A model of the lithosphere thickness in the region of the Carpathians |
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Authors: | Pavel Pajdušák Jaroslava Plomerová Vladislav Babuška Reviewer Č Tomek |
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Institution: | (1) Geophysical Institute, Slovak Acad. Sci., Bratislava;(2) Geophysical Institute, Czechosl. Acad. Sci., Prague |
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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
лaмu 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
о u Трaнсuльвaнско
о бaссеŭнов, a сaмaя мощнaя лumосферa(около 180 км) нaхо?rt;umся nо?rt; Южнымu Кaрnamaмu. В ?rt;ру
uх чaсmях Кaрnamско
о nоясa мощносmь лumосферы нaрaсmaеm во внешнuх зонaх в нanрaвленuu к ю
о-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
нumоmеллурuческuмu ?rt;aннымu nо
лубuне слоя nовышенноŭ элекmроnрово?rt;uмосmu в верхнеŭ мaнmuu.
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