Heat Flow Studies in the European Part of the Soviet Union

Кутас, Р. І.; Lubimova, E. A.; Smirnov, Ya. B.

doi:10.1007/978-3-642-95357-6_32

Cited by 6 publications

(6 citation statements)

References 2 publications

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“…Matoshko et al (2004Matoshko et al ( , 2009 have documented the Late Cenozoic fluvial sequences of major rivers in Eastern Europe, the Dnieper, Don and Volga, which show alternations of uplift and subsidence. The combination of low surface heat flow (typicallỹ 40-50 mW m −2 ; e.g., Kutas et al, 1979) and typically thick mafic underplating (e.g., Ilchenko, 1996) causes the mobile layer beneath the East European Platform to be thin (~5-6 km thick). suggested that the reversals in vertical crustal motion may reflect the thinness of the mobile layer and the resulting relative brevity of the uplift response following each phase of climate change.…”

Section: Fluvial Deposits In Regions Where the Mobile Lower-crust Is mentioning

confidence: 99%

Fluvial sequences as evidence for landscape and climatic evolution in the Late Cenozoic: A synthesis of data from IGCP 518

Westaway

Bridgland

Sinha

et al. 2009

Global and Planetary Change

103

111

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Section: Fluvial Deposits In Regions Where the Mobile Lower-crust Is mentioning

confidence: 99%

Fluvial sequences as evidence for landscape and climatic evolution in the Late Cenozoic: A synthesis of data from IGCP 518

Westaway

Bridgland

Sinha

et al. 2009

Global and Planetary Change

103

111

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“…The Black Sea-Caspian Sea cross-section of Khalilov et al the south Caspian basin and the adjacent areas of southern Azerbaijan and southern Turkmenia. Beneath the Kura The marine DSS profiles across the central Caspian Sea (Aksenovich et al 1962;Gal'perin et al 1962) show the Depression in southeast Azerbaijan the crustal thickness varies from 45 to 60 km. The sedimentary layer is 5 to 7 km thick, fundamental difference in crustal structure between the northern and southern Caspian basin.…”

Section: Turkmenia 3 Crustal Cross-section For the South Caspian Basimentioning

confidence: 99%

“…4 compares laboratory velocity measurements (Cermák & Rybach 1979), which is not significantly different from much of the surrounding region. In addition, the high made at high pressure and temperature ( Volarovich, Volynets (Kutas, Lubimova & Smirnov 1979;Cermák & Rybach 1979;Berberian, M., 1976. An explanatory note on the first seismotectonic Lubimova 1980).…”

Section: Turkmenia 3 Crustal Cross-section For the South Caspian Basimentioning

confidence: 99%

“…The DSS studies of Gal'perin, moved northwards relative to the Eurasian plate, subduction shifted to the northern boundary of the marginal sea. Closure Kosminskaya & Krakshina (1962), Neprochnov (1968), Rezanov & Chamo (1969), Neprochnov, Kosminskaya & of this marginal sea~3.5 Ma resulted in uplift and crustal thickening of the Caucasus and left relic oceanic crust under-Malovitsky (1970) and Yegorkin & Matushkin (1970) show that the crust of the south Caspian basin lacks the 'granitic' lying part of the Black Sea and south Caspian basin. Ş engö r (1990) suggests that the south Caspian basin opened as a large layer seen in the surrounding region.…”

mentioning

confidence: 99%

“…Data from the IRIS seismograph ABKT (Fig. 1) Gal'perin et al 1962;Neprochnov 1968;Ryaboy 1969; The use of receiver functions to determine crust and uppermantle structure beneath three-component broad-band seismo- Yegorkin & Matushkin 1970;Bulin 1978;Khalilov, Mekhtiyev & Khain 1987) in the region within and surrounding the south graph stations is a well-established technique (see Langston 1979;Owens, Zandt & Taylor 1984;Ammon, Randall & Zandt Caspian basin. The crust and upper-mantle structure of the south Caspian 1990). We have determined true-amplitude radial and tangential receiver functions (Langston 1979;Ammon 1991) for the has anomalous effects on seismic waves propagating across the basin.…”

mentioning

confidence: 99%

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The crustal structure of the southern Caspian region

1998

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The south Caspian basin appears to behave as a relatively rigid aseismic block within the otherwise deforming Alpine–Himalayan orogenic belt. This anomalous character suggests that there is a fundamental compositional difference between the crust of the south Caspian basin and that of the surrounding region. Five new estimates of crustal velocity structure beneath the southern Caspian region are determined by the teleseismic receiver function method. These models show that the crust in Turkmenia along the trend of the Apshceron–Balkhan Sill–Kopet Dag Mountains is 50 km thick. In the southwestern part of the Caspian basin the crust is 33 km thick and consists of a 13 km thick sedimentary section lying on a high‐velocity (Vp∼7.1 km s−1) lower‐crustal section. In the southeastern part of the basin the crust is 30 km thick and consists of a 10 km thick sedimentary section overlying a 20 km thick low‐velocity (Vp∼5.8 km s−1) crystalline crust. The receiver function models are combined with velocity models from previous Russian Deep Seismic Sounding studies into a ∼1800 km long ESE–WNW‐trending crustal cross‐section across the Kura Depression, the south Caspian basin and the Kopet Dag Mountains. The most significant features of this crustal model are the 20 km variation in thickness of Cenozoic sedimentary basin deposits, the absence of a ‘granitic’ (Vp∼5.8–6.5 km s−1) crustal layer in the central part of the south Caspian basin, and 20 km of crustal thinning beneath the central part of the basin. The Moho beneath the south Caspian basin has a broad arch‐like structure whose western boundary is a relatively narrow zone across which the crust thins rapidly (∼20 km thinning over a 100 km zone) and whose eastern boundary has a more gradual change in crustal thickness (∼20 km thinning over a 400 km zone). The velocity–depth profiles derived from the receiver functions are compared to laboratory velocity estimates made at pressures and temperatures appropriate for the lower crust in Turkmenia, but the seismic P‐wave data alone do not permit differentiation between the various possible rock types. The crustal model developed for the south Caspian basin is consistent with the hypothesis that the crystalline crust of the basin is a section of oceanic crust that is being overthrust by the continental crust around much of its margins. However, we cannot rule out the possibility that the crystalline crust beneath the basin is a section of lower continental crust whose upper crustal section has been removed by erosion or faulting.

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