Skip to main content Accessibility help
×
Home

Flow Rates and Secondary Structures of Fox and Franz Josef Glaciers, New Zealand

  • Bernard M. Gunn (a1)

Abstract

Measurements have been made of the flow rates of two adjacent glaciers in Westland, New Zealand. A longitudinal flow foliation is developed in one (Franz Josef Glacier) and this was found to be associated with more or less constant rates of flow down the length of the glacier tongue. In the other (Fox Glacier) the foliation is of the transverse type and is associated with a high strain-rate in ice under compression with markedly decreasing rates of flow being found down the length of the glacier. The highest strain-rates are associated with tectonic dirt bands and thrusts.

Résumé

On a fait des mesures de vitesse d’écoulement sur deux glaciers adjacents du Westland, en Nouvelle-Zélande. Une foliation dans l’écoulement longitudinal se développe sur l’un d’eux (le Franz Josef Glacier) et l’on trouve que ceci est en relation directe avec des vitesses d’écoulement plus ou moins constantes tout le long de la langue du glacier. Sur l’autre glacier (le Fox Glacier), la foliation est de type transversal, et va de pair avec une grande vitesse de déformation de la glace sous compression, alors que l’on a trouvé des vitesses d’écoulement qui diminuent sensiblement tout le long du glacier. Les vitesses de déformation les plus grandes sont associées à des bandes limoneuses et à des poussées d’origine tectonique.

Zusammenfassung

An zwei benachbarten Gletschern in Westland auf Neuseeland wurden Geschwindigkeitsmessungen ausgeführt. In einem der beiden, dem Franz Josef Glacier, ist eine Längsbänderung ausgebildet, die mit mehr oder weniger konstanten Fliessgeschwindigkeiten über die ganze Gletscherzunge hinunter verknüpft ist. Die Bänderung des zweiten, des Fox Glacier, hat transversalen Charakter, verbunden mit hohen Spannungswerten in druckbelastetem Eis und gletscherabwärts beträchtlich abnehmenden Fliessgeschwindigkeiten. Die höchsten Spannungswerte treten an tektonisch bedingten Schmutzbändern und Schubflächcn auf.

  • View HTML
    • Send article to Kindle

      To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

      Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

      Find out more about the Kindle Personal Document Service.

      Flow Rates and Secondary Structures of Fox and Franz Josef Glaciers, New Zealand
      Available formats
      ×

      Send article to Dropbox

      To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

      Flow Rates and Secondary Structures of Fox and Franz Josef Glaciers, New Zealand
      Available formats
      ×

      Send article to Google Drive

      To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

      Flow Rates and Secondary Structures of Fox and Franz Josef Glaciers, New Zealand
      Available formats
      ×

Copyright

References

Hide All
Bell, J. M. 1910. A geographical report on the Franz Josef Glacier. Wellington, New Zealand Geological Survey.
Chamberlin, R. T. 1928. Instrumental work on the nature of glacier motion. Journal of Geology, Vol. 36, No. 1, p. 130.
Forbes, J. D. 1859. Occasional papers on the theory of glaciers. Edinburgh, Simpkin.
Gerrard, J. A. F., and others. 1952. Measurement of the velocity distribution along a vertical line through a glacier, by J. A. F. Gerrard M. F. Perutz A. Roch. Proceedings of the Royal Society, Ser. A, Vol. 213, No. 1115, p. 54658.
Hopkins, W. 1862. On the theory of the motion of glaciers. Philosophical Transactions of the Royal Society, Vol. 152, Pt. 2, p. 677745.
McCall, J. G. 1952. The internal structure of a cirque glacier: report on studies of the englacial movements and temperatures. Journal of Glaciology, Vol. 2, No. 12, p. 12230.
Meier, M. F., and others. 1954. Preliminary data from Saskatchewan Glacier, Alberta, Canada, by M. F. Meier G. P. Rigsby R. P. Sharp. Arctic, Vol. 7, No. 1, p. 326.
Nye, J. F. 1952. The mechanics of glacier flow. Journal of Glaciology, Vol. 2, No. 12, p. 8293.
Perutz, M. F. Seligman, G. 1939. A crystallographic investigation of glacier structure and the mechanism of glacier flow. Proceedings of the Royal Society, Ser. A, Vol. 172, No. 950, p. 33560.
Reid, H. F. 1896. The mechanics of glaciers. I. Journal of Geology, Vol. 4, No. 8, p. 91228.
Suggate, R. P. 1950. Franz Josef and other glaciers of the Southern Alps, New Zealand. Journal of Glaciology, Vol. 1, No. 8, p. 42229.
[Ward, W. H.] 1953. Glacier bands: conference on terminology. Journal of Glaciology, Vol. 2, No. 13, p. 22932.

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed