Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Oxygen-isotope ratios in metamorphic eclogites

  • 85 Accesses

  • 42 Citations

Abstract

Rocks having δO18-values less than those of normal basalts (5 to 7 permil) are very rare. However, anomalously low δ-values are common in European B-type eclogites, including those from N. W. Spain (1.5 to 5.6 permil), W. France, S. Germany, and W. Norway. Since isotopic exchange with sediments during metamorphism would have increased their δ-values, we tentatively conclude that the isotopically light eclogites descended from basaltic rocks which interacted with light meteoric waters at high temperatures, as did the Tertiary igneous rocks of W. Scotland. Isotopically heavy eclogites from S. Germany (8.6 to 10.5 permil) are isotopically similar to calc-silicate rocks from N. W. Spain and are possibly derived from dolomitic pelites.

Coexisting quartz and rutile effectively fractionate the isotopes of oxygen and thereby constitute a potentially useful geothermometer. The average quartz-rutile fractionation in B-type eclogites is 6.5 permil.

This is a preview of subscription content, log in to check access.

References

  1. Bearth, P.: Zur Entstehung alpinotyper Eklogite. Schweiz. Mineral. Petrog. Mitt. 45, 179–188 (1965).

  2. Becke, F.: Die Gneissformation des niederösterreichischen Waldviertels. Tschermaks Mineral. Petrog. Mitt., N. F. 4, 285–408 (1882).

  3. Beck-Mannagetta, P.: Zur Deutung der Eklogite im Koralpenkristallin (Zentralalpen). Tschermaks Mineral. Petrog. Mitt., D. F. 7, 437–450 (1961).

  4. Cogné, J.: Une “nappe” Cadomienne de style Pennique: la série cristallophyllienne de Champtoceaux en bordure meridionale du synclinal d'Ancenis (Bretagne-Anjou). Bull. Serv. Carte Géol. Alsace Lorraine 19, 107–136 (1966).

  5. Coleman, R. G., Lee, D. E., Beatty, L. B., Brannock, W. W.: Eclogites and eclogites: Their differences and similarities. Bull. Geol. Soc. Am. 76, 483–508 (1965).

  6. Craig, H.: Standard for reporting concentrations of deuterium and oxygen-18 in natural waters. Science 133, 1702 (1961).

  7. Düll, E.: Ueber die Eklogite des Münchberger Gneissgebietes. Geogn. Jahresh. Munchen 15, 1–92 (1902).

  8. Eigenfeld, R.: Über die mineralfazielle Stellung der Pyroxengranulite. Geol. Rundschau 52, 65–94 (1962).

  9. Eigenfeld-Mende, I.: Metamorphe Umwandlungserscheinungen an Metabasiten des Südschwarzwaldes im Raume Kandel Freiburg. Mitt. Bad. geol. Landesanst., N. F. 1, 1–111 (1948).

  10. Ernst, W. G.: Mineral parageneses in Franciscan metamorphic rocks, Panoche, Pass. California. Bull. Geol. Soc. Am. 67, 879–914 (1965).

  11. Garlick, G. D.: Oxygen isotope fractionation in igneous rocks. Earth Planet. Sci. Letters 1, 361 (1966).

  12. —: The stable isotopes of oxygen. In: Handbook of Geochemistry (ed. K. H. Wedepohl), Vol. 2/1, sect. 8-B., 1–27. Berlin-Heidelberg-New York: Springer 1969.

  13. Hahn-Weinheimer, P.: Geochemische Untersuchungen an den ultrabasischen und basischen Gesteinen der Münchberger Gneissmasse (Fichtelgebirge). Neues Jahrb. Mineral. Abhandl. 92, 203–278 (1959).

  14. Javoy, M., Allégre, C. J.: Étude de la composition 18O/16O de quelques eclogites: consequences petrologiques et geophysiques. Bull. Soc. Geol. France, 7th Ser. 9, 800–808 (1967).

  15. Lawrence, J. R., Taylor, H. P.: D and O18 contents of soils and clay-rich weathered zones (Abstract). Trans. Am. Geophys. Union 50, 347 (1969).

  16. Morgan, B. A.: Geology of the Valencia Area Carabobo, Venezuela. Ph. D. Thesis, Princeton (1967).

  17. O'Neil, J. R., Epstein, S.: Oxygen isotope fractionation in the system dolomite-calcitecarbon dioxide. Science 152, 198–201 (1966).

  18. Orville, P. M.: A model for metamorphic differentiation origin of thin-layered amphibolites. Am. J. Sci. 267, 64–86 (1969).

  19. Schwarcz, H. P., Clayton, R. N.: Oxygen isotope studies of amphibolites. Can. J. Earth Sci. 2, 72–84 (1965).

  20. Shieh, Y. N., Taylor, H. P.: Oxygen and carbon isotope studies of contact metamorphism of carbonate rocks (Abstract). Trans. Am. Geophys. Union 50, 328 (1969).

  21. Smulikowski, K.: Eclogites of the Śnieoznik Mts. in the Sudetes. Geol. Sudetica III, 7–180 (1967).

  22. Taylor, H. P.: The oxygen isotope geochemistry of igneous rocks. Contr. Mineral. Petrol. 19, 1–71 (1968).

  23. —, Coleman, R. G.: O18/O16 ratios of coexisting minerals in glaucophane-bearing metamorphic rocks. Bull. Geol. Soc. Am. 79, 1727–1756 (1968).

  24. —, Epstein, S.: O18/O16 ratios in rocks and coexisting minerals of the Skaergaard intrusion, East Greenland. J. Petrol. 4, 51–74 (1963).

  25. Vogel, D. E.: Petrology of an eclogite and pyrigarnite-bearing polymetamorphic rock complex at Cabo Ortegal, N. W. Spain. Leidse Geol. Medelel. 40, 121–213 (1967).

  26. Wager, L. R., Deer, W. A.: The petrology of the Skaergaard intrusion, Kangerdlugssnag, East Greenland, Meddel. Grönl. 105, 352 pp. (1939).

Download references

Author information

Additional information

Lamont-Doherty Geological Observatory of Columbia University Contrib. No. 1559.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Vogel, D.E., Garlick, G.D. Oxygen-isotope ratios in metamorphic eclogites. Contr. Mineral. and Petrol. 28, 183–191 (1970). https://doi.org/10.1007/BF00405748

Download citation

Keywords

  • Oxygen
  • Quartz
  • Fractionation
  • Rutile
  • Mineral Resource