Chronology and evolution of the northern Iceland Plateau |
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| Authors: | J CAMPSIE M H RASMUSSEN L C KOVACS F DITTMER J C BAILEY N O HANSEN J LAURSEN L JOHNSON |
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| Institution: | M. H. Rasmussen, F. Dittmer and J. Laursen, Ocean Study Group, Borgergade 34 2th, DK-1300 Copenhagen K, Denmark;J. C. Bailey, Ocean Study Group, Borgergade 34 2th, DK-1300 Copenhagen K, Denmark, or Institute of Petrology, østervold Gade 10, DK-13S0 Copenhagen, Denmark;N. O. Hansen, Institute of Petrology, østervold Gade 10, DK-1350 Copenhagen, Denmark;L. C. Kovacs, Naval Research Laboratory, Washington D.C. 20375, U.S.A.;L. Johnson, Office of Naval Research, Arlington, VA 22217-5000, U.S.A.; |
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| Abstract: | New aeromagnetic data, K-Ar age determinations of dredged marine igneous rocks, as well as other geophysical evidence have shed light on the chronology, nature and evolution of the northern Iceland Plateau. Correspondence between seismic refraction profiles taken on the Jan Mayen Ridge and westward through Jan Mayen Island, suppressed aeromagnetic anomalies, earthquake surface wave studies, and ages of dredged igneous rocks suggest these strata may form an extended region of thickened crust, possibly of Caledonian age, extending westward toward the Kolbeinsey Ridge and northwest to the south wall of the Jan Mayen Fracture Zone. |
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