Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-26T21:02:32.241Z Has data issue: false hasContentIssue false

The Use of Magnetic Measurements for the Study of the Structure of Talus Slopes

Published online by Cambridge University Press:  01 May 2009

Ian McDougall
Affiliation:
Department of Geophysics, Australian National University, Canberra.
Ronald Green
Affiliation:
Department of Geophysics, Australian National University, Canberra.

Abstract

By means of measurements of the direction of magnetization, talus may be distinguished from rock which has remained in situ. A criterion has been developed for the conditions under which the boundary between talus and rock in situ can be identified. This method is particularly useful when the upper portion of the rock in situ is broken and weathered and it has been applied with success to a scarp in the dolerite of the Western Tiers in Tasmania. Here the results suggest that in the upper part of the talus the jointed blocks have definitely fallen into a sub-horizontal position, whereas at lower levels they are only slightly tilted.

Type
Articles
Copyright
Copyright © Cambridge University Press 1958

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

Aramaki, S., and Akimoto, S., 1957 Temperature Estimation of Pyroclastic Deposits by Natural Remanent Magnetism. Amer. Journ. Sci., cclv, 619.CrossRefGoogle Scholar
Irving, E., 1956 The magnetization of the Mesozoic Dolerites of Tasmania. Proc. Roy. Soc. Tasmania, xc, 157168.CrossRefGoogle Scholar
Jaeger, J. C., and Joplin, G., 1955 Rock Magnetism and the Differentiation of Dolerite Sill. Journ. Geol. Soc. Australia, ii, 119.Google Scholar
Jaeger, J. C., and Green, R., 1958 A cross-section of a Tholeiite Sill. Proc. of a Symposium on Dolerites. University of Tasmania Press.Google Scholar
Joplin, G., and Jaeger, J. C., 1957 The Problem of the Quartz Dolerites: Some significant facts concerning mineral volume, grain size, and fabric. Proc. Roy. Soc. Tasmania, xci, 129144.Google Scholar
McDougall, I., 1958 A note on the Petrology of the Great Lake North Sill. Proc. of a Symposium on Dolerites. University of Tasmania Press.Google Scholar
McKellar, J. B. A., 1957 Geology of Portion of the Western Tiers. Rec. of Queen Victoria Museum, Launceston, New Series, vii.Google Scholar