Pib 75 lab xyoo dhau los thiab txuas ntxiv mus txog lub sijhawm Cenozoic (65-2.6 Ma), Laramide Orogeny (kev tsim lub roob) tau pib. Cov txheej txheem no txhawb nqa cov roob Rocky niaj hnub no, thiab tsis ntev tom qab ntawd los ntawm cov volcanism ntau cov tshauv ntog, thiab cov av nkos, uas tau tso tseg cov pob zeb tsis zoo nyob rau hauv Tsis Muaj Caij Ntuj Sov.
How the Rocky Mountains form?
Lub Canadian Rocky Roob tau tsim thaum North American sab av tau raug rub mus rau sab hnub poob thaum lub sijhawm kaw dej hiav txwv tawm ntawm ntug dej hiav txwv sab hnub poob thiab sib tsoo nrog microcontinent tshaj 100 lab xyoo dhau los Raws li kev tshawb fawb tshiab los ntawm University of Alberta cov kws tshawb fawb.
Lub roob Rocky tau tsim li cas thiab thaum twg?
Lub roob Rocky tsim 80 lab rau 55 lab xyoo dhau los thaum lub sijhawm Laramide orogeny, uas muaj ntau daim phiaj pib zawv zawg hauv qab North American phaj. Lub kaum sab xis ntawm subduction yog ntiav, ua rau ib tug dav txoj siv ntawm lub roob khiav mus rau sab hnub poob North America.
Lub roob Rocky pib thiab xaus qhov twg?
Feem ntau, cov cheeb tsam suav nrog hauv Rockies stretch ntawm sab qaum teb Alberta thiab British Columbia sab qab teb mus rau New Mexico, qhov deb ntawm qee qhov 3, 000 mais (4, 800 km).
Puas Yellowstone nyob hauv roob Rocky?
Yellowstone National Park, nyob rau hauv Teb Chaws Asmeskas lub xeev Wyoming, txawm hais tias lub tiaj ua si kuj txuas mus rau Montana thiab Idaho thiab nwsRoob Roob Kub Twm yog ib feem ntawm Pob Zeb Roob.
