New Zealand Journal of Geology and Geophysics abstracts

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Note
Growth of the Tongariro volcanic complex: new evidence from K-Ar age determinations

B. J. HOBDEN

Department of Geology
University of Canterbury
Private Bag 4800
Christchurch, New Zealand

B. F. HOUGHTON

Institute of Geological and Nuclear Sciences Ltd
Wairakei Research Centre
Private Bag 2000
Taupo, New Zealand

M. A. LANPHERE

Branch of Isotope Geology
U.S. Geological Survey
345 Middlefield Road
Menlo Park, CA 94305 U.S.A.

I. A. NAIRN

Institute of Geological and Nuclear Sciences Ltd
Wairakei Research Centre

Abstract  New K-Ar age determinations indicate that the exposed portion of the Tongariro volcanic complex has grown steadily since at least 275 ka, with intervals of vigorous cone growth at 210-200, 130-70, and 25 ka to the present day.

Keywords  Tongariro volcano; K-Ar age determinations

New Zealand Journal of Geology and Geophysics, 1996, Vol. 39: 151-154

0028-8306/96/0151 $2.50/0 (c) The Royal Society of New Zealand 1996

PDF file of entire paper: medium quality (276K); (scanned from paper original: notes about this process)

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