Glacial history of the Framnes Mountains, East Antarctica.

• Other Authors: GORE, DAMIAN (hasPrincipalInvestigator), GORE, DAMIAN (processor), Australian Antarctic Data Centre (publisher)
• Format: Dataset
• Language: unknown
• Published: Australian Antarctic Data Centre
• Subjects: climatologyMeteorologyAtmosphere; geoscientificInformation; inlandWaters; GLACIERS; EARTH SCIENCE; CRYOSPHERE; GLACIERS/ICE SHEETS; ICE DEPTH/THICKNESS; SNOW/ICE; GLACIATION; PALEOCLIMATE; LAND RECORDS; ALTITUDE; COSMOGENIC ISOTOPE DATING; ERRATIC; GEOLOGY; GLACIAL MAXIMUM; GRAVEL; ICE THICKNESS; LOCATION; NUMERICAL MODELING; PALAEOCLIMATE; ROCK; SALT; SAND; SCHMIDT HAMMER; SITE; WEATHERING; FIELD SURVEYS; CONTINENT > ANTARCTICA > Framnes Mountains; Kemp Land offshore islands; Welch Island; Mawson; Mt Henderson; North Masson Range; South Masson Range; Central Masson Range; Mt Hordern; GEOGRAPHIC REGION > POLAR; Casey Range; David Range; East Antarctica; Framnes; Hordern; Kemp Land; Masson Range; Antarc*; Antarctica; Ice Sheet
• Online Access: https://researchdata.ands.org.au/glacial-history-framnes-east-antarctica/699694; https://doi.org/10.4225/15/55DFBBEEE3F5C; https://data.aad.gov.au/metadata/records/ASAC_1332; http://nla.gov.au/nla.party-617536

Geological evidence from the Framnes Mountain, East Antarctica, will reveal changes in ice thickness from the Last Glacial Maximum 20,000 years ago to the present. A computer simulation of changes in ice thickness will show how the ice sheet interacts with climate and sea level, which is important for predicting future changes. Cosmogenic isotope samples were taken from 29 locations including Welch Island (1 sample), Mawson area (1 sample), Mt Henderson area (7 samples), and the northern (13 samples), central (3 samples) and southern (2 samples) Masson ranges. No samples were taken from the Casey Range or the David Range (with the exception of the Mt Hordern area (2 samples). Mapping of the glacial geology was undertaken - few trimlines were evident and moraines where present consisted dominantly of local lithologies. The glacial clasts sampled for cosmogenic isotope analysis were felsic erratics perched on or near to stable hilltop surfaces, with clear sky exposure (conditions ideal for cosmogenic isotope dating). Sediment analyses to support interpretations of the glacial history are being undertaken in 2004-2005. The fields in this dataset are: Site Location Altitude Erratic Rock Gravel Sand Salt Schmidt Hammer Weathering