Abstract
Analytical data including major elements, the Rare Earths, Ni, Cu, Zn, Rb, and Sr are presented for twenty-three spilites from the Mid-Atlantic Ridge, the Hercynian part of the Variscan geosyncline in Germany, and several localities in Switzerland. Low grade metamorphism (up to approximately 400° C) and spilitization of basaltic rocks apparently do not alter the original Rare Earth element (REE) distributions. This fact permits comparison of the spilites and unaltered tholeiitic basalts from the Mid-Atlantic Ridge. The relative REE distributions thus appear suitable for delineating the original basalt types of spilites formed by metamorphism.
The spilites from the Hercynian part of the Variscan geosyncline have a REE distribution pattern which is characteristic of continental tholeiites. It is thus probable that during the formation of this geosyncline the principal magma extruded was of tholeiitic composition and that these rocks were later converted to spilites by metamorphism.
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Amstutz, G. C.: Spilites and spilitic rooks. In: Basalts. The Poldervaart treatise on rocks of basaltic composition, ed. by H. H. Hess and the late Arie Poldervaart, vol. 2, p. 737–753. New York-London-Sydney: Interscience 1968
Andel, Tj. H. van, Bowen, V. T., Sachs, P. L., Siever, R.: Morphology and sediments of a portion of the Mid-Atlantic Ridge. Science 148, 1214–1216 (1965)
Balashov, Yu. A., Kremenetsky, A. A., Shvets, V. M.: Geochimičeskie kriterii prirody dokembrijskich amfibolitov (Geochemical criteria of the nature of Precambrian amphibolites). Geochimija, 1358–1371 (1972) [in Russian]
Bandurkin, G. A.: Behaviour of the rare earths in fluorine-bearing media. Geochemistry (USSR), English Transl., p. 159–167 (1961)
Bearth, P.: Die Diabasgänge der Silvretta. Schweiz. Mineral. Petrog. Mitt. 12, 147–179 (1932)
Bearth, P.: Die Ganggesteine des Malcantone. Schweiz. Mineral. Petrog. Mitt. 12, 180–203 (1932)
Bertrand, J.: Etude pétrographique des ophiolites et des granites du flysch des Gêts (HauteSavoie, France). Archives des Sciences, éditées par la Société de Physique et d'Histoire naturelle de Genêve, vol. 23, fasc. 2, p. 279–542 (1970)
Cann, J. R.: Spilites from the Carlsberg Ridge, Indian ocean. J. Petrol. 10, 1–19 (1969)
Cann, J. R.: Major element variations in ocean-floor basalts. Phil. Trans. Roy. Soc. London Ser. A 268, 495–505 (1971)
Cann, J. R., Simkin, T.: A bibliography of ocean-floor rocks. Phil. Trans. Roy. Soc. London, Ser. A 268, 737–743 (1971)
Early, T. O.: Rare earths in eclogites from the Roberts Victor Kimberlite, South Africa. Unpublished Dissertation, Washington University, St. Louis, Missouri (1971)
Eckhardt, F. J.: Die Spilitisierung basischer Vulkanite. Neues Jahrb. Mineral., Monatsh. 1971, 45–57
Engel, A. E. J., Engel, C. G., Havens, R. G.: Chemical characteristics of oceanic basalts and the upper mantle. Geol. Soc. Am. Bull. 76, 719–734 (1965)
Frey, F. A., Haskin, L. A.: Rare earths in oceanic basalts. J. Geophys. Res. 69, 775–780 (1964)
Frey, F. A., Haskin, M. A., Poetz, J. A., Haskin, L. A.: Rare earth abundances in some basic rocks. J. Geophys. Res. 73, 6085–6098 (1968)
Gill, J. B.: Geochemistry of Viti Levu, Fiji, and its evolution as an island arc. Contr. Mineral. and Petrol. 27, 179–203 (1970)
Graham, A. L., Nicholls, G. D.: Mass spectrographic determinations of lanthanide element contents in basalts. Geochim. Cosmochim. Acta 33, 555–568 (1969)
Hart, R.: Chemical exchange between sea water and deep ocean basalts. Earth and Planetary Sci. Letters 9, 269–279 (1970)
Hart, S. R.: K, Rb, Cs, Sr and Ba contents and Sr isotope ratios of ocean floor basalts. Phil. Trans. Roy. Soc. London, Ser. A 268, 573–587 (1971)
Haskin, L. A., Frey, F. A., Schmitt, R. A., Smith, R. H.: Meteoritic, solar and terrestrial rare earth distributions. Physics and chemistry of the earth, vol. 7, p. 167–321. Oxford and New York: Pergamon Press 1966
Hekinian, R.: Petrological and geochemical study of spilites and associated rocks from St. John, U.S. Virgin Islands. Geol. Soc. Am. Bull. 82, 659–682 (1971)
Hentschel, H., in Lippert, H. J., Hentschel, H., Rabien, A.: Erläuterungen zur Geologischen Karte von Hessen. 1∶25000, Blatt Nr. 5215 Dillenburg, 2. Aufl., S. 314–373 (1970)
Herrmann, A. G.: Die Verteilung der Lanthaniden in basaltischen Gesteinen. Contr. Mineral. and Petrol. 17, 275–314 (1968)
Herrmann, A. G.: Yttrium and Lanthanides. In: Handbook of geochemistry, K. H. Wedepohl, ed., vol. II/2, 39, 57–71 B-O. Berlin-Heidelberg-New York: Springer 1970
Herrmann, A. G., Wedepohl, K. H.: Untersuchungen an spilitischen Gesteinen der variskischen Geosynkline in Nordwestdeutschland. Contr. Mineral. and Petrol. 29, 255–274 (1970)
Hughes, C. J.: Spilites, Keratophyres, and the igneous spectrum. Geol. Mag. 109, 513–527 (1973)
Jakeš, P., Gill, J.: Rare earth elements and the island arc tholeiitic series. Earth and Planetary Sci. Letters 9, 17–28 (1970)
Kay, R., Hubbard, N. J., Gast, P. W.: Chemical characteristics and origin of oceanic ridge volcanic rocks. J. Geophys. Res. 75, 1585–1613 (1970)
Kay, R., Senechal, R.: Rare earths in mafic rocks of the Troodos ophiolite, Cyprus. 53. Annual Meeting 1972 (AGU). EOS, Transactions, American Geophysical Union 53, 536 (1972)
Loeschke, J.: Zur Petrogenese paläozoischer Spilite aus den Ostalpen. Neues Jahrb. Mineral., Abhandl. 119, 20–56 (1973)
Martini, J., Vuagnat, M.: Metamorphose niedrigst temperierten Grades in den Westalpen. Fortschr. Mineral. 47, 52–64 (1970)
Matthews, D. H.: Altered basalts from Swallow Bank, an abyssal hill in the NE Atlantic, and from a nearby seamount. Phil. Trans. Roy. Soc. London, Ser. A 268, 551–571 (1971)
McDonald, G. A., Katsura, T.: Chemical composition of Hawaiian lavas. J. Petrol. 5, 82–133 (1964)
Meisl, St.: Petrologische Studien im Grenzbereich Diagenese-Metamorphose. Abhandl. Hess. Landesamtes Bodenforsch. 57, 1–93 (1970)
Melson, W. G., Andel, T. H. van: Metamorphism in the Mid-Atlantic Ridge, 22° N latitude. Marine Geol. 4, 165–186 (1966)
Melson, W. G., Thompson, G., Andel, T. H. van: Volcanism and metamorphism in the Mid-Atlantic Ridge, 22° N latitude. J. Geophys. Res. 73, 5925–5941 (1968)
Mineyev, D. A.: Geochemical differentiation of the rare earths. Geochemistry (USSR), English Transl., p. 1129–1149 (1963)
Miyashiro, A., Shido, F., Ewing, M.: Metamorphism in the Mid-Atlantic Ridge near 24° and 30° N. Phil. Trans. Roy. Soc. London, Ser. A 268, 589–603 (1971)
Montigny, R. J., Bougault, H., Allègre, C. J.: Transition elements, REE, K, Rb, Sr and Ba concentrations in Alpine ophiolites. 53. Annual Meeting 1972 (AGU). EOS, Transactions, American Geophysical Union 53, 536 (1972)
Nicholls, G. D., Islam, M. R.: Geochemical investigations of basalts and associated rocks from the ocean floor and their implications. Phil. Trans. Roy. Soc. London, Ser. A 268, 469–486 (1971)
Nitsch, K.-H.: Stabilitätsbeziehungen von Prehnit- und Pumpellyit-haltigen Paragenesen. Contr. Mineral. and Petrol. 30, 240–260 (1971)
Philpotts, A., Schnetzler, C. C., Hart, S. R.: Submarine basalts: Some K, Rb, Sr, Ba, rareearth, H2O and CO2 data bearing on their alteration, modification by plagioclase, and possible source materials. Earth and Planetary Sci. Letters 7, 293–299 (1969)
Potts, M. J., Early, T. O., Herrmann, A. G.: Determination of rare earth element distribution patterns in rocks and minerals by neutron-activation analysis. Z. Anal. Chem. 263, 97–100 (1973)
Schilling, J.-G.: Sea-floor evolution: rare-earth evidence. Phil. Trans. Roy. Soc. London, Ser. A 268, 663–706 (1971)
Schilling, J.-G., Winchester, J. W.: Rare earth contribution to the origin of Hawaiian lavas. Contr. Mineral. and Petrol. 23, 27–37 (1969)
Schmucker, U.: Geophysical aspects of structure and composition of the earth and the earth crust. In: Handbook of geochemistry, K. H. Wedepohl, ed., vol. I, pp. 134–266. Berlin-Heidelberg-New York: Springer 1969
Sharfman, V. S.: Average chemical properties of spilites. Dokl. Akad. Nauk S.S.S.R., Earth Sci. Sect. 180, 164–165 (1969)
Staub, R.: Petrographische Untersuchungen im westlichen Berninagebirge. Vierteljahresschr. Naturforsch. Ges. Zürich 60, 55–336 (1915)
Trommsdorff, V.: Unterlagen für die Exkursion “Totalp-Silvretta-Bernina”; 47. Jahrestagung der Deutschen Mineralogischen Gesellschaft in Bern (1969)
Wedepohl, K. H.: Die Nickel- und Chromgehalte von basaltischen Gesteinen und deren Olivin-führenden Einschlüssen. Neues Jahrb. Mineral., Monatsh. 1963, 237–242
Wedepohl, K. H.: Composition and abundance of common igneous rocks. In: Handbook of geochemistry, K. H. Wedepohl, ed., vol. I., pp. 227–249. Berlin-Heidelberg-New York: Springer 1969
White, J. R., Jakeš, P., Christie, D. M.: Composition of greenstones and the hypothesis of sea-floor spreading in the Archaean. Geological Society of Australia, Special Publication No. 3, 47–56 (1971)
Yoder, H. S.: Spilites and serpentinites. Carnegie Inst., Wash. Geophys. Lab., Yearbook 1965–1966, 269–279 (1967)
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Herrmann, A.G., Potts, M.J. & Knake, D. Geochemistry of the Rare Earth elements in spilites from the oceanic and continental crust. Contr. Mineral. and Petrol. 44, 1–16 (1974). https://doi.org/10.1007/BF00373128
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DOI: https://doi.org/10.1007/BF00373128