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Iceland and the North Atlantic: A review

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Abstract

Iceland is a special volcanic island in an anomalous ocean basin. A review of the unusual features shows that among others topography and gravity are broadly positive, spreading has been and still is complex, seismicity is slightly diffuse and the chemistry of the basalts is different from that at normal ridges. In summary we observe a tendency of lithospheric dispersal and spreading in the North Atlantic and its surroundings. These observations together with what is known about Icelandic crust, heat flow, tectonic history, etc., point to a hot mantle upwelling beneath Iceland. The shape of the upwelling currents is not known. Although at present much speculation is possible, the authors prefers to think of a broad rising region uplifting the lithospheric plates such that they tend to slide away from Iceland more forcefully than is the case from normal spreading ridges.

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References

  • Anderson, R.N., McKenzie, D. P, Sclater, J. G.: Gravity, bathymmetry, and convection in the earth. Earth Planet. Sci. Lett. 18, 391–407 (1973)

    Google Scholar 

  • Angenheister, G., Petersen, N., Schönharting, G.: Zur Interpretation der Anomalien des Erdmagnetmagnetfeldes in Island. Fortschr. Mineral. 54, 54–92 (1977)

    Google Scholar 

  • Aric, K.: Über die truktur des Reykjanes-Rückens nach den Ergebnissen reflexionsseismischer Messungen. Z. Geophys. 36, 229–232 (1970)

    Google Scholar 

  • Aronson, J.L., Saemundsson, K.: Relatively old basalts from structurally high areas in central Iceland. Earth Planet. Sci. Lett. 28, 83- (1975)

    Google Scholar 

  • Baldridge, W.S., McGretchin, T.R., Frey, F.A., Jarosewich, E.: Magnetic evolution of Hekla, Iceland. Contr. Mineral. Petr. 42, 245–258 (1973)

    Google Scholar 

  • Beblo, M., Björnsson, A.: Magnetotelluric investigation of the lower crust and upper mantle beneath Iceland. J. Geophys. 45, 1–16 (1978)

    Google Scholar 

  • Beloussov, V.V.: Against the hypothesis of ocean-floor spreading. Tectonophysics 9, 489–511 (1970)

    Google Scholar 

  • Björnsson, A., Saemundsson, K., Einarsson, P., Tryggvason, E., Grönvold, K.: Current rifting episode in North Iceland. Nature 266, 318–323 (1977)

    Google Scholar 

  • Björnsson, A., Johnson, G., Sigurdsson, S., Thorbergsson, G., Tryggvason, E.: Rifting of the plate boundary in North Iceland 1975–1978. (in press) J. Geophys. Res. (1979)

  • Björnsson, S., ed.: Iceland and Mid-Ocean Ridges. reykjavik Leiftur 1967.

  • Bodvarsson, G.: Terrestrial heat balance in Iceland. Timarit Verkfraidingafelags Isl. 39, 69–76 (1954)

    Google Scholar 

  • Bottinga, Y., Allegre, C.: Geophysical, petrological and geochemical models of the oceanic lithosphere. Tectonophysics 32, 9–59 (1976)

    Google Scholar 

  • Bunch, A.W.H.: The Reykjanes Ridges — a seismic experiment to measure the effect of crustal aging (abstract). Eur. Geophys. Soc., Strasbourg, August 1978.

  • Fleischer, U., Holzkamm, F., Vollbrecht, K., Voppel, D.: Die Struktur des Island-Färöer-Rückens aus geophysikalischen Messungen. Deut. Hydrogr. Z. 27, 97–113 (1974)

    Google Scholar 

  • Forsyth, D.W.: The early structural evolution and anisotropy of the oceanic upper mantle. Geophys. J. R. astr. Soc. 43, 103–162 (1975)

    Google Scholar 

  • Francis, T.J.G.: Upper mantle structure along the axis of the Mid-Atlantic Ridge near iceland. Geophys. J. R. astr. Soc. 17, 507–520 (1969)

    Google Scholar 

  • Garde, S.S.: Zur geologischen Entwicklung des Jan Mayen Rückens nach geophysikalischen Daten. Diss. Clausthal, 1978.

  • Gerke, K., Möller, D., Ritter, B.: Geodätische Lagemessungen zur Bestimmung horizontaler Krustenbewegungen in Nordost-Island. Wiss. Arb. Geodät. Photogramm. Kartogr., T.U. Hannover, Nr. 83, 23–33 (1978)

    Google Scholar 

  • Girardin, N., Poupinet, G.: Teleseismic S travel-time delay for Mid-Atlantic Ridge eartquakes. Phys. Earth Planet. Inter. 9, 306–313 (1974)

    Google Scholar 

  • Girardin, N., Jacoby, W.R.: Rayleigh wave dispersion along Reykjanes Ridge. Tectonophysic, (in press 1978)

  • Haigh, B.I.R.: North Atlantic oceanic topography and lateral variations in the upper mantle. Geophys. J. R. astr. Soc. 33, 405–420 (1973)

    Google Scholar 

  • Haimson, B.C., Voight, B.: Crustal stress in iceland. Pure Appl. Geophys., 115, 153–190 (1977)

    Google Scholar 

  • Hast, N.: The state of stress in the upper part of the earth's crust. Tectonophysics 8, 169–211 (1969)

    Google Scholar 

  • Hinz, K., Schlüter, H.K.: Der Nordatlantik — Ergebnisse geophysikalischer Untersuchung der Bundesanstalt für Geowissenschaften und Rohstoffe an nordatlantischen Kontinentalränden. Erdöl Erdgas Z. 94, 271–280 (1978)

    Google Scholar 

  • Hermance, J.F.: An electrical model for the sub-Iceland-crust. Geophysics, 38, 3–13 (1973)

    Google Scholar 

  • Jacoby, W.R., Girardin, N.: The evolution of the lithosphere at Reykjanes Ridge (in prep 1979)

  • Jakobsson, S.P.: Chemistry and distribution pattern of Recent basaltic rocks in Iceland. Lithos 5, 365–386 (1972)

    Google Scholar 

  • Klein, F.W., Einarsson, P., Wyss, M.: The Reykjanes peninsula, Iceland, earthquake swarm of September 1972 and its tectonic significance. J. Geophys. Res. 82, 865–888 (1977)

    Google Scholar 

  • Kristjansson, L.: Paleomagnetism and magnetic survey in Iceland. Earth Planet. Sci. Lett. 8, 101–108 (1970)

    Google Scholar 

  • Kristjansson, L.: On the thickness of the magnetic crustal layer in southwestern Iceland. Earth Planet. Sci. Lett. 16, 237–244 (1972)

    Google Scholar 

  • Kristjansson, L. ed.: Geodynamics of Iceland and the North Atlantic Area. Dortrecht Reidel 1974.

  • Kristjansson, L.: Central volcanoes on the western Icelandic shelf. Marine Geophys. Res. 2, 285–289 (1976 a)

    Google Scholar 

  • Kristjansson, L.: A marine magnetic survey off southern Iceland. Marine Geophys. Res. 2, 315–326 (1976 b)

    Google Scholar 

  • Kristjansson, L.: Marine magnetic surveys off the west coast of Iceland. Soc. Sci. Isl., Greinar 5, 23–44 (1976 c)

    Google Scholar 

  • Laughton, A.S., Searle, R.C.: Tectonic processes on slow spreading ridges. 2nd M. Ewing Symp., Am. Geophys. Un. (in press 1978)

  • Laughton, A.S., Searle, R.C., Roberts, D.G.: The Reykjanes Ridge crest and the transition between its rifted and non-rifted regions. Tectonophysics 55, 173–177 (1979)

    Google Scholar 

  • Long, R.E., Mitchell, M.G.: Teleseismic P-wave delay time in Iceland. Geophys. J. R. astr. Soc. 20, 41–48 (1970)

    Google Scholar 

  • McDougal, I., Watkins, N.D., Walker, G.P.L., Kristjansson, L.: Potassiumargon and paleomagnetic analysis of Icelandic lava flows: limits on the age of anomaly 5. J. Geophys. Res. 81, 1505–1512 (1976)

    Google Scholar 

  • Meyer, O., Voppel, D., Fleischer, U., Closs, H., Gerke, K.: Results of bathymetric, magnetic, and gravimetric measurements between Iceland and 70°N. Deut. Hydrogr. Z. 25, 193–201 (1972)

    Google Scholar 

  • Molnar, P., Atwater, T.: Relative motion of hot spots in the mantle. Nature 247, 288–291 (1973)

    Google Scholar 

  • Morgan, W.J.: Convection plumes in the lower mantle. Nature 230, 42–43 (1971)

    Google Scholar 

  • Nilsen, T.H.: Lower Tertiary laterite on the Iceland-Faeroe Ridge and the Thulean land bridge. Nature 274, 786–788 (1978)

    Google Scholar 

  • Pálmason, G.: Crustal structure of Iceland from explosion seismology. Rit 40, Reykjavik, Soc. Sci. Isl. 1971.

  • Pálmason, G.: Kinematics and heat flow in a volcanic rift zone, with application to Iceland. Geophys. J.R. astr. Soc. 33, 451–481 (1973)

    Google Scholar 

  • Pálmason, G., Saemundsson, K.: Iceland in relation to the Mid-Atlantic Ridge. Ann. Rev. Earth Planet. Sci. 2, 25–50 (1974)

    Google Scholar 

  • Piper, J.D.A.: Ground magnetic studies of crustal growth in Iceland. Earth Planet. Sci. Lett. 12, 199–207 (1971)

    Google Scholar 

  • Piper, J.D.A.: Interpretation of some magnetic anomalies over Iceland. Tectonophysics 16, 163–187 (1973)

    Google Scholar 

  • Poupinet, G.: Heterogeneites du manteau terrestre deduites de la propagation des ondes de volume — implication geodynamique. These d'etat. Univ. Grenoble 1977.

  • RRISP Working Group: First results from the Reykjanes Ridge Iceland Seismic Project 1977. Nature 279, 56–60 (1979)

    Google Scholar 

  • Runcorn, S.K.: On the not moving lithospheric plates. Tectonophysics 21, 197–202 (1974)

    Google Scholar 

  • Rutten, K.: Two-dimensionality of magnetic anomalies over Iceland and Reykjanes Ridge. Marine Geophys. Res. 2, 243–263 (1975)

    Google Scholar 

  • Saemundsson, K.: Evolution of the axial rifting zone in northern Iceland and the Tjörnes fracture zone. Geol. Soc. Am. Bull. 85, 495–504 (1974)

    Google Scholar 

  • Saemundsson, K.: Fissure swarms and central volcanoes of the neovolcanic zones ofIIceland. Geol. J. Spec. Iss. 10, 415–432 (1978)

    Google Scholar 

  • Schäfer, K.: Horizontal and vertical crustal movements in Iceland. Tectonophysics 29, 223–231 (1975)

    Google Scholar 

  • Schilling, J.G.: Iceland mantle plume: geochemical study of Reykjanes Ridge. Nature 242, 565–571 (1973)

    Google Scholar 

  • Schilling, J.G., Noe-Nygaad, A.: Faeroe-Iceland plume: rare earth evidence. Earth Planet. Sci. Lett. 24, 1–14 (1974)

    Google Scholar 

  • Schilling, J.G., Sirgurdsson, H., Kingsley, R.H.: Skagi and western neovolcanic zones in Iceland: 2. Geochemical variations. J. Geophys. Res. 83, 3983–4002 (1978)

    Google Scholar 

  • Sclater, J.G., Lawver, L.A., Parsons, B.: Comparison of long-wavelength residual elevation and free air gravity anomalies in the North Atlantic and possible implications for the thickness of the lithospheric plate. J. Geophys. Res. 80, 1031–1052 (1975)

    Google Scholar 

  • Serson, P.H., Hannaford, W., Haines, G.V.: Magnetic anomalies over Iceland. Science 162, 355–357 (1968)

    Google Scholar 

  • Sigurdsson, H., Schilling, J.G., Meyer, P.S.: Skagi and Langjökull volcanic zones in Iceland: 1. Petrology and structure. J. Geophys. Res. 83, 3971–3982 (1978)

    Google Scholar 

  • Sigurgeirsson, T.: Aeromagnetic survey of SW Iceland. Sci. Isl. 2, 13–20 (1970)

    Google Scholar 

  • Srivastava, S.R.: Evolution of the Labrador Sea and its bearing on the early evolution of the North Atlantic. Geophys. J.R. astr. Soc. 52, 313–357 (1978)

    Google Scholar 

  • Stefansson, R.: Methods of focal mefchanism studies with application on on two Atlantic earthquakes. Tectonophysics 3, 210–243 (1966)

    Google Scholar 

  • Stefansson, R.: Some problems of seismological studies on the Mid-Atlantic Ridge. In: Iceland and Mid-Ocean Ridges, Rit 38, pp. 80–89, Björnsson, S., ed., Reykjavik, Soc. Sci. Isl. 1967.

  • Sykes, L.: Mechanism of earthquakes and nature of faulting on the midocean ridges. J. Geophys. Res. 72, 2131–2153 (1967)

    Google Scholar 

  • Talwani, M., Windish, C.D., Langseth, M.G.: Reykjanes Ridge crest: a detailed geophysical study. J. Geophys. Res. 76, 473–517 (1971)

    Google Scholar 

  • Talwani, M., Eldholm, O.: Evolution of the Norweigian-Greenland sea. Geol. Soc. Am. Bull. 88, 969–999 (1977)

    Google Scholar 

  • Thorarinsson, S.: The median zone of Iceland. In: The World Rift System, UMP Symp., Ottawa. Geol. Surv. Canada, Pap. 66–14, 187–211 (1965)

  • Torge, W., Drews, H.: Gravity variations with time in northern Iceland 1965–1975. J. Geophys. 43 771–790 (1977)

    Google Scholar 

  • Tryggvason, E.: Arrival times of P-waves and upper mantle structure. Bull. Seis. Soc. Am. 54, 727–736 (1964)

    Google Scholar 

  • Vogt, P.R., Avery, O.E.: Detailed magnetic surveys in the northeast Atlantic and Labrador Sea. J. Geophys. Res. 79, 363–389 (1974)

    Google Scholar 

  • Ward, P.L., Palmason, G., Drake, C.: Micro-earthquake survey and the Mid-Atlantic Ridge in Iceland. J. Geophys. Res. 74, 665–684 (1969)

    Google Scholar 

  • Ward, P.L.: New interpretation of the geology of Iceland. Geo. Soc. Am. Bull. 82, 2991–3012 (1971)

    Google Scholar 

  • Ward, P.L., Björnsson, S.: Microearthuuakes, swarms and geothermal areas of Iceland. J. Geophys. Res. 76, 3953–3982 (1971)

    Google Scholar 

  • Wilson, J.T.: Mantle plumes and plate motion. Tectonophysics 19, 149–164 (1973)

    Google Scholar 

  • Zverev, S.M., Kosminskaya, I.P., Krasil'schikova, G.A., Mukhota, G.G.: Glubinue stroenie Islandii i Islandsko-Farensko-Shetlandsko regiona po rezultatan seismicheskikh issledovaniy. (Deep structure of the Iceland-Faeroe-Shetland region on the basis of seismic results), Bull. Moscow Soc. Nat. Res., Geol. Sec. 3, 99–115 (1975)

    Google Scholar 

  • Zverev, S.M., Boldyrev, S.A., Bourmin, V.Yu., Mironova, V.I.: Weak earthquake in the northern part of the rift zone of Iceland. J. Geophys. 44, 283–296 (1978)

    Google Scholar 

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  1. Institut für Meteorologie und Geophysik, Universität Frankfurt, Feldbergstr. 47, D-6000, Frankfurt, FR Germany

    Jacoby W. R. Dr. (Frankfurt, Professor of Geophysics)

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Jacoby, W.R. Iceland and the North Atlantic: A review. GeoJournal 3, 253–262 (1979). https://doi.org/10.1007/BF00177631

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