Mathematics – Logic
Scientific paper
Aug 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000mpse.conf..101l&link_type=abstract
International Conference on Mars Polar Science and Exploration, p. 101
Mathematics
Logic
Landforms, Ice, Morphology, Volcanoes, Geochronology, Glaciers, Radio Echoes, Petrology, Length, Erosion
Scientific paper
The interaction between volcanoes and ice can result in the creation of very distinctive landforms, including tuyas, hyaloclastite ridges, and extensive hyaloclastite beds and columnar jointed flows. Such features have been observed in many places around the world although most abundantly in Iceland, the Canadian Cordillera, and Antarctica. The aim of the present work was to study the characteristics of the hyaloclastite ridges beneath the glacier using the radio echo data. Two types of ridge have been determined. The smaller shorter units termed simple ridges are thought to correspond to single eruption units. The larger scale morphological units, referred to here as composite ridges, may include several of the simple ridges and are thought to have been formed during a number of eruptions along single or parallel fissures. In attempt to validate this, a pseudo survey was conducted over an ice-free area of similar morphology and known petrology. It was determined that the simple ridges do indeed correspond to individual eruption units although, it is unlikely that all the units can be identified from the radio echo data alone. Additional information is contained in the original extended abstract.
Björnsson Helgi
Gudmundsson Magnús T.
Langley K. A.
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