![]() ![]() Geographic Region: IRAN Feature: ZAGROS MOUNTAINS, SALT GLACIER |
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. |
Images: | All Available Images Low-Resolution 488k |
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Mission: | ISS052 |
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Roll - Frame: | E - 8401 |
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Geographical Name: | IRAN |
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Features: | ZAGROS MOUNTAINS, SALT GLACIER |
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Center Lat x Lon: | 28.0N x 54.9E |
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Film Exposure: | N=Normal exposure, U=Under exposed, O=Over exposed, F=out of Focus |
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Percentage of Cloud Cover-CLDP: | 10 |
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Camera:: | N6 |
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Camera Tilt: | 39 | LO=Low Oblique, HO=High Oblique, NV=Near Vertical |
Camera Focal Length: | 1150 |
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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 |
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Orbit Number: | |
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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 |
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Photo is not associated with any sequences |
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