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Title: Seasonal variations of chemical constituents in annual layers of Greenland deep ice deposits
Authors: State University of New York at Buffalo. Dept. of Earth Sciences.
National Science Foundation (U.S.). Office of Polar Programs.
Langway, Chester C., 1929-
Cragin, James H.
Klouda, G. A.
Herron, M.
Keywords: Annual accumulations
Glacier ice
Ice cap
Ice sheet
Ice dating
Chemical analysis
Ice cores
Ice coring
Core drilling
Seasonal variations
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 347.
Description: Research Report
Abstract: Chemical analysis of century-old ice from continuous 5 to 7 year intervals of three ice cores from south and central Greenland (Dye 3, Milcent and Crete) show maximum concentrations of Na, Mg,Ca, K, and Al during early spring and minimum concentrations during late summer and early fall. Peak spring values are as much as 10 times greater than fall values. Because of the large seasonal chemical variations, samples used for depth-age or annual deposition rate studies must represent accumulation from exactly one year or whole multiples of a year. The seasonal chemical variations seem promising as a new method of defining annual layers and thus dating old ice cores.
Appears in Collections:CRREL Research Report

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