Lokitaung
| Lokitaung | |
|---|---|
 Lokitaung
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| Coordinates: 4°16′N 35°45′E / 4.27°N 35.75°ECoordinates: 4°16′N 35°45′E / 4.27°N 35.75°E | |
| Country | Kenya |
| Province | Rift Valley Province |
| Time zone | EAT (UTC+3) |
Lokitaung is a settlement in Kenya's Rift Valley Province, a few miles inland of northwest Lake Turkana. Lokitaung is the site of the 36-million year old Lokitaung Basalt lava flows, which lay atop Cretaceous sediments including dinosaur bones. The basalts are over 1 kilometer thick, and approximately 100 kilometers wide.
Lokitaung is located in northern Kenya near the Ethiopian border, and bounded by Lake Turkana to the east, and the larger part of the Labur range to the west. Lokitaung sits within a portion of range, is immediately inland and west of Lowarengak, south of Todenyang and north of Kangamajoj village. The Kachoda area lies to the northwest. Lokitaung is surrounded by extensive plains called Ngikalapatan in Turkana.
Nearby geological features include the Lokitaung Gorge and the Lubur Sandstone sedimentary sequence, more than 500 meters (1,600 ft) thick. The Lubur Sandstone likely dates to the Cretaceous age of the Mesozoic, and includes dinosaur, turtle and crocodilian fossil bones.
In the Lokitaung gorge, these sediments are overlain by over 1,000 meters (3,300 ft) of basalt lava flows extending to the west of Lokitaung, called the Lokitaung basalts. Each flow is up to 50 meters (160 ft) thick, and many display characteristic columnar jointing. The basalts have been dated to 36 million years ago, though it is apparent from other, nearby flows that volcanism continued after the Lokitaung basalts formed.
While the Lokitaung basalts are thought to extend over 100 kilometers (62 mi) latitudinally, their full range is not known. Similarities in age and composition between Lokitaung basalts on the west of Lake Turkana, and basalts from the Nabwal hills and formation on the east of the lake, suggest these two basalts were once much closer geographically. In the 36 million years since their formation, rifting may have subsequently separated them by as much as 25-90km, depending on their original locations during eruption.
Between 1913 and 1931, Sudanese troops operating in Northern Kenya and southern Sudan suffered from four outbreaks of Visceral leishmaniasis, or Kala-azar, including one in Lokitaung. The exact site of the outbreak was thought to be at the Moru-Yakippi watering hole, later called Loelli. In 1941, an outbreak of Kala-azar struck soldiers from the King's African Rifles while they were stationed in Nyeri, and after they had passed through Lokitaung.
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Wikipedia