equilibrium-line altitudes (elas) of former glaciers in the zardkuh mountain of the zagros mountain range were reconstructed from glacial-geologic data on former ice limits by using various methods. in the study area various types of glacial landforms such as outwash fans, moraines and well developed glacial cirques are observed. the results suggest that ela were depressed 1433 m below to prese...

The Walls of Jerusalem, in Tasmania’s Central Plateau, is marked by several dolerite escarpments, or “walls”, enclosing sheltered grassy valleys with Pencil Pine forests. Geologically, the area a structurally raised block between two faults, peaks and plateaus being 100 m so higher than surrounding plateau. escarpments may be mainly due to intense faulting shattering cross-faults, removal this ...

The morphology of glacial valley can be described in terms of power law or quadratic equations fitted to valley cross-profiles. These two models are used to study the cross-profiles of 86 valley cross-profiles in the Zardkuh Mountain in order to understand the evolutional patterns of valleys. Assessment of using the power law function indicates that b values for both valley sides range from 1.0...

This report describes the preliminary re.wlts of surficial geological mapping during the 1992 field season in the Chilanko Forks (93Cil) and Chezacut 193CiX) map areas (Figure 4. IO-1 ). As part of the Canad;~ f3ritish Cofumhia Mineral Developme~~t Agreement, the British Columbia Geological Survey Rranch proposed to map the surlicial geology of these weiis to deriw drift exploration potential m...

[1] Each of the large Tharsis Montes volcanoes in the equatorial region of Mars has an unusual Amazonian-aged fan-shaped deposit on its west-northwestern flank. On the basis of Viking Orbiter data, the origin of these deposits has been variously ascribed to volcanic, mass-wasting, tectonic, and glacial processes. Using new MGS and Odyssey data, combined with recent developments in the study of ...

This paper reports the first rare earth element (REE) concentrations in accreted ice refrozen from sub-glacial Lake Vostok (East Antarctica). REE were determined in various sections of the Vostok ice core in order to geochemically characterize its impurities. Samples were obtained from accreted ice and, for comparison, from the upper glacier ice of atmospheric origin (undisturbed, disturbed and...

Overdeepenings are erosional landforms, cut by glaciers into bedrock in basins and valleys. Overdeepening is the glaciological geomorphological process that produces these landforms. The overdeepening important because it has potential to influence response of ice masses climatic changes. In this paper, we analyze topographic bathymetric digital elevation models examine several hundred glacial ...