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Posuha 3900 rokiv do n e yavlyala soboyu najintensivnishe spustoshennya epohi golocenu Vona oznamenuvala zakinchennya neolitichnogo subplyuvialu i jmovirno stala pochatkovoyu podiyeyu peretvorennya Sahari na suchasnu pustelyu Posuha viklikala vsesvitnyu migraciyu v dolini richok napriklad z centralnoyi Pivnichnoyi Afriki v dolinu Nilu sho z chasom prizvelo do viniknennya pershih kompleksnih visokoorganizovanih civilizacij v IV tis do n e 1 Posuha pov yazuyetsya z ostannim z cikliv saharskogo nasosu Suputnikovij znimok Sahari U nizhnij chastini Kongolezki dzhungli Zmist 1 Prichini 2 Rezultat 3 Div takozh 4 PrimitkiPrichini RedaguvatiModel Klauzena i spivavtoriv Claussen et al 1999 peredbachaye shvidke spustelyuvannya pov yazane z atmosfernoyu vzayemodiyeyu roslinnosti vidrazu pislya rizkogo poholodannya podiyi Bonda 4 2 Bond i spivavtori Bond et al 1997 vstanovili sho v Pivnichnij Atlantici blizko 5900 rokiv tomu malo misce oholodzhennya viklikane ulamkami polyarnogo lodovika Cya podiya na yihnyu dumku vhodit do poslidovnist ciklichnih podij Bonda kvaziperiodichnogo ciklu podij oholodzhennya Atlantiki sho vidbuvayutsya z chastotoyu blizko 1470 rokiv 500 rokiv 3 Po ryadu prichin slidom za kozhnoyu z poperednih posuh vidpovidnih ciklam Bonda vklyuchayuchi poholodannya 6200 rokiv do n e vidbuvalosya vidnovlennya kolishnih klimatichnih umov na sho vkazuyut chislenni periodi vologosti v istoriyi Sahari 10000 6000 rokiv tomu div neolitichnij subplyuvial 4 Prote za podiyeyu 3900 rokiv do n e posliduvalo chastkove vidnovlennya sho suprovodzhuvalosya priskorenim spustelyuvannya v podalshomu tisyacholitti Primirom Kremaski Cremaschi 1998 navodit svidchennya shvidkogo spustelyuvannya regionu Tadrart Akakus na pivdenno zahodi Liviyi sho prijnyav formu priskorenoyi eolovoyi eroziyi nastup piskiv i rujnuvannya navisiv nad kolishnimi skelnimi pritulkami lyudej 5 Takozh posuha 3900 do n e vidznachayetsya yak holodna podiya v donnih vidkladennyah ozera Erhan KNR Rezultat RedaguvatiNa Blizkomu Shodi posuha privela do rizkogo zavershennya Ubejdskogo periodu Istorichno period blizko 3900 r do n e pov yazanij zi zrostannyam nasilstva zaznachenim yak v Yegipti tak i na vsomu Blizkomu Shodi sho vreshti resht prizvelo do periodu rannih carstv yak v Starodavnomu Yegipti tak i v Shumeri Na dumku Dzhejmsa Demeya i Stiva Tejlora danij period buv pov yazanij z vstanovlennyam patriarhalnogo suspilnogo ladu socialnim rozsharuvannyam poyavoyu regulyarnoyi armiyi nasilstvom nad ditmi rozvitkom lyudskogo individualizmu vidchuzhennyam tilesnoyi kulturi viniknennyam antropomorfnih bozhestv i koncepciyeyu linijnogo istorichnogo rozvitku 6 Div takozh RedaguvatiPodiyi BondaPrimitki Redaguvati Brooks Nick 2006 Cultural responses to aridity in the Middle Holocene and increased social complexity Quaternary International 151 1 29 49 Bibcode 2006QuInt 151 29B doi 10 1016 j quaint 2006 01 013 Claussen Mark ta in 1999 Simulation of an Abrupt Change in Saharan Vegetation in the Mid Holocene Geophysical Research Letters 26 14 2037 40 Bibcode 1999GeoRL 26 2037C doi 10 1029 1999GL900494 Arhiv originalu za 14 listopada 2012 Procitovano 17 travnya 2012 Bond G ta in 1997 A Pervasive Millennial Scale Cycle in North Atlantic Holocene and Glacial Climates Science 278 5341 1257 66 Bibcode 1997Sci 278 1257B doi 10 1126 science 278 5341 1257 Arhiv originalu za 27 lyutogo 2008 Procitovano 17 travnya 2012 Petit Maire N Beufort L Page N 1997 Holocene climate change and man in the present day Sahara desert U Nuzhet Dalfes H Kukla G Weiss H Eds Third Millennium BC Climate Change and Old World Collapse Berlin Springer s 297 308 ISBN 978 3 540 61892 8 Cremaschi M 1998 Late Quaternary geological evidence for environmental changes in south western Fezzan Libyan Sahara U Cremaschi M Di Lernia S Eds Wadi Teshuinat Palaeoenvironment and prehistory in south western Fezzan Libyan Sahara Firenze Ed All Insegna del Giglio s 13 47 ISBN 978 88 7814 144 5 Taylor Steve 2005 The Fall the insanity of the ego in human history and the dawning of a new era O Books Otrimano z https uk wikipedia org w index php title Posuha 3900 roku do n e amp oldid 34955425