Mary Allen
Taw qhia: Tib neeg puas tuaj yeem ua Index Fossils?
Lub tswv yim ntawm tib neeg los ua index fossils yav tom ntej yuav zoo li kev tshawb fawb tsis tseeb, tab sis raws li kev tshawb fawb geological nce, nws tsim nyog tshawb nrhiav qhov ua tau. Index fossils yog cov cuab yeej tseem ceeb hauv geology uas pab cov kws tshawb fawb kom nkag siab txog keeb kwm ntawm lub ntiaj teb. Lawv yog cov pob txha ntawm cov kab mob uas nyob hauv lub sijhawm tshwj xeeb thiab siv rau hnub tsim pob zeb. Txawm li cas los xij, kev siv cov fossils index ib txwm muaj kev txwv, ua rau qee cov kws tshawb fawb xav txog cov txheej txheem tshiab rau kev siv cov fossils index.
Nyob rau hauv tsab xov xwm no, peb yuav tshawb txog lub tswv yim ntawm tib neeg li qhov peev xwm index fossils. Peb yuav tham txog dab tsi index fossils yog, lawv qhov tseem ceeb nyob rau hauv geological lub sij hawm, cov kev txwv ntawm cov tsoos index fossils, yuav ua li cas tib neeg yuav ua index fossils, cov txheej txheem rau siv tib neeg li index fossils, cov kev cov nyom thiab kev ncaj ncees ntawm kev siv tib neeg li index fossils, thiab cov yav tom ntej ntawm index fossils.
Nkag siab Index Fossils thiab lawv qhov tseem ceeb
Index fossils yog cov pob txha ntawm cov kab mob uas nyob hauv lub sijhawm tshwj xeeb thiab muaj cov yam ntxwv tshwj xeeb uas ua rau lawv pom tau yooj yim. Lawv tau siv los ua ib lub cuab yeej rau hnub tim tsim cov pob zeb thiab sib txuas cov pob zeb los ntawm ntau qhov chaw. Piv txwv li, yog hais tias ib hom ntawm trilobite pom nyob rau hauv lub pob zeb txheej, nws yog paub hais tias lub pob zeb txheej yog los ntawm lub sij hawm tshwj xeeb. Kev siv index fossils tso cai rau geologists los tsim ib lub sij hawm ntawm lub ntiaj teb keeb kwm.
Index fossils yog qhov tseem ceeb vim tias lawv muab txoj hauv kev rau hnub tim pob zeb tsim uas yuav tsis muaj lwm hom pob txha. Lawv kuj tso cai rau cov kws tshawb fawb txog kev sib txuas ntawm cov pob zeb los ntawm ntau qhov chaw, uas yog qhov tseem ceeb rau kev nkag siab txog keeb kwm ntawm lub ntiaj teb. Index fossils tuaj yeem muab cov ntaub ntawv hais txog ib puag ncig uas lawv nyob, xws li huab cua, thaj chaw, thiab ecology ntawm lub sijhawm. Lawv kuj muaj txiaj ntsig zoo rau kev nkag siab txog kev hloov pauv ntawm cov kab mob hauv lub sijhawm.