Fossils tsis yog qhov seem ntawm lub cev nws tus kheej! Lawv yog pob zeb. … pob txha, plhaub, plaub, thiab nplooj tuaj yeem dhau los ua pob txha. Fossils tuaj yeem loj lossis me heev.
Koj tuaj yeem qhia tau li cas yog pob zeb yog pob txha?
Tseem yog ib lub tswv yim zoo los nrhiav qhia tias lub pob zeb muaj pob txha ua ntej yuav ua kom tawg, ib feem ntawm pob txha yuav pom ntawm pob zeb.. Koj tuaj yeem txheeb xyuas cov limestone los ntawm nws cov xim grey sib zog thiab tawv, nws yuav tsum nyuaj heev kom tawg yam tsis muaj rauj.
Txhua yam tuaj yeem ua pob txha?
Tsis yog txhua yam uas muaj sia yuav dhau los ua pob txha. Qhov tseeb, tsawg kawg kab mob muaj hmoo txaus kom khaws cia zoo li feem ntau ntawm cov pob txha peb pom. Tag nrho cov pob txha muaj nyob hauv cov pob zeb sedimentary.
pob zeb dab tsi yog fossilized?
Ntau cov pob txha "npaum" hauv pob zeb sedimentary. Thaum me me ntawm pob zeb thiab pob zeb (hu ua sediment) koom ua ke ntau lab xyoo, lawv dhau los ua pob zeb sedimentary. Nroj tsuag thiab tsiaj txhu uas dhau los ua Sandwiched hauv cov pob zeb no nws thiaj li tig mus rau hauv pob txha. Ob qho piv txwv ntawm cov pob zeb sedimentary yog sandstone thiab shale.
Cov pob zeb twg tsis tuaj yeem muaj pob txha?
Igneous pob zeb daim ntawv los ntawm cov pob zeb molten, thiab tsis tshua muaj pob zeb hauv lawv. Cov pob zeb metamorphic tau muab tso rau hauv lub siab loj, ua kom sov, squashed lossis stretched, thiab pob txha pob txha feem ntau tsis muaj sia nyob cov xwm txheej no.
