Abstract
MAGNETIC and petrological studies have been made on nine dredge samples taken in the course of detailed geological and geophysical investigations of a small area near the crest of the mid-Atlantic Ridge, 22° 30′ N., 45° 30′ W. (refs. 1 and 2). Samples were taken in 1964–65 on cruises Chain-44 and Washington 1965–1 of the Woods Hole Oceanographic Institution and the Scripps Institution of Oceanography. The magnetic properties of the samples were examined in order to help in the interpretation of observed magnetic anomalies in the area. The remanent magnetizations of twenty cores (2.5 cm by about 3 cm) taken from the nine samples were measured on an astatic magnetometer at the Scripps Institution. Susceptibilities were measured on a susceptibility bridge. The samples were not demagnetized of any isothermal or viscous remanent magnetization components which may have been present. Because all dredge samples were unoriented, the cores were also unoriented. Care was taken to avoid coring outer visibly weathered zones in some samples.
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References
van Andel, Tj. H., Bowen, V. T., Sach, P. L., and Siever, R., Science, 148, 1214 (1965).
van Andel, Tj. H., and Bowin, C. O., J. Geophys. Res. (in the press).
Melson, W. G., and van Andel, Tj. H., Marine Geol., 4, 165 (1966).
Melson, W. G., van Andel, Tj. H., and Thompson, J. (in the press).
Nagata, T., Rock Magnetism (Maruzen, Tokyo, 1961).
Slichter, L. B., in Handbook of Physical Constants (edit. by Birch, F., Schairer, J. F., and Spicer, H. C.), chapt. 20 (Geol. Soc. Amer., Spec. Paper, No. 36, 293, 1942).
Matthews, D. H., Nature, 190, 158 (1961).
Cox, A., and Doell, R. R., J. Geophys. Res., 67, 3997 (1962).
Bullard, E. C., and Mason, R. G., in The Sea (edit. by Hill, M. N.), 3, 175 (Interscience, New York, 1963).
Ade-Hall, J. M., Geophys. J. Roy. Astro. Soc., 9, 85 (1965).
Vogt, P. R., and Osteno, N. A., J. Geophys. Res., 71, 4389 (1966).
Opdyke, N. D., and Hekinian, R., J. Geophys. Res., 71, 4389 (1966).
Harrison, C. G. A., Richards, M. L., and Vacquier, V., in The International Dictionary of Geophysics (Pergamon Press, London, in the press).
Balsley, J. R., and Buddington, A. F., Econ. Geol., 53, 777 (1958).
Vine, F. J., Science, 154, 1405 (1966).
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LUYENDYK, B., MELSON, W. Magnetic Properties and Petrology of Rocks near the Crest of the Mid-Atlantic Ridge. Nature 215, 147–149 (1967). https://doi.org/10.1038/215147a0
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DOI: https://doi.org/10.1038/215147a0
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