Crustal composition and mantle heat flow: Implications from surface heat flow and radiogenic heat production in the Variscan Erzgebirge (Germany)

Förster, Andrea; Förster, Hans‐Jürgen

doi:10.1029/2000jb900279

Cited by 59 publications

(39 citation statements)

References 83 publications

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“…28 mW m -2 ) beneath the Niedźwiedź Massif. Our result is close to conclusions Förster and Förster (2000), who indicate that the mantle heat flow is 20-30 mW m -2 in Erzgebirge on the basis of a study of the correlation between heat flow and upper crustal heat production. In the area of Sudetes, Christensen et al (2001) suggest the mantle heat flow of 42 mW m -2 beneath the Kozákov, which is used for their modelling, assuming surface heat flow of 70 mW m -2 .…”

Section: Discussionsupporting

confidence: 77%

“…The crustal segment of Erzgebirge (NW Bohemian Massif) described by Förster and Förster (2000) contains significant granites enriched in heat-producing elements, resulting in high surface heat flow reaching locally 112 mW m -2 . The crustal segment beneath the Niedźwiedź Massif is poor in granites, which contain smaller amounts of heat-producing elements, resulting in smaller heat flow of 70 mW m -2 .…”

Section: Discussionmentioning

confidence: 99%

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Lithosphere thermal structure at the eastern margin of the Bohemian Massif: a case petrological and geophysical study of the Niedźwiedź amphibolite massif (SW Poland)

Puziewicz

Czechowski

Krysiński

et al. 2011

Int J Earth Sci (Geol Rundsch)

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The crustal section beneath amphibolite Niedźwiedź Massif (Fore-Sudetic Block in NE Bohemian Massif), modelled on the basis of geological and seismic data, is dominated by gneisses with subordinate granites (upper and middle crust) and melagabbros (lower crust). The geotherm was calculated based on the chemical analyses of the heat-producing elements in the rocks forming the crust and the measurements of their density and heat conductivity. The results were verified by heat flow calculations based on temperature measurements from 1,600 m deep well in the Niedźwiedź Massif and by temperaturedepth estimates in mantle xenoliths coming from the nearby ca. 4.5 My basanite plug in Lutynia. The paleoclimate-corrected heat flow in the Niedźwiedź Massif is 69.5 mW m -2 , and the mantle heat flow is 28 mW m -2 . The mantle beneath the Massif was located marginally relative to the areas of intense Cenozoic thermal rejuvenation connected with alkaline volcanism. This results in geotherm which is representative for lithosphere parts located at the margins of zones of continental alkaline volcanism and at its waning stages. The lithosphereasthenosphere boundary (LAB) beneath Niedźwiedź is located between 90 and 100 km depth and supposedly the rheological change at LAB is not related to the appearance of melt.

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Section: Discussionsupporting

confidence: 77%

Section: Discussionmentioning

confidence: 99%

Lithosphere thermal structure at the eastern margin of the Bohemian Massif: a case petrological and geophysical study of the Niedźwiedź amphibolite massif (SW Poland)

Puziewicz

Czechowski

Krysiński

et al. 2011

Int J Earth Sci (Geol Rundsch)

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“…1). Förster and Förster (2000) pointed out that high-heat production Variscan granites, occurring to a depth of ~15km within a metamorphic basement of the western ER (Švancara et al, 2000), substantially contribute to high heat flow in the Krušné hory (Erzgebirge) region.…”

Section: Brittle-ductile Transition In the Crustmentioning

confidence: 99%

Intraplate seismicity in the western Bohemian Massif (central Europe): A possible correlation with a paleoplate junction

Babuška¹,

Plomerová²,

Fischer³

2007

Journal of Geodynamics

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Please cite this article as: Babuška, V., Plomerová, J., Fischer, T., Intraplate seismicity in the western Bohemian Massif (central Europe): A possible correlation with a paleoplate junction, Journal of Geodynamics (2007Geodynamics ( ), doi:10.1016Geodynamics ( /j.jog.2007 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.

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“…The parameters assigned to mantle lithosphere, for which a peridotite composition is used, are from Rudnick and Fountain (1995) and Förster and Förster (2000). For the thermal conductivity, temperature and pressure dependence is included and at temperature >600 °C a component of heat transfer by radiation is also included.…”

Section: Thermophysical Properties Of the Lithospherementioning

confidence: 99%

Heat flow and lithospheric thermal regime in the Northeast German Basin

2008

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Crustal composition and mantle heat flow: Implications from surface heat flow and radiogenic heat production in the Variscan Erzgebirge (Germany)

Cited by 59 publications

References 83 publications

Lithosphere thermal structure at the eastern margin of the Bohemian Massif: a case petrological and geophysical study of the Niedźwiedź amphibolite massif (SW Poland)

Lithosphere thermal structure at the eastern margin of the Bohemian Massif: a case petrological and geophysical study of the Niedźwiedź amphibolite massif (SW Poland)

Intraplate seismicity in the western Bohemian Massif (central Europe): A possible correlation with a paleoplate junction

Heat flow and lithospheric thermal regime in the Northeast German Basin

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