Formation mechanisms for ice-stream lateral shear margin moraines
The AA. review the characteristics of lateral shear margin moraines and present 2 quantitative models for their formation : 1) differential erosion rates related to lateral variations in the stream velocity and 2) lateral incursion from inter-stream
ridges after the thinner stream retreats, where the shear margin moraine is consequently just a terminal moraine of the inter-stream ridge. The conditions that permit shear margin moraines to form are quite constrained. This is consistent
with the infrequent observations of lateral shear margin moraines.
is a search for the contemporary boundaries of Őrség looking back to a thousand years’ history. A demarcation scheme is offered which focuses on the region itself and the marginal zones. - (AM)
The paper presents poverty and marginalization of population in the area of former state farmlands illustrated with examples from The Middle Pomerania region. The issue of vital importance to the rural community of The Middle Pomerania region
Seafloor evidence for ice shelf flow across the Alaska-Beaufort margin of the Arctic Ocean
New imagery of seeafloor along a 640 km stretch of the Alaska and Beaufort margins (ABM) in water depths from 250 to 2800 m depicts a repetitive asociation of glaciogenic bedforms (lineations and iceberg scours), broad erosional bathymetric features
Recent marginal changes of the Mittivakkat Glacier, Southeast Greenland and the discovery of remains of reindeer (Rangifer tarandus), polar bear (Ursus maritimus) and peaty material
During field observations in August 2005 antler remains of a reindeer were found at a recently deglaciated site at about 500 m asl., and bones from a polar bear were found at about 300 m asl. along the margin of Mittivakkat Glacier. In August 2006
This study focuses on rainfall, air temperature and soil temperature measurements recorded at 2 field stations on the Lesotho-Drakensberg escarpment edge. Temperatures confirm the marginal periglacial nature as postulated for previously
and marginal permafrost bodies. Stonenets and stripes are developed where a residual bedrock-derived debris mantle is present. They reflect frost-induced movements within the active layer. The latest of these movements probably occurred during the cold period
The plateau areas of the Kashubian Coastland are characterised by the occurrence of isolated patches (isolated morainic plateaux) separated by valley or ice marginal streamway lowerings. Their land relief is diversifi ed by valleys presently used
of the East European - i.e. Ukrainian - steppe from the 16th through 20th centuries. The research results on the Great Hungarian Plain are applied to understand the development of the Ukrainian steppe territory as a marginal zone. - (AM)