Lub pob zeb uas tsim cov escarpment yog thawj zaug tso ua cov av nkos rau hauv pem teb hiav txwv thaum ub kwv yees li 430 lab xyoo dhau los. Dab tsi tseem tshuav yog qhov tshwm sim ntawm kev txhawb nqa, huab cua, thiab yaig.
Niagara Escarpment tau tsim li cas?
Nws tsim li cas? Lub escarpment tsim ntau lab xyoo dhau los ntawm qhov sib txawv ntawm kev yaig los ntawm huab cua thiab cov kwj ntawm pob zeb sib txawv hardnesses. Lub Niagara Escarpment muaj lub caprock ntawm dolostone uas yog ntau resistant thiab overlies weaker, yooj yim eroded shale pob zeb.
Niagara Escarpment tau tsim ntev npaum li cas?
Niagara Escarpment tau tsim thiab muaj ua ntej glaciations, kwv yees li 430 - 415 lab xyoo dhau los.
Niagara Escarpment yog dab tsi thiab vim li cas nws thiaj li muaj nuj nqis?
Tus escarpment yog nto moo tshaj plaws li lub pob tsuas uas tus dej Niagara plunges ntawm Niagara Falls, uas nws muaj npe. Lub Escarpment yog UNESCO Ntiaj Teb Biosphere Reserve. Nws muaj cov hav zoov qub tshaj plaws thiab cov ntoo nyob rau sab hnub tuaj North America.
Niagara Escarpment pib thiab ua tiav qhov twg?
Niagara Escarpment, tseem hu ua Lake Ridge, ridge nyob rau hauv North America uas txuas ntxiv (nrog so) rau ntau tshaj 650 mais (1, 050 km) los ntawm sab hnub poob Wisconsin sab qaum teb mus rau Qhov Rooj Peninsula nyob rau sab hnub tuaj ib feem ntawm lub xeev, dhau los ntawm Manitoulin Islands ntawm Ontario nyob rau sab qaum teb Lake Huron, sab qab teb sab hnub tuajBruce …
