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A model of the lithosphere thickness in the region of the Carpathians
Authors:Pavel Pajdušák  Jaroslava Plomerová  Vladislav Babuška  Reviewer Č Tomek
Institution:(1) Geophysical Institute, Slovak Acad. Sci., Bratislava;(2) Geophysical Institute, Czechosl. Acad. Sci., Prague
Abstract:Summary Directionally independent average P residuals computed for waves of teleseismic events arriving under various azimuths and incidence angles provided the basis for estimating the lithosphere thickness beneath the Carpathians and their surroundings. A thin lithosphere (60–80 km) was determined for the Pannonian Basin and the Transylvanian Basin, the thickest lithosphere(about 180 km) beneath the South Carpathians at the contact with the Moesian Platform. In other parts of the Carpathian belt the lithosphere thickens beneath the outer parts towards the SW margin of the East-European and the Moldavian Platforms. The lithosphere thicknesses derived from P residuals correlate well with the magnetotelluric determinations of a layer of increased electrical conductivity in the upper mantle.
Резюме Осре?rt;ненные временные невязкu Р волн, незaвuсuмые оm нanрaвленuя u рaссчumaнные ?rt;ля у?rt;aленных землеmрясенuŭ uз волн, nрuхо?rt;ящuх nо?rt; рaзнымu aзuмуmaмu u у MediaObjects/11200_2005_BF01649628_f21.jpgлaмu na?rt;енuя, ?rt;aюm основaнuе ?rt;ля оnре?rt;еленuя мощносmu лumосферы Кaрnam u uх окресmносmеŭ. Тонкaя лumосферa(60–80 км) оnре?rt;еленa ?rt;ля Пaннонско MediaObjects/11200_2005_BF01649628_f22.jpgо u Трaнсuльвaнско MediaObjects/11200_2005_BF01649628_f23.jpgо бaссеŭнов, a сaмaя мощнaя лumосферa(около 180 км) нaхо?rt;umся nо?rt; Южнымu Кaрnamaмu. В ?rt;ру MediaObjects/11200_2005_BF01649628_f24.jpguх чaсmях Кaрnamско MediaObjects/11200_2005_BF01649628_f25.jpgо nоясa мощносmь лumосферы нaрaсmaеm во внешнuх зонaх в нanрaвленuu к ю MediaObjects/11200_2005_BF01649628_f26.jpgо-зana?rt;ноŭ окрauне Восmочно-Евроnеŭскоŭ u Мол?rt;aвскоŭ nлamформ. Нaблю?rt;aеmся хорошaя корреляцuя мощносmu лumосферы, оnре?rt;еленноŭ нa основе невязок временu Р волн, с мa MediaObjects/11200_2005_BF01649628_f27.jpgнumоmеллурuческuмu ?rt;aннымu nо MediaObjects/11200_2005_BF01649628_f28.jpgлубuне слоя nовышенноŭ элекmроnрово?rt;uмосmu в верхнеŭ мaнmuu.
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