Ib qho piv txwv ntawm lub hav V-shaped yog Grand Canyon nyob rau sab hnub poob Tebchaws Meskas. Tom qab ntau lab xyoo ntawm kev yaig, tus dej Colorado tau hla lub pob zeb ntawm Colorado Plateau thiab tsim ib tug ntxhab-sided canyon V-shaped canyon hu ua Grand Canyon.
V thiab U-puab hav tsim nyob qhov twg?
Valley glaciers carve U-puab kwj, as opposed to the V-shaped valleys carved by rivers. Thaum lub sij hawm thaum lub ntiaj teb huab cua txias, glaciers tsim thiab pib ntws downslope. Feem ntau, lawv taug txoj kev yooj yim tshaj plaws, nyob hauv qhov qis V-shaped kwj ib zaug los ntawm cov dej ntws.
Yuav ua li cas yog qhov txawv ntawm hav?
Hav yog ib qho ntawm cov av ntau tshaj plaws nyob rau saum npoo ntawm lub ntiaj teb. Muaj peb hom kwj ha, lub kwj ha V-zoo li tus, lub tiaj tiaj tiaj thiab lub hav U-shaped.
V-puab hav yog dab tsi?
V-valley yog tsim by erosion los ntawm ib tug dej los yog kwj deg dhau sij hawm. Nws yog hu ua V-valley raws li cov duab ntawm lub hav yog tib yam li tsab ntawv "V ".
Lub xeev twg muaj U-zoo li hav?
Qee lub hav zoo li U-shaped los ntawm thoob plaws ntiaj teb muaj cov ncauj lus hauv qab no
- Yosemite Valley, Yosemite National Park, California, USA. Yosemite National Park hauv Tebchaws Meskas yog lub tsev rau ob peb lub hav U-shaped. …
- Glacier National Park, Montana, USA. …
- Zezere Valley, Portugal. …
- Nant Ffrancon Valley, Snowdonia, Wales.
