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Etna 1971-2008 crystal and vesicle contents
Year | Sample | Location | Crystals (%) | Phenocrystals (%) | Microphenocrystals (%) | Number of vesicles | 2D_vesicularity (%) | Number Density (mm-3) | 1971 | ETN_1 | Core | 37.79 | 29.36 | 7.17 | 1144 | 8.16 | 172.27 | 1971 | ETN_2 | Crust | 37.02 | 19.59 | 14.89 | 422 | 19.77 | 19.10 | 1971 | ETN_3 | Frt core | 44.86 | 31.46 | 11.67 | 655 | 6.64 | 84.45 | 1971 | ETN_4 | Frt crust | 41.26 | 22.75 | 15.02 | 722 | 10.84 | 103.17 | 1979 | ETN_6 | Core 2(B) | 38.86 | 24.79 | 12.37 | 602 | 10.11 | 54.84 | 1979 | ETN_7 | Crust | 31.16 | 14.75 | 10.69 | 1013 | 25.18 | 93.73 | 1981 | ETN_10 | Crust Aa | 38.11 | 9.24 | 24.29 | 780 | 11.78 | 42.51 | 1981 | ETN_11 | Crust Phh | 40.20 | 6.50 | 23.57 | 381 | 28.08 | 25.78 | 1981 | ETN_9 | Core massive | 42.28 | 28.87 | 11.95 | 907 | 9.39 | 129.00 | 1983 | ETN_12 | Channel-core | 50.47 | 19.19 | 30.01 | 474 | 8.93 | 31.62 | 1983 | ETN_14 | Crust (above channel) | 46.03 | 10.57 | 28.49 | 3820 | 17.82 | 23.00 | 1985 | ETN_15 | Core | 40.87 | 24.21 | 13.70 | 767 | 14.65 | 23.79 | 1985 | ETN_16 | Crust | 33.50 | 17.03 | 12.38 | 667 | 20.51 | 58.78 | 1986-1987 | ETN_17 | Core | 39.13 | 18.85 | 18.49 | 911 | 9.28 | 124.98 | 1986-1987 | ETN_18 | Crust | 41.36 | 18.52 | 17.60 | 745 | 17.24 | 48.92 | 1989 | ETN_19 | Core | 48.99 | 11.22 | 34.01 | 744 | 11.58 | 88.24 | 1989 | ETN_20 | Crust | 44.98 | 9.08 | 31.62 | 515 | 13.72 | 25.47 | 1992 | ETN_21 | Core | 42.72 | 27.05 | 13.99 | 736 | 8.78 | 95.31 | 1992 | ETN_22 | Crust | 32.73 | 19.47 | 10.02 | 1117 | 25.43 | 46.74 | 2002 | ETN_27 | Crust | 42.79 | 16.08 | 21.51 | 628 | 19.12 | 35.02 | 2002 | ETN_29 | Core | 51.42 | 24.16 | 25.79 | 526 | 5.22 | 48.45 | 2002-2003 | ETN_30 | Core | 30.29 | 14.98 | 13.56 | 1003 | 11.29 | 77.22 | 2002-2003 | ETN_31 | Crust | 32.04 | 7.90 | 18.33 | 910 | 26.24 | 30.44 | 2007 | ETN_32 | Core | 37.76 | 12.23 | 16.60 | 506 | 34.36 | 39.40 | 2007 | ETN_33 | Crust | 34.89 | 7.48 | 18.24 | 2975 | 26.95 | 22.31 | 2008-2009 | ETN_35 | Upper unit-crust | 38.51 | 14.16 | 16.83 | 826 | 21.29 | 31.47 | 2008-2009 | ETN_36 | Core | 35.73 | 14.39 | 17.89 | 3019 | 19.64 | 68.24 | |