[1] In 2003, Ekström et al. reported the detection and location of a new class of earthquakes occurring in the polar regions of the Earth. The proposed source mechanism involves large and sudden sliding motions of glaciers, which gave the name ‘‘glacial earthquakes’’ to these events. In this study we localize some of these earthquakes with a time reversal mirror (TRM) algorithm, which, contrary...

1 The indigenous oak species (Quercus spp.) of the Upper Rhine Valley have migrated to their 2 current distribution range in the area after the transition to the Holocene interglacial. Since 3 post-glacial recolonization, they have been subjected to ecological changes and human 4 impact. By using chloroplast microsatellite markers (cpSSRs), we provide detailed 5 phylogeographic information and ...

Reconnaissance mapping in the Big Salmon Complex in northwestern British Columbia (104N NE and 1040 NW, Figure la) was initiated in 1997 to test long-standing correlations (e.g. Mulligan, 1963) with rocks of the Yukon-Tanana Terrane (formerly Yukon Group) in southern Yukon (Figure lb). Such correlations are especially important t?om an economic standpoint (e.g. Nelson, 1997) because of the rece...

It is a scientist’s mission to try to remain unbiased. However, certain factors play a role in scientific analyses that are not controlled by conscious thought. These factors are potentially very important in areas of science where interpretations are based on a scientist’s ability to identify patterns or structures. One such area is the micromorphology of glacial sediments. In this paper we in...

The Rodoretto Valley (about 25 km2) (Western Alps, NW Italy) shaped in the metamorphic bedrock, covered by Quaternary sediments, is involved significant deep-seated gravitational slope deformation (DSGSD). A detailed field survey revealed several morpho-structures typically related to DSGSD phenomena (open fractures, doubled ridges, scarps, trenches, counterscarps and bulging reliefs) other mor...

Using CHIRP subbottom profiling across the Chukchi shelf, offshore NW Alaska, we observed a large incised valley that measures tens of kilometers in width. The valley appears to have been repeatedly excavated during sea level lowering; however, the two most recent incisions appear to have been downcut during the last sea level rise, suggesting an increase in the volume of discharge. Modern drai...

Introduction: While Amazonian fluvial landforms are not abundant on Mars, remote sensing data have revealed details regarding the role of ice in non-polar regions in the Amazonian. Evidence includes 1) deposits interpreted to be remnants of cold-based glaciers at low-and mid-latitudes [1-6]; 2) mantling deposits interpreted to be a desiccating layer of ground ice [7-8]; 3) laterally-expansive u...

Glacial deposits on the north slope of the Uinta Mountains were investigated through map and air photo interpretation combined with fi eld mapping. Deposits representing the Smiths Fork (local Pinedale equivalent), Blacks Fork (Bull Lake equivalent) and pre-Blacks Fork Glaciations are present in the form of terminal and lateral moraines, ground moraine, and outwash valley trains. Nineteen separ...