Six heat flow (q) values for the area range from 1.4 to 2.0 HFU, with a mean value of 1.7 HFU. This part of Antarctica is characterized by late Cenozoic alkaline basaltic volcanism and uplift. In conjunction with the Dry Valley Drilling Project, the University of Wyoming conducted heat flow and basement radioactivity studies in the Ross Island- dry valley area of southern Victoria Land, Antarctica. International Nuclear Information System (INIS) Heat flow and radioactivity studies in the Ross Island- dry valley area, Antarctica and their tectonic implications An average topographic diffusivity for the Dry Valleys was determined to be 10M-5–10-4 m2 Based on analyses of repeat photographs, soil traps, and pebble transport distances, it was found that there is a large spatial variation in topographic diffusivities at least in the annual basis and that counter intuitively the highest topographic diffusivities are found in the alpine valleys that are located farther inland from the coast where the lowest topographic diffusivities were recorded. Currently little is known about the regolith transport that tends to eradicate and confound this record and regolith transport is itself an environmental indicator. The stability of ground surface and preservation of landforms that record past events and environments is of great importance as the geologic and climatic history is evaluated in the Dry Valleys of Antarctica. Regolith transport in the Dry Valleys of Antarctica
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