Kerderi is a group of abandoned settlements located on the dried seafloor of what was once the Aral Sea, in Kazakhstan.[1][2] Kerderi is thought to have been inhabited around the fourteenth century, when water levels were low enough to expose dry land.[3] It is not known when Kerderi was abandoned. However, some objects from Kerderi have been carbon-dated to as late as the start of the sixteenth century[4] and historical evidence suggests that the Aral Sea began slowly refilling after 1570, when the Amu Darya river resumed its flow into the Aral.[5] Kerderi was completely flooded; at 1960 water levels, the settlement was inundated under 19 metres (62 ft) of water.[3] When the Soviets diverted the Amu Darya and Syr Darya after the 1960s, the Aral retreated once more, and Kerderi became accessible for the first time in modern history. The settlements were rediscovered in 2001.[6][2] They have since served as important evidence of the Aral Sea's historic changes in depth.[7]
There are three distinct sites at Kerderi, which have been named Kerderi-1, Kerderi-2, and Aral Asar. The settlements are known for the ruins of two mausoleums.[8] The inhabitants of Kerderi-1 had access to fresh water from the Syr Darya, which once meandered nearby.[9] Archaeological evidence shows the inhabitants grew rice and wheat, and also raised livestock.[8] Aral Asar drew the benefits of trade as a stop on the Silk Road.[8]
Notes
[edit]- ^ Hammond, Norman (23 October 2006), "Aral Sea's revealing retreat", The Times, retrieved 8 June 2020
- ^ a b Krivonogov et al. 2014, p. 290.
- ^ a b Krivonogov 2009, p. 1146
- ^ Krivonogov et al. 2014, p. 292.
- ^ Cretaux et al. 2013 p. 105.
- ^ Plyaskina, Nadezhda (9 October 2007), "Аральская Атлантида", Время, archived from the original on 31 December 2018, retrieved 8 June 2020
- ^ Cretaux et al. 2013 p. 104.
- ^ a b c Krivonogov et al. 2014, p. 290-291.
- ^ Krivonogov, Sergei K. (30 April 2009). "The Aral: Sea and Land". SCIENCE First Hand. 22 (1): 1146–1150. Retrieved 8 June 2020.
Sources
[edit]- Cretaux, Jean-François; Letolle, René; Bergé-Nguyen, Muriel (2013). "History of Aral Sea level variability and current scientific debates". Global and Planetary Change. 110: 99–113. doi:10.1016/j.gloplacha.2013.05.006. Retrieved 8 June 2020.
- Krivonogov, S.K. (2009). "Extent of the Aral Sea Drop in the Middle Age". Doklady Earth Sciences. 428 (7): 1146–1150. doi:10.1134/S1028334X09070241. S2CID 129237372. Retrieved 8 June 2020.
- Krivonogov, S.K.; Burr, G.S.; Kuzmin, Y.V.; Gusskov, S.A.; Kurmanbaev, R.K.; Kenshinbay, T.I.; Voyakin, D.A. (1 March 2014). "The fluctuating Aral Sea: A multidisciplinary-based history of the last two thousand years". Gondwana Research. 26: 284–300. doi:10.1016/j.gr.2014.02.004. Retrieved 8 June 2020.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
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