Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Abstract

This study presents an analysis of seismic cutoff depth and heat flow field of the Fennoscandian Shield. Altogether 4190 earthquake events from years 2000-2015 in Finnish and Swedish national catalogues have been applied for this purpose. To model the heat flow field, 223 values from both countries and their neighbouring areas were used to find out if any correlation between the maximum earthquake focal depth (cutoff depth) and surface heat flow exists. Because heat flow and cutoff depth appear unrelated, it seems evident that regional variations of heat flow are caused by shallow lying variations (i.e., in upper crust) in heat production instead of deeper sources. Therefore one-dimensional layer models with temperature-dependent thermal conductivity are functional for the shield area.
Original languageEnglish
Title of host publicationLithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts
EditorsIlmo Kukkonen ... [et al.]
Number of pages4
Place of PublicationHelsinki
PublisherInstitute of Seismology, University of Helsinki
Publication date2016
Pages149-152
ISBN (Print)978-952-10-5081-7
ISBN (Electronic)978-952-10-9282-5
Publication statusPublished - 2016
MoE publication typeB3 Article in conference proceedings
EventLitosphere Symposium - Espoo, Finland
Duration: 9 Nov 201611 Nov 2016
Conference number: 9

Publication series

NameReport. S
PublisherUniversity of Helsinki, Institute of Seismology
Number65
ISSN (Print)0357-3060

Fields of Science

  • 1171 Geosciences

Cite this

Veikkolainen, T. H. K., Kukkonen, I. T., & Tiira, T. (2016). Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield. In I. Kukkonen ... [et al.] (Ed.), Lithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts (pp. 149-152). (Report. S; No. 65). Helsinki: Institute of Seismology, University of Helsinki.
Veikkolainen, Toni Henri Kristian ; Kukkonen, Ilmo Tapio ; Tiira, T. / Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield. Lithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts. editor / Ilmo Kukkonen ... [et al.]. Helsinki : Institute of Seismology, University of Helsinki, 2016. pp. 149-152 (Report. S; 65).
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abstract = "This study presents an analysis of seismic cutoff depth and heat flow field of the Fennoscandian Shield. Altogether 4190 earthquake events from years 2000-2015 in Finnish and Swedish national catalogues have been applied for this purpose. To model the heat flow field, 223 values from both countries and their neighbouring areas were used to find out if any correlation between the maximum earthquake focal depth (cutoff depth) and surface heat flow exists. Because heat flow and cutoff depth appear unrelated, it seems evident that regional variations of heat flow are caused by shallow lying variations (i.e., in upper crust) in heat production instead of deeper sources. Therefore one-dimensional layer models with temperature-dependent thermal conductivity are functional for the shield area.",
keywords = "1171 Geosciences",
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booktitle = "Lithosphere 2016",
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Veikkolainen, THK, Kukkonen, IT & Tiira, T 2016, Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield. in I Kukkonen ... [et al.] (ed.), Lithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts. Report. S, no. 65, Institute of Seismology, University of Helsinki, Helsinki, pp. 149-152, Litosphere Symposium, Espoo, Finland, 09/11/2016.

Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield. / Veikkolainen, Toni Henri Kristian; Kukkonen, Ilmo Tapio; Tiira, T.

Lithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts. ed. / Ilmo Kukkonen ... [et al.]. Helsinki : Institute of Seismology, University of Helsinki, 2016. p. 149-152 (Report. S; No. 65).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

TY - GEN

T1 - Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield

AU - Veikkolainen, Toni Henri Kristian

AU - Kukkonen, Ilmo Tapio

AU - Tiira, T.

N1 - Volume: Proceeding volume:

PY - 2016

Y1 - 2016

N2 - This study presents an analysis of seismic cutoff depth and heat flow field of the Fennoscandian Shield. Altogether 4190 earthquake events from years 2000-2015 in Finnish and Swedish national catalogues have been applied for this purpose. To model the heat flow field, 223 values from both countries and their neighbouring areas were used to find out if any correlation between the maximum earthquake focal depth (cutoff depth) and surface heat flow exists. Because heat flow and cutoff depth appear unrelated, it seems evident that regional variations of heat flow are caused by shallow lying variations (i.e., in upper crust) in heat production instead of deeper sources. Therefore one-dimensional layer models with temperature-dependent thermal conductivity are functional for the shield area.

AB - This study presents an analysis of seismic cutoff depth and heat flow field of the Fennoscandian Shield. Altogether 4190 earthquake events from years 2000-2015 in Finnish and Swedish national catalogues have been applied for this purpose. To model the heat flow field, 223 values from both countries and their neighbouring areas were used to find out if any correlation between the maximum earthquake focal depth (cutoff depth) and surface heat flow exists. Because heat flow and cutoff depth appear unrelated, it seems evident that regional variations of heat flow are caused by shallow lying variations (i.e., in upper crust) in heat production instead of deeper sources. Therefore one-dimensional layer models with temperature-dependent thermal conductivity are functional for the shield area.

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M3 - Conference contribution

SN - 978-952-10-5081-7

T3 - Report. S

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BT - Lithosphere 2016

A2 - Kukkonen ... [et al.], Ilmo

PB - Institute of Seismology, University of Helsinki

CY - Helsinki

ER -

Veikkolainen THK, Kukkonen IT, Tiira T. Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield. In Kukkonen ... [et al.] I, editor, Lithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts. Helsinki: Institute of Seismology, University of Helsinki. 2016. p. 149-152. (Report. S; 65).