | "Vajtswv Lub Siab Zoo Tshaj Plaws" 2024, Kaum ib hlis
Anonim

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

Ntxiv mus, dab tsi yog qhov tseeb tshaj plaws ntawm kev yos hav zoov cov khoom qub qub?

Radiocarbon sib tham yog cov feem ntau dav siv kev sib tham hauv archaeology . Nws tso siab rau ib qho phenomenon uas yog lub hauv paus ntawm lub neej hauv ntiaj teb.

Tom qab, lo lus nug yog, dab tsi yog txoj kev sib tham? Txoj kev sib tham feem ntau tau muab faib ua ob yam: kev txheeb ze thiab kev sib tham meej.

  • 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.

Yog li ntawd, txoj kev sib tham puas yog?

Trapped Charge Sib tham Qhov no suav nrog kev txheeb xyuas hauv ntau qhov sib txawv, xws li tus nqi hluav taws xob uas cov khoom raug nthuav tawm txhua xyoo. Cov no cov txheej txheem yog raug tsuas yog rau cov khoom siv txij li ob peb txhiab mus rau 500,000 xyoo - qee cov kws tshawb fawb tau sib cav tias qhov tseeb ploj zuj zus tom qab 100,000 xyoo.

Dab tsi yog 3 txoj hauv 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.

Pom zoo: