Thermotectonic history of Mt Logan, Yukon Territory, Canada: implications of multiple episodes of middle to late Cenozoic denudation

Mountain uplift and the glaciation of North America – a sensitivity study

“…2). These studies constitute a regional scale database that indicates a significant acceleration of rock exhumation rates during the Late Miocene (Reiners et al, 2002;Parrish, 1983;O'Sullivan and Parrish, 1995;Fitzgerald et al, 1995;O'Sullivan and Currie, 1996;Farley et al, 2001). On its own such information should be interpreted in terms of surface uplift with caution.…”

Persistent long-term ( c. 24 Ma) exhumation in the Eastern Alaska Range constrained by stacked thermochronology

“…Little et al 2005;Yin 2006;Tricart et al 2007;Seeber et al 2010). Thus, orogen-scale interpretations of tectonic processes based on thermochronological analyses of a single vertical transect (Fitzgerald et al 1993;O'Sullivan & Currie 1996;Haeussler et al 2008) or a single rock sample (Richter et al 1990) may not capture the spatial and temporal variability inherent to broad-scale orogenesis. Although spatially restricted sampling for thermochronology can provide first-order information on the timing of orogenesis, can the total exhumation history of an orogen be constrained by such a practice?…”

“…Thermochronological research on the Neogene tectonic history of southern Alaska has led to the interpretation of exhumation pulses at approximately 25,23,20,18,16,11,6, 4 and 1 Ma (Plafker et al 1992;Fitzgerald et al 1995;O'Sullivan & Currie 1996;Berger et al 2008;Enkelmann et al 2008;Haeussler et al 2008;Spotila & Berger 2010). Palaeo-environmental analysis of Alaska's sedimentary basins also suggests that pulses of exhumation occurred during the Miocene -present (Lagoe et al 1993;Thoms 2000;Ridgway et al 2007;Haeussler et al 2008;Finzel et al 2009).…”

“…We use the same general geothermal gradient, approximately 30 8C/km, used in many of the exhumation studies performed in southern Alaska to calculate exhumation rate (O'Sullivan & Currie 1996;Haeussler et al 2008;McAleer et al 2009;Benowitz et al 2011a). This allows direct comparison of exhumation rates between southern Alaska regional exhumation studies.…”

Seismic and non-seismic influences on coastal change in Alaska--Fieldtrip guide and conference abstracts, 5th International Conference of IGCP 588

“…Chapter 4.3 O'Sullivan et al (1995); O'Sullivan and Currie (1996);Spotila et al (2004);; Meigs et al (2008);McAleer et al (2009);Enkelmann et al (2010). Headley et al, 2013 Enkelmann et al (2008Enkelmann et al ( , 2009Enkelmann et al ( , 2010.…”