Abstract
On November 4, 1975 in the evening, an eruption took place at Mt. Stromboli. On the following day lava flowed on the Sciara del Fuoco downward to the sea, accompanied by an intense explosive activity at the crater plane. Direct observations on the volcanic activity were carried out since November 6 while a seismic survey was made from Nov. 7 to 12. The total volume of the lava outpoured during this period of activity that lasted 21 days, was estimated to be about 104 m3. This paper reports the results of direct observations, and of the petrological, radioactive disequilibria and seismic activity studies performed for this eruption.
The eruption was preceded by an insignificant change of seismic activity, which was monitored by a seismic station located about 2 km East of the crater. A shallow seismicity was strietly related to crater explosions accompanying the eruptive phenomenon. Radioactive disequilibria showed a lack of disequilibrium between228Ra and232Th explainable in terms of a fast rising of magma in the conduit.
Chemical analyses of lava samples and deep seismic sounding data indicate a correspondence between the depth (10–15 km) at which crystallization pressure of phenocrysts occurs and a low velocity laver.
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References
Abbruzzese, D., 1935,Attivita dello Stromboli dal 1930 al 1934. Boll. Soc. Sism. It.,33, p. 118–125.
—————, 1937,Attività dello Stromboli dal 1934 al 1936. Bull. Volcanol.,2, p. 205–210.
—————, 1940,Attività dello Stromboli dal 1937 al giugno 1939. Bull. Volcanol.,7, p. 57–73.
Aki, K. andTsai, J. B., 1972,Mechanism of Love-wave Excitation by Explosive Source. J. Geophys. Res.,77, p. 1452–1475.
Barberi, F., Innocenti, F., Ferrara, G., Keller, J. andVillari, L., 1974,Evolution of Aeolian Arc Volcanism (Southern Tyrrhenian Sea). Earth Planet. Sci. Let.,21, p. 269–276.
Bonasia, V. andYokoyama, I., 1972,Rilevamento gravimetrico di Stromboli (Isole Eolie). Riv. It. Geofis.,21, p. 109–113.
Capaldi, G., Cortini, M., Gasparini, P. andPece, R., 1976a,Short-lived Radioactive Disequilibria in Freshly Erupted Volcanic Rocks and Their Implication for the Preeruptive History of a Magma. J. Geophys. Res.,81, p. 350–358.
————— andScarpa, R., 1976b,Correlation of Deep Earthquakes, Eruptive Activity at Stromboli Volcano and Age of the Radium Fractionation Event in the Magma. J. Volcan. Geoth. Res.,1, p. 381–385.
Casertano. L. andPinna, E., 1971.Indagini geomagnetiche nell’isola di Stromboli. Geofis. Meteor.,21, p. 76–82.
Cavallaro, C., 1955.Attività dello Stromboli dal 1940 al 1953. Boll. Accad. Gioenia,3, p. 525–532.
—————, 1957,Attività dello Stromboli dall’aprile 1954 al dicembre 1956. Boll. Accad. Gioenia,4, p. 102–118.
Clark, J. R., Appleman, D. E. andPapike, J. J., 1968,Bonding in Eight Ordered Clinopyroxenes Isostructural with Diopside. Contr. Mineral. Petrol.,20, p. 81–85.
—————, ————— and —————, 1969,Crystal-Chemical Characterization of Clinopyroxenes Based on Eight New Structure Refinements. Mineral. Soc. Am. Spec. Paper,2, p. 31–50.
Cucuzza Silvestri, S., 1955.La recente attività dello Stromboli (Febbraio-Marzo 1954). Boll. Accad. Gioenia,3, p. 26–32.
De Fiore, O., 1915,I fenomeni eruttivi avvemuti allo Stromboli dal 1909 al 1914 ed il loro meccanismo. Zeits. J. Vulcanol.,3, p. 225–246.
—————, 1923,I fenomeni eruttivi avvenuti allo Stromboli dal 1914 al 1916. Boll. Soc. Sism. It.,24, p. 9–66.
Del Pezzo, E., Guerra, I., Lo Bascio, A., Luongo, G., Nappi, G. andScarpa, R., 1974.Microtremors and Volcanic Explosions at Stromboli — Part 2. Bull. Voleanol.,38, p. 1023–1036.
Finetti, I., Morelli, G. andZarudski, E., 1970,Reflection Seismic Study of the Tyrrhenian Sea. Boll. Geofis. Teor. Appl.,12, p. 311–346.
Fodor, R. V., Keil, K. andBunch T. E., 1975,Contributions to the Mineral Chemistry of Hawaiian Rocks. IV. Pyroxenes in Rocks from Haleakala and West Mani Volcanoes, Mani, Hawaii. Contr. Mineral. Petrol.,50, p. 173–195.
Gasparini, P., Lirer, L. andLuongo, G., 1966,Caratteristiche petrochimiche e fisiche della lava emessa dallo Stromboli nell’aprile del 1967. Ann. Osserv. Vesuv.,8, p. 13–18.
Geyer, R. L. andMartner, S. T., 1969,SH Waves from Explosive Sources. Geophysics,34, p. 893–905.
Ghiara, M. R. andLirer, L., 1976–77, Mineralogy and Geochemistry of the « Low Potassium Series ». The Roccamonfina Series (Campania — South Italy). Bull Volcanol.,40–1, p. 1–18.
Girod, M., 1975,Données pétrologiques sur une shoshonite de Stromboli (îles Eoliennes). Pétrologie,1, p. 189–196.
Hattori, S., 1973.Love Waves Generated by Small Explosions. J. Phys. Earth,21, p. 61–76.
Iacobucci, F., Incoronato, A., Rapolla, A. andScarascia, S., 1977,Andamenti strutturali del basamento nelle isole di Vulcano, Lipari e Salina. Boll. Geof. Teor. e Applicata20, p. 49–61.
Imbò, G., 1930,Dati sismici relativi alla fase esplosiva dello Stromboli del Settembre 1930. Boll. Soc. Sism. It.,29, p. 197–205.
Ito, J. I. andFrondel, C., 1967,Synthetic Zirconium and Titanium Garnets. Am. Mineral.,52, p. 773–781.
Keller, J., 1974,Petrology of Some Volcanic Rock Series of the Aeolian Arc, Southern Tyrrhenian Sea: Calc-alkaline and Shoshonitic Associations. Contr. Mineral. Petrol.,46, p. 29–47.
Kisslinger, C., Mateker, E. J. jr. andMcEvilly, T. V., 1961,SH Motion from Explosions in Soil. J. Geophys. Res.,66, p. 3487–3496.
Klerkx, J., Deutsch, S., Hertogen, J., De Winter, J., Gijbels, R. andPichler, H., 1974,Comments on « Evolution of Aeolian arc volcanism (Southern Tyrrhenian Sea) » by F. Barberi, G. Ferrara, F. Innocenti, J. Keller and L. Villari. Earth Planet. Sci. Let.,23, p. 297–303.
Ku, I. L., 1965,An Evaluation of the234U/238U Method as a Tool for Dating Pelagic Sediments. J. Geophys. Res.,31, p. 175–214.
Kushiro, I., 1962,Clinopyroxene Solid Solutions. Part. 1. The CaAl2SiO6Component. Jap. J. Geol. Geogr.,23, p. 213–220.
Loddo, M. andMongelli, F., 1975,Heat Flow in Southern Italy and Surrounding Seas. Boll. Geofis. Teor. Appl.,18, p. 115–122.
Lo Bascio, A., Luongo, G. andNappi, G., 1973,Microtremors and Volcanic Explosions at Stromboli (Aeolian Islands). Bull. Volcanol.,37, p. 596–606.
Malladra, A., 1922,Etna, Vulcano, Stromboli nell’estate 1921. Giannini, Naples.
Mathez, E. A., 1973,Refinement of the Kudo Weill Plagioclase Thermometer and Its Application to Basaltic Rocks. Contr. Mineral. Petrol.,41, p. 61–72.
Maury, R. C. andBizouard, H., 1974,Clinopyroxènes des contacts acidies-basiques. Bull. Soc. Min. Crist.,97, p. 465–469.
Mc Birney, A. R., 1973,Factors Governing the Intensity of Explosive Andesitic Eruptions. Bull. Volcan.,37, p. 443–453.
Mercalli, G., 1881,Natura dell’eruzione dello Stromboli ed in generale dell’attività sismo-vulcanica nelle isole Eolie. Atti Soc. It. Sc. Nat.,24, p. 105–135.
—————, 1884,Notizie sullo stato attuale dei vulcani attivi italiani. Atti Soc. It. Sc. Nat.,27, p. 184–199.
—————, 1891.Osservazioni fatte allo Stromboli nel Settembre 1888 e nel Febbraio-Marzo 1889. Ann. Uff. Centr. Meteor. Geodinam.,10, p. 245–254.
Morelli, C., 1970,Physiography, Gravity and Magnetism of the Tyrrhenian Sea. Boll. Geofis. Teor. Appl.,12, p. 275–305.
————— andSchuette, K. G., 1975,Crustal Structure of Southern Italy. A Seismic Refraction Profile between Puglia-Calabria-Sicily. Boll. Geofis. Teor. Appl.,18, p. 183–210.
Nakamura, K., 1974,Preliminary Estimate of Global Volcanic Production Rate. In:Colp, J. L. andFuromoto, A. S. (eds.),The Utilization of Volcano Energy. Proc. of a Conference held at Hilo, Hawaii on February 4–8, 1974, p. 273–286.
Nappi, G., 1976,Recent Activity of Stromboli. Nature,261, p. 119–120.
Nishimura, S., 1970,Disequilibrium of the238U Series in Recent Volcanic Rocks. Earth Planet. Sci. Let.,8, p. 293–300.
Otha, J. andKubotera, A., 1968,An Example of Love Waves Generated by Small Explosions. Zisin,21, p. 109–120.
Oversby, V. M. andGast, P. N., 1968,Lead Isotope Composition and Uranium Decay Series Disequilibrium in Recent Volcanic Rocks. Earth Planet. Sci. Let.,5, p. 199–206.
Platania, G., 1908,I fenomeni eruttivi dello Stromboli nella primavera del 1907. Ann. Uff. Centr. Meteor. Geodinam.,30, p. 3–29.
-----, 1922,L’esplosione dello Stromboli del maggio 1919. Pub. Ist. Geol. Fis. Univ. Catania, p. 2–18.
Powell, M. andPowell, R., 1974,An Olivine-Clinopyroxene Geothermometer. Contr. Mineral. Petrol.,48, p. 249–263.
Preusse, P., 1926,Stromboli und Vulcano zu Beginn des 15. Jahrhundert. Zeits. f. Vulkanol.,10, p. 83–95.
Riccò, A., 1907,Sull’attività dello Stromboli dal 1891 in poi. Boll. Soc. Sism. It.,12, p. 183–205.
————— andMercalli, G., 1892,Sopra il periodo eruttivo dello Stromboli cominciato il 24 giugno 1891. Ann. Uff. Centr. Meteor. Geodinam.,11, p. 191–24.
Rinehart, J. S., 1974,Geysers. Eos Trans. AGU,56, p. 1052–1062.
Ringwood, E. A., 1955a.The Principles Governing Trace Element Distribution during Magmatic Crystallization. Part. I: The Influence of Electronegativity. Geoch. Cosm. Acta,7, p. 189–202.
—————, 1955b,The Principles Governing Trace Element Behaviour during Magmatic Crystallization. Part II: The Role of Complex Formation. Geoch. Cosm. Acta,7, p. 242–254.
Rittmann, A., 1931,Der Ausbruch des Stromboli am 11 September 1930. Zeits. f. Vulkanol.,14, p. ...
—————, 1962,On the Mechanism of the Persistent Volcanic Activity. Bull. Volcanol.,24, p. 301–318.
Sahama, T. andHitonen, K., 1958,Calciumbearing Magnesium-Iron Olivines. Amer. Mineral.,43, p. 362–871.
Somayajulu, B. L. K., Tatsumoto, M., Rosholt, J. N. andKnight, R. J., 1966,Disequilibrium of the238U Series in Basalt. Earth Planet. Sci. Let.,1, p. 387–391.
Segre, A., 1968,Notizie sulla morfologia sottomarina di Stromboli. Riv. Stromboli,11, p. 45–50.
Settee, M., 1971,A Statistical Analysis of the Activity of Stromboli, Italy, during Early September 1971 (abstract). Eos Trans. AGU,54, p. 509–510.
Smith, W. E. T., Whitham, K. andPiche, W. T., 1968,A Microearthquake Swarm in 1965 near Mould Bay, N. W. T., Canada. Seism. Soc. Am.,58, p. 1991–2011.
Thompson, R. N., 1974,Some High-pressure Pyroxenes. Mineral. Mag.,39, p. 768–787.
Ward, P. L. andGregersen, S., 1973,Comparison of Earthquake Locations Determined with Data from a Network of Stations and Small Tripartite Arrays on Kilauea Volcano, Hawaii. Bull. Seism. Soc. Am.,63, p. 679–711.
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Capaldi, G., Guerra, I., Lo Bascio, A. et al. Stromboli and its 1975 eruption. Bull Volcanol 41, 259–285 (1978). https://doi.org/10.1007/BF02597227
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DOI: https://doi.org/10.1007/BF02597227