Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield

Toni Henri Kristian Veikkolainen; Ilmo Tapio Kukkonen; T. Tiira

Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield

Toni Henri Kristian Veikkolainen, Ilmo Tapio Kukkonen, T. Tiira

Forskningsoutput: Kapitel i bok/rapport/konferenshandling › Konferensbidrag › Vetenskaplig

Sammanfattning

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.

Originalspråk	engelska
Titel på värdpublikation	Lithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts
Redaktörer	Ilmo Kukkonen ... [et al.]
Antal sidor	4
Utgivningsort	Helsinki
Förlag	Institute of Seismology, University of Helsinki
Utgivningsdatum	2016
Sidor	149-152
ISBN (tryckt)	978-952-10-5081-7
ISBN (elektroniskt)	978-952-10-9282-5
Status	Publicerad - 2016
MoE-publikationstyp	B3 Ej refererad artikel i konferenshandlingar
Evenemang	Litosphere Symposium - Espoo, Finland Varaktighet: 9 nov. 2016 → 11 nov. 2016 Konferensnummer: 9

Publikationsserier

Namn	Report. S
Förlag	University of Helsinki, Institute of Seismology
Nummer	65
ISSN (tryckt)	0357-3060

Vetenskapsgrenar

1171 Geovetenskaper

Åtkomst av dokument

http://www.seismo.helsinki.fi/pdf/Lito2016.pdf

FINES-PS17 Array
Kortström, J. (Chef), Lindblom, P. (Operatör) & Keskinen, J. (Operatör)
Seismologiska institutet
Utrustning/facilitet: Utrustning
Institute of Seismology's Network of Seismic Stations
Tiira, T. (Chef), Keskinen, J. (Operatör), Kortström, J. (Operatör), Lindblom, P. (Operatör), Seipäjärvi, P. J. (Operatör) & Juntunen, A. K. (Operatör)
Seismologiska institutet
Utrustning/facilitet: Utrustning
Local Network in Kuusamo
Tiira, T. (Chef) & Lindblom, P. (Operatör)
Seismologiska institutet
Utrustning/facilitet: Utrustning

Citera det här

Veikkolainen, T. H. K., Kukkonen, I. T., & Tiira, T. (2016). Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield. I I. Kukkonen ... [et al.] (Red.), Lithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts (s. 149-152). (Report. S; Nr. 65). Institute of Seismology, University of Helsinki. http://www.seismo.helsinki.fi/pdf/Lito2016.pdf

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. redaktör / Ilmo Kukkonen ... [et al.]. Helsinki : Institute of Seismology, University of Helsinki, 2016. s. 149-152 (Report. S; 65).

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title = "Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield",

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",

author = "Veikkolainen, {Toni Henri Kristian} and Kukkonen, {Ilmo Tapio} and T. Tiira",

year = "2016",

language = "English",

isbn = "978-952-10-5081-7",

series = "Report. S",

publisher = "Institute of Seismology, University of Helsinki",

number = "65",

pages = "149--152",

editor = "{Kukkonen ... [et al.]}, Ilmo",

booktitle = "Lithosphere 2016",

address = "Finland",

note = "Litosphere Symposium ; Conference date: 09-11-2016 Through 11-11-2016",

}

Veikkolainen, THK , Kukkonen, IT & Tiira, T 2016, Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield. i I Kukkonen ... [et al.] (red.), Lithosphere 2016 : Ninth Symposium on the Structure, Composition and Evolution of the Lithosphere in Fennoscandia Programme and Extended Abstracts. Report. S, nr. 65, Institute of Seismology, University of Helsinki, Helsinki, s. 149-152, Litosphere Symposium, Espoo, Finland, 09/11/2016. <http://www.seismo.helsinki.fi/pdf/Lito2016.pdf>

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. red. / Ilmo Kukkonen ... [et al.]. Helsinki: Institute of Seismology, University of Helsinki, 2016. s. 149-152 (Report. S; Nr. 65).

Forskningsoutput: Kapitel i bok/rapport/konferenshandling › Konferensbidrag › Vetenskaplig

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 - Conference code: 9

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.

KW - 1171 Geosciences

M3 - Conference contribution

SN - 978-952-10-5081-7

T3 - Report. S

SP - 149

EP - 152

BT - Lithosphere 2016

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

PB - Institute of Seismology, University of Helsinki

CY - Helsinki

T2 - Litosphere Symposium

Y2 - 9 November 2016 through 11 November 2016

ER -

Veikkolainen THK , Kukkonen IT , Tiira T. Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield. I Kukkonen ... [et al.] I, redaktör, 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. s. 149-152. (Report. S; 65).

Applying seismic cutoff depth in thermal modelling of the Fennoscandian Shield

Sammanfattning

Publikationsserier

Vetenskapsgrenar

Åtkomst av dokument

Utrustning

FINES-PS17 Array

Institute of Seismology's Network of Seismic Stations

Local Network in Kuusamo

Citera det här