Yucatan crater tob npaum li cas?

Video: Yucatan crater tob npaum li cas?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Chicxulub crater

Kev cuam tshuam qhov hluav taws kub / qauv
Txoj kab uas hla	150 km (93 mi) mus
Qhov tob	20 km (12 mi) mus
Impactor txoj kab uas hla	11–81 km (6.8–50.3 mi) UAS
Hnub nyoog	66.043 ± 0.011 Ma Cretaceous-Paleogene ciam teb

Tib neeg kuj nug, koj puas pom lub qhov tsua Yucatan?

Nyob rau sab qaum teb ntug dej hiav txwv ntawm lub Yucatan Peninsula, nyob ze lub nroog ntawm Chicxulub , Mexico, yog a qhov hluav taws kub txog 120 mais (193 km) inch. Txawm hais tias cov kev ntsuas loj heev, cov qhov hluav taws kub nyuaj rau saib , txawm yog koj sawv ntawm nws ntug. Kom tau txais daim ntawv qhia zoo, NASA cov kws tshawb fawb tau tshuaj xyuas nws los ntawm qhov chaw.

Koj puas tuaj yeem pom Chicxulub crater los ntawm qhov chaw? Cov Chicxulub crater tsis pom ntawm lub ntiaj teb saum npoo zoo li Meteor nto moo Crater ntawm Arizona. Txawm li cas los xij, muaj ob lub ntsiab lus ntawm qhov chaw qhov hluav taws kub . Kev ntsuas radar ntes tau los ntawm ib ntawm NASA qhov chaw shuttles tau pom ib qho kev nyuaj siab nyob rau hauv cov sediments uas faus lub qhov hluav taws kub.

Raws li txoj cai, qhov twg yog qhov 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.

Lub crater loj npaum li cas hauv Mexico?

Chicxulub Crater , muaj npe tom qab lub zos uas nyob ze nws qhov chaw, spans tshaj 110 mais dav , nrog txog ib nrab ntawm nws so hauv qab Gulf of Mexico.

Pom zoo:

Dab tsi yog qhov mantle qhov tob tob?

255km ua Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog qhov txheej txheem ntawm qhov tob tob? Cov sab nraud core , txog 2, 200 mais (1, 367 mais) tuab, feem ntau yog tsim los ntawm cov kua hlau thiab npib tsib xee. NiFe hlau nplaum sab nraud core kub heev, ntawm 4, 500 ° thiab 5, 500 ° C (8, 132 ° thiab 9, 932 ° Fahrenheit).

Lub Marianas Trench tob npaum li cas hauv mais?

Tom qab ntawd piav qhia rau cov tub ntxhais kawm tias Mariana Trench yog qhov tob tshaj plaws ntawm dej hiav txwv thiab qhov chaw tob tshaj plaws hauv ntiaj teb. Nws yog 11,034 meters (36,201 ko taw) tob, uas yog yuav luag 7 mais

Cov txheej ntawm lub ntiaj teb tob npaum li cas?

Structure Depth (km) Txheej 0–80 Lithosphere (hauv zos txawv ntawm 5 txog 200 km) 0–35 Crust (hauv zos txawv ntawm 5 thiab 70 km) 35–2,890 Mantle 80–220 Asthenosphere

Qhov nruab nrab qhov tob ntawm CCD calcite them qhov tob yog dab tsi)?

Lub calcite them nyiaj qhov tob nyob nruab nrab ntawm 4 thiab 6 km hauv cov dej hiav txwv niaj hnub no thiab aragonite them nyiaj qhov tob (ACD) tshwm sim nyob rau nruab nrab ntawm li 3 km saum toj no (Morse thiab Mackenzie, 1990 thiab cov ntaub ntawv nyob rau hauv)