Fotobanka Profimedia | fotografie číslo: 0055704972
SPACE-SIR-BANI-YAS-ISLANDA picture released by the NASA Earth Observatory on March 15, 2010 and taken on January 31, 2010 shows Sir Bani Yas Island, located in the Gulf near the western coastline of the United Arab Emirates (UAE). Roughly 14 kilometers (9.7 miles) by 9 kilometers (6 miles), the island is the surface expression of a salt dome, which is pocket of salt minerals that balloons upward into overlying layers of sedimentary rocks. This astronaut photograph illustrates the varying character of surfaces on Sir Bani Yas. The central mountains of Jebel Wahid (image center) mark the location of the Sir Bani Yas salt dome. The dome has breached the surface but exposed salt, primarily gypsum, is eroded, leaving a rugged, insoluble cap made of fragments of the overlaying sedimentary and volcanic rocks. Sand and silt derived from the Jebel Wahid and surrounding gravel-covered areas form beaches along the outer edge of the island. - NASA EARTH OBSERVATORY = RESTRICTED TO EDITORIAL USE ( automatický překlad do češtiny ) ( zobrazit originální popisek v angličtině ) | ||
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