Chemical Profile of the Ross Ice Shelf at Little America V, Antarctica.

• Main Authors: Langway,C. C. , Jr., Herron,M., Cragin,J. H.
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
• Format: Text
• Language: English
• Published: 1974
• Subjects: Geology; Geochemistry and Mineralogy; Snow; Ice and Permafrost; *Antarctic regions; *Sea ice; Cores; Glaciers; Concentration(Composition); Sodium; Potassium; Magnesium; Calcium; Chemical analysis; Antarctic; Byrd; Little America; Little America V; Marie Byrd Land; Ross Ice Shelf; Antarc*; Antarctica; Ice; ice core; Ice Shelf; permafrost; Sea ice
• Online Access: http://www.dtic.mil/docs/citations/AD0774196; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0774196

Measurements of the concentrations of Na(+), K(+), Mg(2+), and Ca(2+) were made on 28 samples from the 255-m-deep ice core from Little America V. All concentrations decrease sharply with depth from the firn-ice transition at 52 m to somewhere between 125 m and 150 m. From 150 m to 250 m the cationic concentrations are relatively constant. This is interpreted to indicate that the ice above 125 m fell as snow on the Ross Ice Shelf and that ice below 150 m originated inland on Marie Byrd Land. (Author)