Jökull


Jökull - 01.01.2004, Page 123

Jökull - 01.01.2004, Page 123
evolution of the crust. J. Geoph. Res. 90, 10,011– 10,025. Steinthorsson, S., N. Oskarsson and G. E. Sigvaldason 1985. Origin of alkali basalts in Iceland: A plate tect- onic model. J. Geoph. Res. 90, 10,027–10,042. Sigvaldason, G. E., H. Tazieff and J. Sabroux 1983. Volcanic prediction in Iceland. In: Forecasting volcanic events. Elsevier Sci. Publ. Co., Amsterdam. Óskarsson, N., G. E. Sigvaldason and S. Steinthórsson 1982. A dynamic model of rift zone petrogenesis and the regional petrology of Iceland. J. Petrol. 23, 28–74. Condomines, M., P. Morand, C. J. Allégre and G. E. Sig- valdason 1981. 230Th–238U disequilibria in historical lavas from Iceland. Earth and Planetary Sci. Lett. 55, 393–406. Sigvaldason, G. E. 1982. Fluids in volcanic and geot- hermal systems. In: Rickard D. T. and F. E. Wickm- an (eds.) Chemistry and Geochemistry of Solutions at High Temperatures and Pressures. Proceedings of a Nobel symposium organised by the Royal Swedish Academy of Sciences. Physics and Chemistry of the Earth 13–14, 179–195. Oxford, Pergamon Press. Sigvaldason, G. E. 1978. Reply to editorial. J. Volcanol. Geotherm. Res. 4, I–III . Palmason, G. and G. E. Sigvaldason 1976. Iceland; oce- anic or continental? In: C. L. Drake (Ed.), Geo- dynamics; progress and prospects, Am. Geophys. Union, Washington D.C., USA. Sigvaldason, G. E. and N. Óskarsson 1976. Chlorine in basalts from Iceland. Geochim. Cosmochim. Acta 40, 777–789. Sigvaldason, G. E., S. Steinthorsson, N. Oskarsson and P. Imsland 1976. The simultaneous production of basalts, enriched and depleted in large lithophilic trace ions (LIL), within the same fissure swarms in Iceland. Bull. Soc. géol. France XVIII, 863–867. Sigvaldason, G. E. 1974. Basalts from the centre of the as- sumed Icelandic mantle plume. J. Petrol. 15, 497–524. Sigvaldason, G. E. 1974. Chemical composition of volcanic gases. In: Physical volcanology ed. L. Civetta et al. Developments in Solid Earth Geophysics, El- sevier, Amsterdam, 215–240. Sigvaldason, G. E. 1974. The petrology of Hekla and orig- in of silicic rocks in Iceland. Eruption of Hekla 1947– 1948, Soc. Sci. Islandica V, 1, 44 pp. Sigvaldason, G. E. and S. Steinthórsson 1974. Chemis- try of tholeiitic basalts from Iceland and their relati- on to the Kverkfjöll hot spot. In: Kristjansson (ed.), Geodynamics of Iceland and the North Atlantic Area, NATO ASI Series C: Mathematical and Physical Sciences, 11, 155–164. D. Reidel Publ. Company, Dordrecht-Holland. Sigvaldason, G. E., S. Steinthórsson, N. Oskarsson and P. Imsland 1974. Compositional variation in recent Icelandic tholeiites and the Kverkfjöll hot spot. Nature 251, 579–582. Muehlenbachs, K., A. T. Anderson and G. E. Sigvaldason 1974. Low-O18 basalts from Iceland. Geochim. Cos- mochim. Acta 38, 577–588. Sigvaldason G. E. 1973. Geochemical methods in geot- hermal exploitation; geothermal energy; review of research and development. (ed.) C H. Armstead, UNESCO, Earth Sciences 12, 49–59. Sigvaldason G. E. 1973. Volcanoes [book review]. Am. J. Sci. 273, 189–191. Thorarinsson, S. and G. E. Sigvaldason 1972. The Hekla eruption of 1970. Bull. Volcanol. 36, 269–288. Sigvaldason, G. E. 1969. Chemistry of basalts from the Icelandic rift zone. Contr. Mineral. Petrol. 20, 357– 370. Sigvaldason, G. E. 1969. Memorial of Tomas Tryggva- son, April 26, 1907 – September 30, 1965. American Mineralogist 54, 653–655. Sigvaldason, G. E. 1968. Structure and products of sub- aquatic volcanoes in Iceland. Contr. Min. Pet. 18, 1– 16. Sigvaldason, G. E. and G. Elisson 1968. Collection and analysis of volcanic gases at Surtsey, Iceland. Geochim. Cosmochim. Acta 32, 797–805. Sigvaldason, G. E. 1967. Chemistry of basalts from the Icelandic rift zone. In: S. Björnsson (ed.) Iceland and Mid-Ocean Ridges, Soc. Sci. Islandica 38, 50–52. Sigvaldason, G. E. 1966. Chemistry of thermal waters and gases in Iceland. Bull. Volcanol. 29, 589–604. Sigvaldason, G. E. 1965. The Grímsvötn thermal area, chemical analysis of jökulhlaup water. Jökull 15, 125– 128. Thurm, H., P. Bamkwitz, L. Hiersemann, G. E. Sig- valdason and W. Sponheuer 1965. Vorläufige Karte der rezenten vertikalen Krustenbewegungen in der Deutschen Demokratischen Republik. Petermanns Geographische Mitteilungen, 136–160. Sigvaldason, G. E. 1964. Some geochemical and hydrot- hermal aspects of the 1961 Askja eruption. Beitr. Mineral. Petrogr. 10, 263–274. JÖKULL No. 54, 2004 123
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