Table 1. Dust deposition fluxes retrieved from ice cores. Site Dust Concentration Dust Concentration Dust Concentration Reference Method Ice Accum. Rate Ice Accum. Rate Ice Accum. Rate Reference Dust Deposition (g/m2/yr) Dust Deposition (g/m2/yr) (m w.eq./yr) (m w.eq./yr) Current LGM/ Current LGM/ Current LGM/ (ng/g) Current Current Current Greenland: "Camp Century (77°N, 61°W)" 125 11 "Cragin et al., 1977" mass 0.35 0.2 "Johnsen and Dansgaard, 1992" 0.04 2 12 "Thompson and Mosley-Thompson, 1981" number "Dye 3 (65°N, 44°W)" 50 5-60 "Hammer et al., 1985" mass* 0.45 0.28 "Johnsen and Dansgaard, 1992" 0.02 1.5-17 "Renland (71°N, 27°W)" 133 8 "Hansson, 1994" mass* 0.46 0.22 "Johnsen and Dansgaard, 1992" 0.06 2 "GRIP, Summit (73°N, 38°W)" 38 (158) & "Steffensen, 1997" mass* 0.21 0.43 "Dahl-Jensen et al., 1993" 0.008 (68) "GISP2, Summit (73°N, 38°W)" 0.22 0.25 "Cuffey and Clow, 1997" Antarctica: "Byrd (80°S, 120°W)" 8 "Cragin et al., 1977" mass 0.16 0.5 "Lorius, 1989" 0.003 4 3 "Thompson and Mosley-Thompson, 1981" number 1.5 "Dome C (75°S, 124°E)" 19 7 "Thompson and Mosley-Thompson, 1981" number 0.034 0.5 "Lorius, 1989" 3 12 "Petit et al., 1981" number 6 23 "Petit et al., 1981" mass* 12 34 21 "Petit et al., 1981" mass 0.001 11 26 17 "Royer et al., 1983" mass* 0.0009 8.5 "Vostok (78°S, 107°E)" 30 37 De Angelis et al. 1984 mass 0.023 0.5 "Lorius, 1989" 0.0007 18.5 "Petit et al., 1990" mass 15 Other: "Devon, Canada (67°N, 66°W) " 20-30 "Fisher, 1979" number 0.22 0.33 "Paterson and Hammer, 1987" 7-10 "Dunde, China (38°N, 97°W)" 1.5-4 "Thompson et al., 1989. " number 0.4 >1 "Thompson et al., 1989" >1.5-4 "Guliya, China (35°N, 82°W)" <1 "Thompson et al., 1997" number 0.2 0.2 "Thompson et al., 1997" <0.2 "Huascarán, Peru (9°S, 78°W)" 160 200 "Thompson et al., 1995" number 1.3 <1 "Thompson et al., 1995" 0.2 <200 "Sajama, Bolivia (18°S, 69°W)" "Thompson, pers. comm. 1998 " number 0.12 Notes: "& LGM/Current ratio calculated with the highest peak in the LGM period (at approx. 23-24 kyr), not LGM average." mass. Aluminum concentration measured by means of atomic absorption. Dust concentration calculated assuming 8% Al in terrigenous material. mass*. Particle mass concentration by means of laser light scattering measurements. number. Particle number concentration by means of Coulter counter measurements.