Antarctic geomorphological and glaciologica 1:250.000map series: Mount Murchison quadrangl, northern Victoria land, Explanatory notes.

Geomorphological and glaciological features are represented on a georeferenced satellite image mosaic of the Mount Murchison quadrangle, northern Victoria Land, Antarctica (73-74° S, 162-166°30′ E), at a scale of 1 : 250 000. Landforms and deposits of glacial and periglacial environments, forms rela...

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Bibliographic Details
Published in:Annals of Glaciology
Main Authors: BARONI C., FREZZOTTI M., SALVATORE M. C., TABACCO I. E., VITTUARI L., BIASINI A., CIMBELLI A., OROMBELLI G., MENEGHEL, MIRCO, BONDESAN, ALDINO
Other Authors: Baroni, C., Frezzotti, M., Salvatore, M. C., Meneghel, Mirco, Tabacco, I. E., Vittuari, L., Bondesan, Aldino, Biasini, A., Cimbelli, A., Orombelli, G.
Format: Article in Journal/Newspaper
Language:English
Published: 2004
Subjects:
Antarctic
Victoria Land
Transantarctic Mountains
Quadrangle
Hercules
Murchison
Deep Freeze Range
Aviator Glacier
Mount Murchison
Hercules Névé
Deception Plateau
Antarc*
Antarctica
Online Access:http://hdl.handle.net/11577/2460741
https://doi.org/10.3189/172756404781814131
Description
Summary:Geomorphological and glaciological features are represented on a georeferenced satellite image mosaic of the Mount Murchison quadrangle, northern Victoria Land, Antarctica (73-74° S, 162-166°30′ E), at a scale of 1 : 250 000. Landforms and deposits of glacial and periglacial environments, forms related to mass wasting, wind action, weathering and geological structures are identified and mapped. The chronological sequence of landforms and deposits, morphography and lithology is also indicated. Glacier velocities (up to 180 m a−1) and ice-front fluctuations (1964-99) were determined by analysis of aerial photography and satellite imagery. Airborne radar surveys reveal that the greatest ice thickness (about 1500 m) is located in the grounding zone of Aviator Glacier. Up to 1000 m of ice bury the subglacial relief of Deception Plateau, Hercules Névé and the Deep Freeze Range. Snow accumulation rates (average = 170 kg m−2 a−1) exhibit an overall negative correlation with altitude and distance from the coast. The relationships among relict erosional landforms and volcanic activity provide chronological constraints for the palaeogeographic evolution of this sector of the Transantarctic Mountains.

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