Hostname: page-component-78c5997874-94fs2 Total loading time: 0 Render date: 2024-11-03T00:54:15.830Z Has data issue: false hasContentIssue false
  • English
  • Français

Petrology of acid xenoliths from Surtsey

Published online by Cambridge University Press:  01 May 2009

Haraldur Sigurdsson
Haraldur Sigurdsson
Affiliation:
Department of Geology, The University, Durham.
Get access Rights & Permissions [Opens in a new window]

Summary

A number of acid plutonic xenoliths from the volcano Surtsey are described, along with fine-grained rock fragments, consisting chiefly of anorthitic plagioclase and tridymite. The chemistry of the xenoliths indicates a compositional pattern from tonalitic to pyrometamorphic types. A hypothesis is put forward that the tonalitic xenoliths have undergone partial fusion during transport to the surface in the basaltic magma, and the removal of a salic liquid from granitic xenolith into the magma has resulted in the formation of a residue of anorthitic plagioclase and tridymite. Granitic xenoliths from other parts of Iceland, and their fusion products, are also described.

Type
Articles
Information
Geological Magazine , Volume 105 , Issue 5 , October 1968 , pp. 440 - 453
Copyright
Copyright © Cambridge University Press 1968

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

REFERENCES

Bunsen, R. 1854. Über v. Waltershausen's Theorie der Gesteinsbildung. Ann. Chem. Pharm, 89, 90–103.CrossRefGoogle Scholar
Burri, C, Parker, R. L. & Wenk, E. 1967. Die optischen Orientierung der Plagioklase. Basel.CrossRefGoogle Scholar
Carmichael, I. S. E. 1963. The crystallization of feldspar in volcanic acid liquids. Q. Jl geol. Soc. Land., 119, 95–131.CrossRefGoogle Scholar
Carmichael, I. S. E. 1964. The petrology of Thingmuli, a tertiary volcano in eastern Iceland. J. Petrol., 5, 435–460.CrossRefGoogle Scholar
Carmichael, I. S. E. & McDonald, A. 1961. The geochemistry of some natural acid glasses from the North Atlantic tertiary volcanic province. Geochim. et cosmochim. Acta, 25, 189–222.CrossRefGoogle Scholar
Forchammer, G. 1843. Erdmann's Journal für praktische Chemie, 46, 93–94.Google Scholar
Hoppe, H.-J. 1938. Chemische und mikroskopische Untersuchungen an isländischen Gesteinen. Chem. d. Erde, 4, 457–479.Google Scholar
Jakobsson, S. 1966. The Grímsnes lavas, south-west Iceland. Acta. Nat. Islandica, 2, 6.Google Scholar
Jonsson, J. 1963. On inclusions in Icelandic rocks (in Icelandic with English summary). Natturufr., 33, 9–22.Google Scholar
Oftedahl, C. 1948. Studies on the igneous rock complex of the Oslo region. Skr. Norske Vidensk. Akad. Oslo, 1. Màt.-Nat. Kl. No. 3.Google Scholar
Schairer, J. F. 1957. Melting relations of the common rock-forming oxides. J. Am. Ceramic Soc., 40, 215–235.CrossRefGoogle Scholar
Schierlitz, L. P. 1882. Isländische Gesteine. Inaug.-Diss. Wien, 8, 38 p.Google Scholar
Sigurdsson, H. 1966. Geology of the Setberg area, Snaefellsnes, western Iceland. Greinar IV, 2. Vis. Isl., 53–125.Google Scholar
Sigurdsson, H. 1967. The Icelandic basalt pile and the question of sial. In: Iceland and midocean ridges. Report of a symposium, Reykjavik, 32–49.Google Scholar
Smith, J. R. & Yoder, H. S. Jr 1956. Variations in X-ray powder diffraction patterns of plagioclase feldspars. Am. Miner., 41, p. 632.Google Scholar
Steinthórsson, S. 1966. Petrography and chemistry, In: Surtsey Progress Report, 2, 77–85.Google Scholar
Tryggvason, T. 1965. Petrographic studies on the eruption products of Hekla, 1947–48. In: The eruption of Hekla 1947-1948, 4, 6.Google Scholar
Walker, G. P. L. 1966. Acid volcanic rocks in Iceland. Bull. volc., 29, 375–406.CrossRefGoogle Scholar