摘要:

AbstractIn 1963 the Geography Department of the University of Canterbury established a project for the study of micro-climate and erosion processes in a small valley in one of the intermontane basins of the Southern Alps, New Zealand. The area selected is considered to be representative of a wide area of the Southern Alps, showing a variety of types of vegetation cover and a marked aspect contrast between the opposing valley sides. Details of the equipment installed for both aspects of the study are given, together with some results of measurements made so far. Relationships between runoff, rainfall and sediment yields are briefly discussed, and the importance of needle ice as an agent of erosion is noted. A summary of the total amount of sediment yielded by the various plots is given, and of the amount of surface lowering represented by these figures. Some details of the energy exchange in a mountain environment are discussed, and the effect of a snow cover on net radiation and soil temperatures is described.

ISSN:0435-3676    

DOI:10.1080/04353676.1968.11879768

出版商:Taylor&Francis    

年代:1968

数据来源: Taylor

摘要:

AbstractIt was formerly supposed that the small island of Grímsey about 40 km north of the mainland of Iceland, had not been glacierized during the Würm period. Evidence for a glaciation is presented together with arguments for a Würm dating. The wastage pattern of the northerly flowing ice was influenced during the latter stages of deglaciation by the Skjálfandadjúp trough, east of Grímsey. This caused changes in the direction of ice movement and the formation of meltwater channels dipping to the south and south-west.

ISSN:0435-3676    

DOI:10.1080/04353676.1968.11879769

出版商:Taylor&Francis    

年代:1968

数据来源: Taylor

摘要:

AbstractSystematic observations on Mikkaglaciären in northern Sweden are presented and a general discussion is given concerning drainage connected with structures in the upper layer of a glacier. The basic conditions (surface drainage and structural pattern) for this drainage are first analyzed. A series of observations on“drainage structures”during a five-year period is presented and reproduced on a map (Fig. 7). Descriptions and comments are given as to the formation and further development of observed glacier mills and related features, with regard to local environmental characteristics and to the time factor involved. The development is studied also in its correlation to the transfer and rotation of the initial, mill-localizing cracks, and as regards the mutual relationships between neighbouring mill units. Different possibilities of recognizing sub-surface inter-connections between mills are commented on, and an obliquely transverse deflection of the upper parts of sub-surface drainage courses is pointed out. This drainage characteristic leads to a consideration of the most probable, near-lateral location of the further reaches of internal drainage courses.

ISSN:0435-3676    

DOI:10.1080/04353676.1968.11879770

出版商:Taylor&Francis    

年代:1968

数据来源: Taylor

摘要:

AbstractPatterned ground in the form of large sorted stone-stripes occurs at 450 m altitude in the Rhinog mountains, North Wales. Exposed boulder stripes are separated by vegetated zones, the outer parts of which are composed of boulders with peat or fine earth matrix, the central portions of relatively stoneless fine earth. The width of the pattern is between 5 and 8 m. The stripes are well-preserved relics of Pleistocene periglacial conditions but lack of detailed knowledge of glaciation history of the area prevents precise dating.

ISSN:0435-3676    

DOI:10.1080/04353676.1968.11879771

出版商:Taylor&Francis    

年代:1968

数据来源: Taylor

摘要:

AbstractWeathering pits occurring in prominent positions on the ridge-tops and summits in part of north-east Sørøy, Finnmark, are described. Such cavities, of remarkably regular form, here occur only in gneisses. They are considered to have developed by a combination of microgelivation and chemical weathering.

ISSN:0435-3676    

DOI:10.1080/04353676.1968.11879772

出版商:Taylor&Francis    

年代:1968

数据来源: Taylor