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Intensity versus duration of bedrock weathering under periglacial conditions in high Arctic Canada

The influence of bedrock mineralogy, texture, porosity and structure on microfracturing and subsequent bedrock disintegration is discussed. Preservation of periglacial features beneath glacial ice is suggested. Other factors influencing both

Observations on the Ross Orogen, Antarctica in Gondwana Five. Selected papers and abstracts of papers.

in both tectonic style and timing. Relationships discussed in the paper suggest a migrating tectonic cycle from the African to the Australian sector of Gondwana from the late Precambrian through the middle Paleozoïc.

Evolution of the soil landscape in the sand region of the Arctic Coastal Plain as exemplified at Atkasook, Alaska

succession that can be used effectively in defining the gross pattern of landform development is demonstrated for soils of both wat and dry sites.

Vorkommen und Entstehung von tri-oktaedrischen Smektiten in den Basalten und Boden der Konig-Georg-Insel (S-Shetlands/West-Antarktis) (Occurrence et genèse d'une smectite tri-octoédrique dans les basaltes et les sols de King George Island (S-Shetlands/Antarctique ouest))

Both the olivine bearing tholeiite basalts of the island and the brown soils which have developed on the basalts contain 2-20 % of a Mg-rich, Fe2+ and Al-bearing tri-octahedral smectite, e. g. Mg-saponite. Due to petrographic and crystal chemical

Etude des structures d'englacement en mer du Groenland par télédétection spatiale (NOAA and LANDSAT)

and interpretations: a distinction is made between fjord ice, degradation modalities are established. The diversity of pack ice is studied, forms of floes and drift movements are specially detailed. 15 plates: various spatial imagery of East Greenland sea ice, both

Neoglacial fluctuations of glaciers, southeastern Ellesmere Island, Canadian Arctic archipelago

Two new series of radiocarbon age determinations form the basis for this paper. The first series shows that both the outer east coast of Ellesmere Island (north to latitude 7836) and much of Makinson Inlet were free of glacier ice prior to 9000