Found 14065 items
1 February, 1969
The glaciological need for depth-sounding in glaciers, ice sheets, and ice shelves is discussed. A v.h.f. radar, designed specifically to produce continuous profiles of ice depth is described. Some practical…Read more on A radio echo equipment for depth sounding in polar ice sheets
1 January, 1969
Eruptions, apparently associated with the caldera fault zone, have created a new island and a new 5 km fissure. Several explosive vents along the fissure caused a rift in the…Read more on Volcanic activity at Deception Island in 1967 and 1969
1 January, 1969
The early embryonic development of Pygoscelis adeliae, up to the stage with fused neutral folds, was investigated by means of serial sections and compared with the development of the chick…1 January, 1969
Two giant icebergs are moving westwards along the coast of Antarctica in the Weddell Sea. They were conspicuous throughout the 1967–68 season in ESSA-3 satellite photographs supplied by the United…1 January, 1968
This was published with two map sheets (ref DOS(Misc) 453), which are included as separate TIFF files.1 January, 1968
Comparisons are made between the Lesser Antilles and the South Sandwich Islands, the recent volcanic island chains at the eastern margins of the Caribbean and Scotia arcs. Although situated in…Read more on Comparative volcanology and petrology of the atlantic island-arcs
1 January, 1968
1. The metabolic rates of four Antarctic fish have been measured, including the haemoglobin-less Chaenocephalus aceratus. 2. The respiratory rates of the fish are discussed in relation to body weights.…Read more on The respiratory metabolism of some Antarctic fish
1 January, 1968
Almost all accounts of the natural history of the grey seal Halichoerus grypus give the impression that a cow invariably seeks and feeds only her own pup among the dozens…1 January, 1968
Field measurements are presented of dielectric absorption in Antarctic snow and ice at frequencies of a few hundred megahertz. They are compared with measurements by other authors at very high…1 January, 1967
An examination of material from Signy Island, in the South Orkney group, shows that large amounts of plant nutrients are moving through the ecosystem of the island. Physical weathering is…Read more on Factors affecting the availability of plant nutrients on an Antarctic island
1 January, 1967
Although all the soils on Signy Island are at an early stage of development a number of contrasting types are present. In this report the influence of the various internal…1 January, 1967
1. Body-weight, skinfold thickness and food intake were measured at regular intervals in twenty-five young men while on an Antarctic expedition. 2. The mean calorie intake over the year was…