Physical Sciences and Mathematics Commons^™

The Glaciochemistry Of Snowpits From Quelccaya Ice Cap, Peru, 1982, W. Berry Lyons, Paul Andrew Mayewski, Lonnie G. Thompson, Boyd Allen Iii

Earth Science Faculty Scholarship

We present glaciochemical data from a pilot study of two snow-pits from Quelccaya ice cap, Peruvian Andes. These are the first samples to be analyzed from Quelccaya for nitrate and sulfate by ion chromatography (IC), for nitrate-plus-nitrite, reactive silicate and reactive iron by colorimetry, and for sodium by atomic absorption spectrophotometry. The 3 m pits used in this study represent a one year record of mass accumulation and the 29 samples collected provide the first glaciochemical data from this area which can be compared with glaciochemical studies from other locations.

Reactive iron, reactive silicate and sodium, and the profiles of …

A Preliminary Assessment Of The Potential Application Of Glaciochemical Investigations On Heard Island, South Indian Ocean, Mary Jo Spencer, Paul Andrew Mayewski, William Berry Lyons, Martin R. Hendy

Earth Science Faculty Scholarship

Analyses of fluoride, chloride, sodium, sulfate, bromide. nitrate, and iron from a 3 m snow pit on Heard Island, collected at an elevation of 2450, m are used to assess the potential of glaciochemical studies on Heard Island glaciers. Sources Cor the chemical species are identified and, in particular, chloride, sodium, and sulCate are found to be useful seasonal indication. The total record measured is believed to be less than one mass-balance year.