Dark, flat-topped mesas stand out amid the surrounding lighter-toned landscape in northwest Sudan. This detailed photograph, taken by astronauts aboard the International Space Station (ISS), shows dark surfaces in the hyper-arid eastern Sahara Desert in Sudan. These surfaces are flat-topped mesas
Photograph taken by astronauts aboard the International Space Station on December 25, 2019, shows dark surfaces in the hyper-arid eastern Sahara Desert in Sudan. This detailed photograph, taken by astronauts aboard the International Space Station , shows dark surfaces in the hyper-arid eastern Sahara Desert in Sudan. These surfaces are flat-topped mesas that rise 230–460 feet above the surrounding lighter-toned landscape.
A mesa is an isolated, flat-topped elevation, ridge, or hill that is surrounded on all sides by steep escarpments and stands distinctly above a surrounding plain. The bed of a dry river winds across the middle of the image. A dotted pattern of trees and clumps of bushes follow the line of the riverbed, indicating that roots are reaching the subsurface water.
Analysis of the height of the mesas and the rock units exposed in the cliff faces allows geologists to interpret the evolution of the area’s landscape. It is possible to conclude that the rock layer forming the two mesas was more extensive in the past, and that it has been stripped away by river and wind erosion to produce the younger, light-toned surface seen today.
Eroded desert landscapes with strongly contrasting darker and lighter-toned surfaces result from both physical and chemical
México Últimas Noticias, México Titulares
Similar News:También puedes leer noticias similares a ésta que hemos recopilado de otras fuentes de noticias.
Nicole erodes dunes, damages roads, homes in coastal St. Johns CountyNicole eroded dunes and damaged roads and homes in parts of coastal St. Johns County.
Leer más »
Whole Foods Englewood: Customers disappointed as grocer closes 6 years after opening in food desert'Whole Foods in Chicago's Englewood neighborhood on W. 63rd Street is closing after being open just six years an area considered a 'food desert.'
Leer más »
Whole Foods Englewood: Residents disappointed as grocer closes 6 years after opening in food desert'Whole Foods in Chicago's Englewood neighborhood on W. 63rd Street is closing after being open just six years an area considered a 'food desert.'
Leer más »
Ulta Beauty Unveils New Store FormatComing off of a strong sales year, the retailer has introduced a merchandising layout designed to make it easier for shoppers to navigate the store.
Leer más »
This Fancy British Beauty Boutique Has A Capsule Shop At WalmartThanks to a partnership with cult-favorite retailer SpaceNK, you can get coveted brands like Slip, By Terry, Lancer, Mio and more at Walmart.
Leer más »
Scent Beauty Picks Up Sparti Scents LicenseThe fragrance company, founded by industry veteran Steve Mormoris, is adding Sparti Scents to its growing portfolio of brands, which currently include Dolly Parton, Cher, and Whitney Houston and Stetson, among others.
Leer más »