An astronaut onboard the International Space Station (ISS) photographed a small semicircular mountain within the Dasht-e Kavir Desert, about 130 kilometers (80 miles) southeast of the capital metropolis of Tehran. The width of this picture, taken with a 1150-millimeter lens, represents a distance of 17 kilometers (10 miles).
Geologists have mapped this mountain as a collection of volcanic rocks, and from the colours of the rock layers they’ll interpret the presence of various minerals and levels of volcanic exercise. The intricate sample of valleys additionally inform a narrative of the erosion of the rocky mountain.
In distinction, the decrease half of the picture exhibits clean, flat surfaces referred to as alluvial followers. An virtually straight line break is seen within the picture between the hills and the followers—geologists have mapped it as a fault line. The fault cuts throughout the brittle rocks of the hills, resulting in its title: Half Mountain.
The fan surfaces stand almost 900 meters (2,900 ft) decrease than the summit of the hills. Most of the streams circulate from the hills towards the followers, the place they deposit sediment eroded from the hills. The coloration of alluvial fan sediments typically displays the colour of the dad or mum rocks upstream. For occasion, sediment eroded from the darker rocks of the mountain (heart left) provides the accompanying followers a darker coloration. Similarly, light-toned sediment from rocks in the midst of the mountain provides some followers a lighter tone. In this desert area, the streams finish within the (usually dry) Lake Namak, simply exterior the decrease margin of the picture.
Astronaut {photograph} ISS065-E-212403 was acquired on July 30, 2021, with a Nikon D5 digital digicam utilizing a focal size of 1150 millimeters. It is supplied by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center. The picture was taken by a member of the Expedition 65 crew. The picture has been cropped and enhanced to enhance distinction, and lens artifacts have been eliminated. The International Space Station Program helps the laboratory as a part of the ISS National Lab to assist astronauts take footage of Earth that will probably be of the best worth to scientists and the general public, and to make these pictures freely accessible on the Internet. Additional pictures taken by astronauts and cosmonauts could be seen on the NASA/JSC Gateway to Astronaut Photography of Earth. Caption by Justin Wilkinson, Texas State University, JETS Contract at NASA-JSC.
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