New Zealand Journal of Geology and Geophysics abstracts
Valley morphology and glaciation in the Tararua Range, southern
North Island, New Zealand
M. S. Brook
Geography Programme
School of People, Environment and Planning
Private Bag 11 222
Massey University
Palmerston North, New Zealand
m.s.brook@massey.ac.nz
B. W. Brock
Department of Geography
University of Dundee
Dundee DD1 4HN
Scotland, UK
Abstract An empirical evaluation of valley
cross-profile morphology using 1:50 000 scale topographic maps is
performed on four valleys in the Tararua Range (southern North Island)
to determine possible glacial influences on valley development.
Power-law (y = axb) and quadratic
equations (y = a + bx + cx2)
are fitted to cross-profiles by statistical regression. Comparison of b
exponents and c coefficients from the power-law and quadratic
equations, respectively, with results from areas glaciated during the
late Quaternary, indicates a glacial signature on the upper parts of
some of the valleys. This supports the hypothesis that the uppermost
parts of valleys in the Tararua Range have been fashioned by glacial
erosion.
Keywords valley; glaciation; cross-profile;
morphology; Tararua Range
G04041; Received 18 October 2004; accepted 30 May 2005; Online
publication date 13 October 2005
New Zealand Journal of Geology & Geophysics, 2005, Vol. 48:
717–724
0028–8306/05/4804–0717 © The Royal Society of New Zealand 2005
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