Surface Exposure Geochronology Using Cosmogenic Nuclides: Applications in Antarctic Glacial Geology

• Main Author: Brook, Edward J.
• Other Authors: WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
• Format: Text
• Language: English
• Published: 1994
• Subjects: Geology; Geochemistry and Mineralogy; *GEOLOGIC AGE DETERMINATION; *ANTARCTIC REGIONS; *GLACIAL DEPOSITS; THESES; ROCK; CYCLES; DEPOSITS; DRIFT; ICE; ALUMINUM; WISCONSIN; NUCLIDES; ROSS SEA; GLACIERS; SEA ICE; ISOTOPES; HELIUM; BERYLLIUM; OCEANS; SEA LEVEL; VALLEYS; MCMURDO SOUND(ANTARCTICA); Antarctic; Ross Sea; McMurdo Sound; East Antarctic Ice Sheet; Taylor Glacier; Antarc*; Antarctica; Ice Sheet; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/ADA279392; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA279392

Cosmogenic 3He, 26 Al, and 10Be were measured in Antarctic glacial deposits in the McMurdo Sound-Dry Valleys region to constrain surface exposure ages. Moraines deposited by the Taylor glacier, an outlet glacier of the East Antarctic Ice Sheet, have exposure ages from approx. 120 kyr to 2myr. 10Be a...