Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica).
We present the results of measurements of physical properties carried out on mafic lavas from the Mt Melbourne Volcanic Field, useful for interpretation of geophysical surveys designed to shed light on the structure of the crust. The thermal conductivity is comparable to that of glass and shows a cl...
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ftunivgenova:oai:iris.unige.it:11567/265839 2024-04-14T08:02:18+00:00 Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica). PASQUALE, VINCENZO VERDOYA, MASSIMO CHIOZZI, PAOLO ARMADILLO, EGIDIO Pasquale, Vincenzo Verdoya, Massimo Chiozzi, Paolo Armadillo, Egidio 2009 STAMPA https://hdl.handle.net/11567/265839 https://doi.org/10.4401/ag-4644 eng eng info:eu-repo/semantics/altIdentifier/wos/WOS:000267851400009 volume:52 firstpage:197 lastpage:207 numberofpages:11 journal:ANNALS OF GEOPHYSICS https://hdl.handle.net/11567/265839 doi:10.4401/ag-4644 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-68649086650 info:eu-repo/semantics/article 2009 ftunivgenova https://doi.org/10.4401/ag-4644 2024-03-21T02:29:06Z We present the results of measurements of physical properties carried out on mafic lavas from the Mt Melbourne Volcanic Field, useful for interpretation of geophysical surveys designed to shed light on the structure of the crust. The thermal conductivity is comparable to that of glass and shows a clear negative dependence on porosity. The volume heat capacity and the thermal diffusivity are less variable. The concentration of the thermally important natural radioactive isotopes was determined by gamma-ray spectrometry. Lavas denoted a rather low heat-production rate, and the largest concentration of heat-producing elements (potassium, uranium, thorium) was found in the trachyte samples. The magnetic susceptibility is more variable than the other physical properties and, among the several iron-titanium oxides, it appears primarily controlled by the ulvöspinel-magnetite solid solution series. Article in Journal/Newspaper Antarc* Antarctica Victoria Land Università degli Studi di Genova: CINECA IRIS Victoria Land Annals of Geophysics 52 2 |
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Open Polar |
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Università degli Studi di Genova: CINECA IRIS |
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ftunivgenova |
language |
English |
description |
We present the results of measurements of physical properties carried out on mafic lavas from the Mt Melbourne Volcanic Field, useful for interpretation of geophysical surveys designed to shed light on the structure of the crust. The thermal conductivity is comparable to that of glass and shows a clear negative dependence on porosity. The volume heat capacity and the thermal diffusivity are less variable. The concentration of the thermally important natural radioactive isotopes was determined by gamma-ray spectrometry. Lavas denoted a rather low heat-production rate, and the largest concentration of heat-producing elements (potassium, uranium, thorium) was found in the trachyte samples. The magnetic susceptibility is more variable than the other physical properties and, among the several iron-titanium oxides, it appears primarily controlled by the ulvöspinel-magnetite solid solution series. |
author2 |
Pasquale, Vincenzo Verdoya, Massimo Chiozzi, Paolo Armadillo, Egidio |
format |
Article in Journal/Newspaper |
author |
PASQUALE, VINCENZO VERDOYA, MASSIMO CHIOZZI, PAOLO ARMADILLO, EGIDIO |
spellingShingle |
PASQUALE, VINCENZO VERDOYA, MASSIMO CHIOZZI, PAOLO ARMADILLO, EGIDIO Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica). |
author_facet |
PASQUALE, VINCENZO VERDOYA, MASSIMO CHIOZZI, PAOLO ARMADILLO, EGIDIO |
author_sort |
PASQUALE, VINCENZO |
title |
Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica). |
title_short |
Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica). |
title_full |
Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica). |
title_fullStr |
Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica). |
title_full_unstemmed |
Thermal, radioactive and magnetic properties of the lavas of the Mt Melbourne Volcanic Field (Victoria Land, Antarctica). |
title_sort |
thermal, radioactive and magnetic properties of the lavas of the mt melbourne volcanic field (victoria land, antarctica). |
publishDate |
2009 |
url |
https://hdl.handle.net/11567/265839 https://doi.org/10.4401/ag-4644 |
geographic |
Victoria Land |
geographic_facet |
Victoria Land |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_relation |
info:eu-repo/semantics/altIdentifier/wos/WOS:000267851400009 volume:52 firstpage:197 lastpage:207 numberofpages:11 journal:ANNALS OF GEOPHYSICS https://hdl.handle.net/11567/265839 doi:10.4401/ag-4644 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-68649086650 |
op_doi |
https://doi.org/10.4401/ag-4644 |
container_title |
Annals of Geophysics |
container_volume |
52 |
container_issue |
2 |
_version_ |
1796313951262212096 |