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File:ISS-26 Tidal flats and channels on Long Island, Bahamas.jpg

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English: Tidal flats and channels on Long Island, Bahamas are featured in this image photographed by an Expedition 26 crew member on the International Space Station.
  • The islands of the Bahamas in the Caribbean Sea are situated on large depositional platforms (the Great and Little Bahama Banks) composed mainly of carbonate sediments ringed by fringing reefs – the islands themselves are only the parts of the platform currently exposed above sea level. The sediments are formed mostly from the skeletal remains of organisms settling to the sea floor; over geologic time, these sediments will consolidate to form carbonate sedimentary rocks such as limestone.
  • This detailed photograph provides a view of tidal flats and tidal channels near Sandy Cay on the western side of Long Island, located along the eastern margin of the Great Bahama Bank. The continually exposed parts of the island have a brown coloration in the image, a result of soil formation and vegetation growth (left).
  • To the north of Sandy Cay an off-white tidal flat composed of carbonate sediments is visible; light blue-green regions indicate shallow water on the tidal flat. Tidal flow of seawater is concentrated through gaps in the anchored land surface, leading to formation of relatively deep tidal channels that cut into the sediments of the tidal flat. The channels, and areas to the south of the island, have a vivid blue coloration that provides a clear indication of deeper water (center).
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Source http://spaceflight.nasa.gov/gallery/images/station/crew-26/html/iss026e005121.html
Author NASA
This image or video was catalogued by Johnson Space Center of the United States National Aeronautics and Space Administration (NASA) under Photo ID: ISS026-E-005121.

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This file is in the public domain in the United States because it was created by the Image Science & Analysis Laboratory, of the NASA Johnson Space Center. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (NASA media use guidelines or Conditions of Use of Astronaut Photographs). Photo source: ISS026-E-5121.

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Date/TimeThumbnailDimensionsUserComment
current16:19, 1 November 2015Thumbnail for version as of 16:19, 1 November 20154,288 × 2,848 (3.9 MB)Ras67 (talk | contribs)new rendered in high quality from NASA's raw data
14:26, 23 June 2012Thumbnail for version as of 14:26, 23 June 20124,288 × 2,848 (720 KB)Ras67 (talk | contribs){{Information |Description ={{en|1=Tidal flats and channels on Long Island, Bahamas are featured in this image photographed by an Expedition 26 crew member on the International Space Station. * The islands of the Bahamas in the Caribbean Sea are sit...

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