Koj tuaj yeem qhia tau li cas tias lub pob zeb twg yog qhov qub tshaj plaws?
Koj tuaj yeem qhia tau li cas tias lub pob zeb twg yog qhov qub tshaj plaws?

Video: Koj tuaj yeem qhia tau li cas tias lub pob zeb twg yog qhov qub tshaj plaws?

Video: Koj tuaj yeem qhia tau li cas tias lub pob zeb twg yog qhov qub tshaj plaws?
Video: Saib Mis paub Poj niam (hluas nkauj) tus yam ntxwv lub siab 2024, Kaum ib hlis
Anonim

Lub hauv paus ntsiab lus ntawm superposition hais tias lub qub sedimentary pob zeb units yog nyob rau hauv qab, thiab cov yau tshaj yog nyob rau saum toj. Raws li qhov no, txheej C yog qub , ua raws li B thiab A. Yog li tag nrho cov txheej xwm raws li hauv qab no: Txheej C tsim.

Tsuas yog li ntawd, koj tuaj yeem qhia lub hnub nyoog ntawm cov pob zeb li cas?

Rau txiav txim tus txheeb ze hnub nyoog ntawm txawv pob zeb , geologists pib nrog qhov kev xav tias tshwj tsis yog muaj ib yam dab tsi tshwm sim, nyob rau hauv ib theem ntawm sedimentary pob zeb txheej , tus tshiab pob zeb txheej yuav nyob saum cov laus. Qhov no yog hu ua Rule of Superposition.

Ib yam li ntawd, cov yam ntxwv twg hauv ib txheej pob zeb loj dua li txheej pob zeb? Kev txhaum yeej ib txwm yau tshaj lub pob zeb nws hla dhau. Qhov chaw nyob qhov twg tshiab pob zeb txheej ntsib ntau qub pob zeb nto hauv qab lawv yog hu ua unconformity. Qhov kev tsis sib haum xeeb yog qhov sib txawv hauv cov ntaub ntawv geology. Ib qho kev tsis sib haum xeeb qhia qhov twg qee qhov pob zeb txheej tau ploj mus vim kev yaig.

Ntxiv mus, qhov twg koj yuav pom cov pob zeb qub tshaj plaws hauv ntiaj teb?

Cov pob zeb qub tshaj plaws hauv ntiaj teb Pom tau. Nuvvuagittuq Belt ntawm ntug dej hiav txwv ntawm Hudson Bay nyob rau sab qaum teb Quebec. Cov kws tshawb fawb tau pom cov qub paub pob zeb nyob ntiaj teb . Lawv yog 4.28 billion xyoo, ua rau lawv 250 lab xyoo qub dua li yav tas los pom pob zeb.

Dab tsi yog hom pob zeb qub tshaj plaws hauv ntiaj teb?

Acasta Gneiss Ua ntej nrhiav pom ntawm Nuvvuagittuq greenstone siv, Acasta Gneiss yog pob zeb qub tsim nyob rau hauv Lub ntiaj teb , cov qub qhov chaw uas hnub rov qab mus txog 4.031 billion xyoo.

Pom zoo: