By A. J. Maltman
The stream of glacier ice can produce buildings which are remarkable and gorgeous. linked sediments, too, can enhance striking deformation constructions, and examples are remarkably good preserved in Quaternary deposits. even supposing such positive factors have lengthy been well-known, they're now the topic of latest realization from glaciologists and glacial geologists. This selection of papers addresses how the equipment for unravelling deformation buildings developed in recent times by means of structural geologists can be utilized for glacial fabrics, and the possibilities provided to structural geologists by means of glacial fabrics for learning deformation in rocks. There are authoritative studies via prime scientists with a world insurance. Readership: Quaternary Geologists, glaciologists, glacial geomorphologists, structural geologists, sedimentologists, engineering geologists, ultimate 12 months undergraduates and Masters degrees. additionally to be had: flow Exploration in Glaciated Terrain - ISBN 1862390827 Cryospheric structures: Glaciers And Permafrost - ISBN 1862391750 The Geological Society of LondonFounded in 1807, the Geological Society of London is the oldest geological society on the earth, and one of many biggest publishers within the Earth sciences.The Society publishes a variety of fine quality peer-reviewed titles for teachers and pros operating within the geosciences, and enjoys an enviable overseas acceptance for the standard of its work.The many parts during which we submit in include:-Petroleum geology-Tectonics, structural geology and geodynamics-Stratigraphy, sedimentology and paleontology-Volcanology, magmatic experiences and geochemistry-Remote sensing-History of geology-Regional geology publications
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Extra info for Deformation of Glacial Materials (Geological Society Special Publication No. 176)
3. -L. TISON & B. HUBBARD Fig. 7. Schematic diagram of textural ice types at Glacier de Tsanfleuron. Core stratigraphic units (Units 1 to 4) are described in the text. Photomicrographs characterize typical features of the various units. The equilibrium line altitude, estimated on the basis of late-summer snow-line position, is c. l. (see Fig. 1). The uppermost layers of the ice-marginal core 96-5 are characterized by a contrast between the fine-grained bubbly ice, which has a uniform fabric (Fig.
For both undoped and doped ice crystals, basal slip was the primary deformation mode. Results and discussion The resolved shear stress-strain curves for the undoped ice single crystals obtained at various strain rates are illustrated in Figs 3-5. They all show behaviour typical for ice deforming by basal slip, that is, with increasing strain the stress increases linearly to a peak value before falling, initially rapidly, and then more slowly toward a plateau stress. The pronounced drop in flow stress after the peak is presumably due to dislocation multiplication.
Deep radio echo soundings in the vicinity of GRIP and GISP2 drill sites, Greenland. Polarforschung, 62, 11-16. HUBBARD, B. & SHARP, M. 1989. Basal ice formation and deformation: a review. Progress in Physical Geography, 13, 529-558. HUDLESTON, P. J. 1977. Progressive deformation and development of fabric across zones of shear in glacial ice. In: SAXENA, S. K. & BHATTACHARIJS (eds) Energetics of Geological Processes. Springer-Verlag, New-York, 121-150. JOHNSEN, S. , STAUFFER, B. & STEFFENSEN, J.
Deformation of Glacial Materials (Geological Society Special Publication No. 176) by A. J. Maltman