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The Onyx River is an Antarctic meltwater stream which flows westward through the Wright Valley from Wright Lower Glacier and Lake Brownworth at the foot of the glacier to Lake Vanda, during the few months of the Antarctic summer. At 32 kilometres (20 mi) in length, it is the longest river in Antarctica.
On June 28, 2007, Oman's Arabian Oryx Sanctuary was the first site ever to be removed from the UNESCO World Heritage List. UNESCO's reason for this was the Omani government's decision to open 90% of the site to oil prospecting. The Arabian oryx population on the site has been reduced from 450 in 1996 to only 65 in 2007.
McMurdo Dry Valleys, Landsat 7 imagery acquired on December 18, 1999 The Dry Valleys are so named because of their extremely low humidity and lack of snow or ice cover. They are also dry because, in this location, the mountains are sufficiently high that they block seaward-flowing ice from the East Antarctic Ice Sheet from reaching the Ross
Oryx (/ ˈ ɒr ɪ k s / ORR-iks) is a genus consisting of four large antelope species called oryxes.Their pelage is pale with contrasting dark markings in the face and on the legs, and their long horns are almost straight.
Onyx River, 32 km: Largest lake: ... located in the Earth's southern hemisphere, ... Antarctica is the largest ice desert in the world.
Wright Valley contains the Onyx River, the longest river in Antarctica, Lake Brownworth, the origin of the Onyx River, and Lake Vanda, which is fed by the Onyx River. Its southwestern branch, South Fork, is the location of Don Juan Pond. The upland area known as the Labyrinth is at the valley's west end.
The Arabian oryx was known to be in decline since the early 1900s in the Arabian Peninsula. By the 1930 there were two separate populations isolated from each other. [6] In 1960, Lee M. Talbot reported that Arabian oryx appeared to be extinct in its former range along the southern edge of Ar-Rub' al-Khali.
Cave onyx is any of various kinds of flowstone considered desirable for ornamental architectural purposes. "Cave onyx" was a common term in certain areas of the United States—particularly the Tennessee - Alabama - Georgia area and the Ozarks —during the 19th and early 20th centuries, being applied to calcite speleothems that were banded in ...