Is vertical shear in an ice shelf negligible?
Vertical shear stress in ice shelves cannot be precisely zero, since the upper and lower surfaces are generally not parallel. By performing stress balance on a vertical column in an […]
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Vertical shear stress in ice shelves cannot be precisely zero, since the upper and lower surfaces are generally not parallel. By performing stress balance on a vertical column in an […]
Using expressions for ice-shelf creep derived by Weertman (1957) and Thomas (1973[b]) a general method is developed for calculating equilibrium thickness profiles, velocities, and strain-rates for any ice shelf. This […]
Samples from 15 Antarctic and Subantarctic localities were measured and subjected to discriminatory analysis of shell morphology. Only two species were recognized as belonging to the genus Yoldia Möller, 1842: […]
Two species of moss growing in Moss Lake on Signy Island, South Orkney Islands, had unusual morphologies with large leaves and long internodes. Both Calliergon sarmentosum and Drepanocladus cf. aduncus […]
Large numbers of the Southern Hemisphere lamprey, Geotria australis, have been found in the regurgitated food of albatrosses breeding on South Georgia. This finding suggests that this lamprey is found […]
THE presence of both paraffinic and polycyclic aromatic hydrocarbons (PAH) in sediments and soils from the Northern Hemisphere has been well documented1–5. Paraffinic hydrocarbons are generally assumed to be derived […]
The annual rate of sediment accumulation and the proportion due to resuspension in a sheltered sub-Antarctic bay has been deduced from sediment trap experiments and vertical profiles of organic matter […]