Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-23T22:43:18.607Z Has data issue: false hasContentIssue false

Axes of Active Warping in the New Zealand Seismic Region

Published online by Cambridge University Press:  01 May 2009

C. A. Cotton
Affiliation:
(Victoria University College, Wellington)

Abstract

Geomorphic evidence is described of very recent upwarping of the shore of Hawke Bay north of Napier, and, as this is of local extent, the suggestion is made that here and in adjoining coastal districts folding is, or recently has been, in progress, with this and another upheaved rib farther to the north-east as anticlinal axes. The coastally drowned areas of Poverty Bay and the north-east and south-west corners of Hawke Bay have escaped the upheaval, and it is suggested that they occupy negative, or synclinal, axes of a fold pattern.

Recorded data are insufficient to show to what extent, if at all, the axes of transverse upheaval recognized in the coastal districts extend westward across the main geanticline of the island. All or most of the axial ranges in this belt have recently been rising, however, for this is indicated by the presence of terraces in the valleys of outflowing rivers and by the fact that the vertical intervals between terraces increase upstream.

Type
Articles
Copyright
Copyright © Cambridge University Press 1950

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

Adkin, G. L., 1930. The origin of the Manawatu Gorge. N.Z. Journ. Sci. Tech., xi, 353–6.Google Scholar
Henderson, J., 1933. Geological aspects of the Hawke's Bay earthquakes. N.Z. Journ. Sci. Tech., xv, 3875.Google Scholar
Imamura, G., 1939. Block movements in Japan. Scientia, xxxiii, 71–6.Google Scholar
Marshall, P., 1933. Effects of earthquake on coastline near Napier. N.Z. Journ. Sci. Tech., xv, 7992.Google Scholar
Oliver, R. L., 1948. The Otaki Sandstone and its geological history. N.Z. Geol. Memoir, No. 7, 41.Google Scholar
Schaffer, F. X., 1948. Der Mond und das Leben. Wien: F. Deuticke, p. 22.Google Scholar
Shepard, F. P., 1948. Submarine Geology. New York: Harper and Brothers.Google Scholar
Speight, R., 1908. In L. Cockayne's Report on a Botanical Survey of the Tongariro National Park. Wellington: Govt. Printer, 712.Google Scholar
Waghorn, R. J., 1927. “Earthquake rents” as evidence of surface faulting in Hawke's Bay. N.Z. Journ. Sci. Tech., ix, 22–6.Google Scholar