Thaum twg lub asteroid tua cov dinosaurs?
Thaum twg lub asteroid tua cov dinosaurs?

Video: Thaum twg lub asteroid tua cov dinosaurs?

Video: Thaum twg lub asteroid tua cov dinosaurs?
Video: Keeb kwm ntawm tus dej nom khong (ນ້ຳຂອງ) ntws qhov twg los 21/12/2021 2024, Kaum ib hlis
Anonim

Cretaceous-Paleogene (K-Pg) extinction tshwm sim, tseem hu ua Cretaceous-Tertiary (K-T) extinction, yog ib qho kev ploj tuag tam sim ntawm peb-quarters ntawm cov nroj tsuag thiab tsiaj txhu hauv ntiaj teb, kwv yees li. 66 lab xyoo dhau los.

Ib yam li ntawd, tib neeg nug, qhov twg yog lub hnub qub uas tua cov dinosaurs?

iːk??luːb/; Mayan: [t?'ik?ulu?]) yog qhov cuam tshuam faus rau hauv qab Yucatán Peninsula hauv Mexico.

Tsis tas li ntawd, dab tsi yog qhov loj ntawm lub hnub qub uas tua cov dinosaurs? iːk??luːb/ CHEEK-sh?-loob), tseem hu ua K/Pg impactor thiab (ntau dua speculatively) raws li Chicxulub asteroid , yog ib asteroid los yog lwm lub cev xilethi-aus ib txhia 11 txog 81 mais (7 mus rau 50 mi) inch thiab muaj pawg ntawm 1.0 × 1015 thiab 4.6 × 1017 kg, uas ntaus lub ntiaj teb kawg ntawm

Kuj nug, thaum twg lub asteroid tsoo lub ntiaj teb?

Qhov cuam tshuam ntawm Chicxulub prehistoric, 66 lab xyoo dhau los , ntseeg tau tias yog qhov ua rau ntawm Cretaceous-Paleogene extinction tshwm sim.

Qhov twg yog qhov cuam tshuam crater uas tua cov dinosaurs?

Chicxulub qhov hluav taws kub yog ib tug loj heev qhov hluav taws kub . Qee cov kws tshawb fawb ntseeg tias Chicxulub qhov hluav taws kub yog tsim los ntawm lub meteor uas ua rau lub extinction ntawm lub dinosaurs , thiab ntau lwm yam tsiaj. Nws yog ib feem hauv Yucatán Peninsula hauv Mexico thiab ib nrab hauv qab dej.

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