Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-26T20:56:18.897Z Has data issue: false hasContentIssue false
  • English
  • Français

The origin of rhythmic layering

Published online by Cambridge University Press:  05 July 2018

Sven Maaløe
Sven Maaløe*
Affiliation:
Geologisk Institutt, Realfagbygget, University of Bergen, 5014 Bergen, Norway
Get access Rights & Permissions [Opens in a new window]

Summary

Rhythmic layering in the Skaergaard intrusion shows variation in crystal size and in modal proportions of primocrysts with structural height. These changes are ascribed to variations in nucleation rates of primocrysts. The nucleation theory requires that crystallization occurs under supercooled conditions, and that the crystallization of one primocryst phase may change the composition of the magma in such a manner that the nucleation rates of other primocrysts are influenced. Both these constraints appear to have been fulfilled for the Skaergaard intrusion.

Type
Research Article
Information
Mineralogical Magazine , Volume 42 , Issue 323 , September 1978 , pp. 337 - 345
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1978

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Brothers, (R. N.), 1964. J. Petrol. 5, 255-74.CrossRefGoogle Scholar
Brown, (G. M.), 1956. Phil Trans. Roy. Soc. Lond., Ser. B, 240, 1–53.Google Scholar
Chalmers, (B.), 1964. Principles of solidification. New York, Wiley.Google Scholar
Gibbs, (J. W.), 1876. In The Scientific Papers of J. W. Gibbs, vol. I, New York, Dover Publications Inc., 1961, pp. 55-353.Google Scholar
Goode, (A. D. T.), 1976. J. Petrol. 17, 379-97.CrossRefGoogle Scholar
Gordon, (P.), 1968. Principles of phase diagrams in materials systems. New York, McGraw-Hill, 232 pp.Google Scholar
Harker, (A.), 1908. Mere. Geol. Surv. Scotland.Google Scholar
Hawkes, (D. D.), 1967. Geol. Mag. 104, 473-86.CrossRefGoogle Scholar
Hess, (H. H.), 1960. Mem. Geol. Soc. Amer. 80, 230 pp.Google Scholar
Irvine, (T. N.), 1974. Carnegie Inst. Washington, Yb. 73, 300-16.Google Scholar
Lothe, (I.) and Pound, (G. M.), 1969. In Nucleation, ed. Zettlemoyer, (A. C.), Marcel Dekker Inc., New York, pp. 109-49.Google Scholar
Maaloe, (S.), 1974. Licentiate thesis, Univ. of Copenhagen, 174 PP.Google Scholar
Maaloe, (S.), 1976. J. Petrol. 17, 398-419.Google Scholar
Neilsen, (A. E.), 1964. Kinetics of precipitation. Oxford, Pergamon Press, 151 pp.Google Scholar
Niwe, (Y. Y.), 1976. Contr. Mineral. Petrol. 55, 105-26.CrossRefGoogle Scholar
Pulvertaft, (T. C. R.), 1965. Medd. om Grønland, 169, 1–39.Google Scholar
Turnbull, (D.), 1956. In Solid State Physics, vol. 3, ed. Seitz, (F.) and Turnbull, (D.), New York, Academic Press, pp. 225–306.CrossRefGoogle Scholar
Wager, (L. R.), 196. Geol. Mag. 98, 353-66.CrossRefGoogle Scholar
Wager, (L. R.) and Brown, (G. M.), 1967. Layered igneous rocks. Oliver & Boyd, London, 588 pp.Google Scholar
Walton, (A. G.), 1969. In Nucleation, ed. Zettlemoyer, (A. C.), Marcel Dekker Inc., New York, pp. 225–307.Google Scholar
Zyl, (C. V.), 1959. Trans. Geol. Soc. S. Afr. 62, 1–31.Google Scholar

A correction has been issued for this article:

Errata and Addenda