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Title: Soluble particulates in ice from Site 2, Greenland
Authors: University of Nevada System. Desert Research Institute. Division of Atmospheric Sciences.
Dartmouth College. Department of Earth Sciences
National Science Foundation (U.S.). Office of Polar Programs.
Linkletter, George O. (George Onderdonk), 1943-
Keywords: Glaciology
Land ice
Ice cores
Particle density (concentration)
Particle size distribution
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 188.
Description: Special Report
Abstract: Collections of soluble and insoluble particles made by sublimation techniques from small pieces of polar ice are well suited for microscopic and microchemical analysis. Examination of an 89-cm vertical profile of a polar ice core from a depth of 100 m at Site 2, Greenland, indicated no seasonal cycle in the abundance of particles > 2 μm in diameter. Microchemical spot tests made on individual particles indicated the presence of NH4+, K+, Ca++, Na+, and Cl-. Whole filter spot tests for K+ indicated no systematic variation in the concentration of potassium-bearing particles. Approximately 4% of the particles > 2 μm in the ice studied were soluble salts of Na+, K+, Mg++, and Ca++. The concentrations of Na+, K+, Mg++, and Ca++ were measured in melted fractions of the same core profile by atomic absorption spectrophotometry. Variation of the K+ concentration and variation of the number of potassium-bearing particles per gram of ice have a correlation coefficient of 0.93 over the 2 and 1/2 years of accumulation studied.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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