Description
Summary:The Transantarctic Mountains (TAM) were one of the first regions where apatite fission track (AFT) thermochronology was applied routinely to study exhumation processes and long term landscape evolution. Pioneering publications from the region introduced or refined interpretation concepts of thermochronological data such as the break in slope in vertical age profiles as qualitative marker for the onset of accelerated rock cooling. New AFT data were compiled from vertical profiles in the Eisenhower Range, northern TAM, and compared with published data. Samples originally examined by population technique were re-analysed via the external detector technique. AFT ages increase from 32±2 Ma at an elevation of 220 m to 175±14 Ma at 2380 m. Geological evidence and thermal history modeling of the AFT data require Jurassic to Late Eocene reheating of the samples and an onset of cooling at ~35 - 30 Ma. This requires the deposition of a ~3 to 3.5 km thick sedimentary sequence on the granitic basement subsequent to ... : Supplement to: Prenzel, Jannis; Lisker, Frank; Balestrieri, Maria Laura; Läufer, Andreas; Spiegel, Cornelia (2013): The Eisenhower Range, Transantarctic Mountains: Evaluation of qualitative interpretation concepts of thermochronological data. Chemical Geology, 352, 176-187 ...