Assessing the relative efficiency of fluvial and glacial erosion through simulation of fluvial landscapes

Ice thickness and topographic relief in glaciated landscapes of the western USA

“…This partly reflects the lower thalweg at the LGM ELA rather than higher divides. The Sierra Nevada as a whole has greater relief than the Sangre de Cristo Range (Brocklehurst and Whipple, 2006), and this is reflected in the ∼ 400 m greater valley floor relief above the LGM ELA in the basins of the eastern Sierra Nevada than in the Sangre de Cristo Range. Valley floor relief and drainage basin relief (of which valley floor relief is a key constituent) are the only relief measures to clearly reflect this distinction.…”

OSL dating of glacier extent during the Last Glacial and the Kanas Lake basin formation in Kanas River valley, Altai Mountains, China

“…Therefore records of past glacial advances preserved in moraines, glacial extent, and other geomorphic features give valuable clues of past climatic change (Thackray et al, 2008). On the other hand, alpine glaciers have been broadly considered as having sustained erosion rates of 0.1-100 mm a − 1 , and it is generally assumed that large glaciers can erode more rapidly than smaller glaciers, especially in an ablation zone (e.g., Hallet et al, 1996;Alley et al, 2003;Brocklehurst and Whipple, 2006;Zhao et al, 2008).…”

Temporal constraints on glacial valley cross-profile evolution: Two Thumb Range, central Southern Alps, New Zealand

“…The studies found that 'U-shaped' valleys characteristic of present-day glaciated landscapes could take at least 100 kyr to evolve. Brocklehurst and Whipple (2006) and Braun et al (1999) built on this work, producing theoretical 2-D and 3-D numerical models of glacial landscape evolution. Kirkbride and Matthews (1997) attempted to bridge the gap between morphological studies and numerical models, introducing a method for estimating duration of glacial occupancy as a control on landscape hypsometry, by combining offshore oxygen isotope (δ 18 O) data with mapped glacier extents and tectonic uplift and transport rates.…”