The ikaite to calcite transformation: implications for palaeoclimate studies Bằng Vickers, ML, Vickers, M, Rickaby, REM, Wu, H, Bernasconi, SM, Ullmann, CV, Bohrmann, G, Spielhagen, RF, Kassens, H, Pagh Schultz, B, Alwmark, C, Thibault, N, Korte, C