The Architecture of a Modern Push-Moraine at Svalbard as Inferred from Ground-Penetrating Radar Measurements

Internal characteristics of ice-marginal sediments deduced from georadar profiling and sediment properties (Brøgger Peninsula, Svalbard)

“…Higher frequency antennas could allow for better resolution of this nearsurface horizontal boundary (e.g. 200 MHz radargrams in Lønne and Lauritsen, 1996). In concert with more ground verification this may improve correlation of sedimentologic and georadar observations.…”

“…Survey continuity into the morainic environment in front of the glaciers has been made in a detailed sedimentologic manner (Hambrey et al, 1997Glasser et al, 1999). However, using georadar in frozen proglacial deposits for reconnaissance and palaeo environmental reconstruction seems to be exceptional (Lønne and Lauritsen, 1996). Instead, in periglacial environments with permafrost conditions it was more applied to internal structures of rock glaciers (Berthling et al, 2000;Isaksen et al, 2000).…”

Determination of the internal structure of alpine talus deposits using different geophysical methods (Lechtaler Alps, Austria)

“…At the foot of the taluses the vegetated late-glacial moraine ridge. Moorman et al, 2003), the detection of internal structures in moraines and rock glaciers (Lønne and Lauritsen, 1996;Berthling et al, 2000), the investigation of fluvial sedimentary structures (Jol, 1996;Roberts et al, 1997) and many more applications in substrates ranging from peat to sand dunes. Until recently only a few GPR studies on talus slopes have been carried out (Berthling et al, 2000;Sass and Wollny, 2001).…”

Deglaciation dynamics following the Little Ice Age on Svalbard: Implications for shaping of landscapes at high latitudes

“…We discuss the evolution of the morphogenetic zones from the LIA and projected into a fully deglaciated basin of the future. By comparing the reconstructed sedimentation pattern with similar investigations of glaciers in the vicinity Sletten et al, 2001;Lønne, 2005;Lønne and Lauritsen, 1996;Lønne and Nemec, 2004), we suggest that the growth and decay of glaciers and ice-contact deposits at Svalbard are controlled by some critical factors: low temperatures and large annual variations in solar radiation (1), moraines with an ice-core and thus a low preservation potential (2), and run-off restricted to a few intense months of summer ablation on permafrozen ground (3).…”