GRIP Mineralogy of atmospheric micro-particles REFERENCES: Maggi, V. 1997. Mineralogy of atmospheric microparticles deposited along the Greenland Ice Core Project ice core. Journal of Geophysical Research 102:26725-26734. DATA DESCRIPTION: This file contains average values of the mineralogies listed in the file mineral1.dat as a function of age in the GRIP ice core. TS = Total Silicates AlS = Aluminum Silicates Qtz = Quartz Clay = Clay Minerals Mi = Mica Mineral Fds = Feldspars Fem = Femic Minerals HO = (Hydr)Oxides K/C = Kaolinite/Clay Ratio O/Q = Oxides/Quartz Ratio DATA: Error Bars (±): Est. age (yr BP) Top Bottom TS Als Qtz Clay Mi Fds Fem HO K/C O/Q Est. age (yr BP) Top Bottom TS Als Qtz Clay Mi Fds Fem HO K/C O/Q Last Glacial Max. 15000 25000 70.2 46.93 23.8 14.8 18.23 16.47 3.01 0.95 0.38 0.04 Last Glacial Max. 15000 25000 8.71 6.13 2.96 1.79 2.26 2.04 0.37 0.12 0.076 0.008 Fast var. (warm) 25000 57000 59.35 19.96 25.18 11.73 13.78 8.67 3.06 11.95 2.13 0.47 Fast var. (warm) 25000 57000 9.2 3.24 3.9 1.82 2.14 1.34 0.47 1.85 0.42 0.01 Fast var. (cold) 25000 57000 62.5 51.33 27.9 18 23.53 14.82 1.19 2.71 0.53 0.09 Fast var. (cold) 25000 57000 10.41 9.39 4.65 3 3.92 2.47 0.2 0.45 0.1 0.018 Stage 4 57000 65000 62.72 44.97 27.07 17.16 17.92 12.48 5.22 5.7 0.64 0.21 Stage 4 57000 65000 8.18 6.14 3.53 2.24 1.63 1.64 0.68 0.62 0.12 0.042 Stages 5a-d 65000 113000 59.23 34.89 24.29 15.16 20.63 8.68 5.27 7.44 0.7 0.3 Stages 5a-d 65000 113000 8.25 5.24 3.38 2.11 1.21 1.18 0.73 0.7 0.14 0.06 Stages 5e1-4 113000 126000 48.09 30.45 42.04 12.84 8.73 11.26 3.46 9.4 1.69 0.22 Stages 5e1-4 113000 126000 6.35 4.38 5.55 1.7 1.49 1.65 0.46 0.6 0.34 0.044 Stage 5e5 126000 135000 43.72 23.63 5.97 12.56 7.81 3.83 14.46 30.94 15.8 5.18 Stage 5e5 126000 135000 6.23 3.45 0.85 1.79 0.55 0.48 2.06 5.9 3.18 1.3