PRESERVATION OF GLACIOCHEMICAL TIME-SERIES IN SNOW AND ICE FROM THE PENNY ICE CAP, BAFFIN-ISLAND

A detailed investigation of major ion concentrations of snow and ice i n the summit region of Penny Ice Cap (PIG) was performed to determine the effects of summer melt on the glaciochemical time-series. While io n migration due to meltwater percolation makes it difficult to confide ntly count annual layers in the glaciochemical profiles, time-series o f these parameters do show good structure and a strong one year spectr al component, suggesting that annual to biannual signals are preserved in PIC glaciochemical records.