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  Image: Geographic Location Direction Photo #: ISS052-E-8401 Date: Jun. 2017
Geographic Region: IRAN

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  View Low-Resolution Image  
  Salt Glacier, Zagros Mountains
The scale and form of many impressive features on Earth's surface can only be fully appreciated through an overhead view. The astronauts on board the International Space Station may enjoy the best overhead view of all.

The Zagros Mountains of southeastern Iran are the location of numerous salt domes and salt glaciers, formed as a result of the depositional history and tectonic forces operating in the region. While many of these landscape features are named on maps, the salt glacier in this photograph remains unnamed on global maps and atlases.

The vaguely hourglass (or bowtie) shaped morphology of the salt glacier is due to the central location of the salt dome, which formed within the central Zagros ridge crest (top and lower left). Salt extruded from the dome and then flowed downslope into the adjacent valleys. For a sense of scale, the distance across the salt glacier from northwest to southeast is approximately 14 kilometers (8 miles).

Much like what happens in flowing ice glaciers, concentric transverse ridges have formed in the salt perpendicular to the flow direction. While bright salt materials are visible in stream beds incising the salt glacier, older surfaces - those farther from the central salt dome - appear dark, most likely due to windblown dust deposition over time or entrainment of sediments in the salt during flow.

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Images: All Available Images Low-Resolution 488k
Mission: ISS052  
Roll - Frame: E - 8401
Geographical Name: IRAN  
Center Lat x Lon: 28.0N x 54.9E
Film Exposure:   N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus
Percentage of Cloud Cover-CLDP: 10
Camera: N6
Camera Tilt: 39   LO=Low Oblique, HO=High Oblique, NV=Near Vertical
Camera Focal Length: 1150  
Nadir to Photo Center Direction: W   The direction from the nadir to the center point, N=North, S=South, E=East, W=West
Stereo?:   Y=Yes there is an adjacent picture of the same area, N=No there isn't
Orbit Number:  
Date: 20170624   YYYYMMDD
Time: 123016   GMT HHMMSS
Nadir Lat: 27.1N  
Latitude of suborbital point of spacecraft
Nadir Lon: 57.7E  
Longitude of suborbital point of spacecraft
Sun Azimuth: 282   Clockwise angle in degrees from north to the sun measured at the nadir point
Space Craft Altitude: 219   nautical miles
Sun Elevation: 32   Angle in degrees between the horizon and the sun, measured at the nadir point
Land Views:  
Water Views:  
Atmosphere Views:  
Man Made Views:  
City Views:  
Photo is not associated with any sequences

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