Zobrazeno 1 - 6
of 6
pro vyhledávání: '"G. E. Sigvaldason"'
Publikováno v:
Geophysical Journal International. 119:277-296
SUMMARY Results of a 2-D, seismic undershooting experiment on the Katla central volcano in south Iceland are reported. Large localized traveltime anomalies (0.4 s) are observed on an array within the Katla caldera. The traveltimes are forward modelle
Publikováno v:
Hyperfine Interactions. 70:989-992
Mossbauer spectra of volcanic glasses from the 1875 Askja eruption reveals that the dacitemagma chamber was stratified in oxygen fugacity. The eruption was triggered by basaltic magma which was intruded into the base of the chamber. The observed oxid
Autor:
G. E. Sigvaldason
Publikováno v:
Bulletin Volcanologique. 29:589-604
(1961) into two groups on the basis of temperature conditions at depth in the geothermal areas. In the low temperature areas the maximum temperature at the base of water circulation is 150°C. Geothermal areas where temperature is higher than 150"C a
Autor:
G. E. Sigvaldason
Publikováno v:
American Journal of Science. 273:189-191
Autor:
S. Steinthórsson, G. E. Sigvaldason
Publikováno v:
Geodynamics of Iceland and the North Atlantic Area ISBN: 9789401022736
Ever since the universal occurrence and unique composition of “oceanic tholeiites” was defined by Engel et al. [1,2], the “differentiated” or “undepleted” nature of Icelandic basalts has become increasingly apparent [3–6]. This, in conj
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58b964d583e423243883f1419e56babd
https://doi.org/10.1007/978-94-010-2271-2_10
https://doi.org/10.1007/978-94-010-2271-2_10
Publikováno v:
Eos, Transactions American Geophysical Union. 62:1178
The past decade was an unusually eventful one for volcanology, with the 1973 eruption on Heimaey, Iceland, the 1976–1977 rumblings of the Soufriere Volcano on Guadeloupe, the huffing and puffing of Iceland's Krafla Volcano in 1975, the many eruptio