Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-30T15:09:40.188Z Has data issue: false hasContentIssue false
  • English
  • Français

Microscopic Colloform Structures in “Mud Balls” at Waiotapu, New Zealand

Published online by Cambridge University Press:  01 May 2009

J. A. Bartrum
J. A. Bartrum
Affiliation:
Auckland University College
Get access Rights & Permissions [Opens in a new window]

Extract

A Recent paper in this journal by K. P. Oakley (1940) has drawn attention to certain structures in Recent rhyolitic ashes of Malaya, and contraverts the earlier view that these structures represent sponge spicules. Oakley suggests tentatively that most of them are the casts of minute spherical and tubular hollows in the material of the ashes. It may be of interest, therefore, to describe comparable material from New Zealand which appears to support this suggestion.

Type
Articles
Information
Geological Magazine , Volume 78 , Issue 3 , June 1941 , pp. 232 - 235
Copyright
Copyright © Cambridge University Press 1941

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

Berry, J. A., 1928. The Volcanic Deposits of Scinde Island. With Special Reference to the Pumice Bodies called Chalazoisites. Trans. N. Z. Inst., 59, 571–608.Google Scholar
Grange, L. I., 1937. The Geology of the Rotorua-Taupo Subdivision. N. Z. Geol. Sum., Bull. No. 37 (n.s.).Google Scholar
Oakley, K. P., 1940. The Organic Content of Recent Rhyolitic Ashes in Malaya. Geol. Mag., lxxvii, 289–294.CrossRefGoogle Scholar
Rogers, A. F., 1917. A Review of the Amorphous Minerals. Journ. Geol., xxv, 515–541.CrossRefGoogle Scholar