1 Appendix 3: Normalized Analyses of Samples in the North Verde Volcanic Field in Weight Percent and CIPW Norms in Weight Percent. Sample HM-W US-77 S182-1 S185-1 S186-1 S187-1 S190-1 S191-1 Name olivine hypersthene hypersthene monzo- nepheline nepheline nepheline nepheline mela- mugearite benmoreite diorite hawaiite mugearite hawaiite hawaiite nephelinite* Field dike flow plug plug? flow dike flow flow I.R.S. VAS VTS VTS VTS VTS VTS VTS VTS SiO2 41.96 54.48 56.22 53.76 49.48 51.80 48.97 49.11 TiO2 1.76 1.19 0.99 2.18 2.08 1.54 1.75 1.76 Al2O3 12.22 18.19 17.67 16.77 13.98 16.32 14.11 14.21 FeO 10.84 7.63 7.07 8.33 11.35 9.22 10.37 10.33 MnO 0.19 0.14 0.14 0.14 0.17 0.15 0.16 0.16 MgO 13.93 2.99 2.54 3.07 7.57 4.79 8.96 8.59 CaO 12.65 7.40 6.72 6.73 9.20 9.91 9.54 9.76 Na2O 3.47 4.62 5.30 4.56 4.37 3.99 3.87 3.78 K2O 1.54 2.56 2.64 3.23 1.01 1.70 1.49 1.53 P2O5 1.44 0.80 0.70 1.25 0.80 0.59 0.79 0.79 Total 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 Mg# 69.64 41.12 39.08 39.62 54.34 48.10 60.65 59.74 %AN 100.00 33.96 25.88 27.80 31.30 37.73 38.08 38.79 Q 0.00 0.00 0.00 0.24 0.00 0.00 0.00 0.00 or 0.67 15.06 15.42 19.08 5.91 10.03 8.70 8.95 ab 0.10 41.25 47.14 40.89 33.96 35.54 26.86 27.00 an 12.86 21.21 16.46 15.74 15.47 21.53 16.52 17.11 lc 6.52 0.00 0.00 0.00 0.00 0.00 0.00 0.00 ne 18.15 0.00 0.00 0.00 2.99 0.15 4.46 3.93 di 31.17 8.10 9.63 7.55 19.73 18.93 20.09 20.56 hy 0.00 6.59 3.87 6.94 0.00 0.00 0.00 0.00 ol 21.94 1.64 2.05 0.00 13.60 7.23 15.91 14.97 mt 3.36 2.85 2.62 3.91 3.79 3.22 3.42 3.42 il 2.39 1.65 1.36 3.03 2.88 2.13 2.41 2.42 ap 2.93 1.65 1.45 2.61 1.66 1.23 1.64 1.63 Mg#: 100MgO/(MgO+FeO), where the oxides are first divided by their molecular weights. %AN: 100an/(an+ab) Notes: Aphanitic rocks are assigned volcanic names. Phaneritic rocks are assigned plutonic names. *olivine melanephelinite is based on CIPW norm; basanitic nephelinite is based on mode. **monchiquite is based on mode; basanite is based on chemistry. I.R.S.: Igneous-Rock Series: VAS: Verde alkaline series VTS: Verde transitional series VSS: Verde subalkaline series CIPW norms calculated by Igpet For Windows (M.J. Carr, 1994) with FeO/Fe2O3 adjusted by the formula used by Irvine and Baragar (1971). Abbreviations of CIPW norm minerals: ab: albite an: anorthite ap: apatite C: corundum di: diopside hem: hematite hy: hypersthene il: ilmenite lc: leucite mt: magnetite ne: nepheline ol: olivine or: orthoclase Q: quartz 2 Sample S192-1 S193-1 S194-1 S196-1 S198-1 S199-1 S200-1 S201-1 Name nepheline hypersthene basaltic hypersthene hypersthene nepheline basaltic basaltic hawaiite hawaiite andesite mugearite shoshonite mugearite andesite andesite Field plug flow flow flow dike dike dike dike I.R.S. VTS VTS VSS VTS VTS VTS VSS VSS SiO2 50.07 50.63 53.77 53.10 51.88 51.45 52.89 53.44 TiO2 1.97 2.02 1.54 1.49 1.57 1.52 1.48 1.53 Al2O3 14.45 15.05 15.37 16.36 16.84 16.80 16.25 16.34 FeO 10.25 11.47 9.12 8.22 9.18 8.87 9.42 9.55 MnO 0.16 0.16 0.15 0.17 0.16 0.14 0.18 0.15 MgO 7.47 6.50 5.69 4.92 4.94 4.49 4.84 4.47 CaO 8.53 8.64 9.14 9.78 8.93 9.72 9.44 9.08 Na2O 4.32 3.77 3.39 3.82 3.81 4.39 3.74 3.74 K2O 2.01 1.25 1.43 1.71 2.06 1.97 1.36 1.32 P2O5 0.78 0.53 0.39 0.43 0.64 0.63 0.42 0.38 Total 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 Mg# 56.52 50.26 52.65 51.66 48.96 47.44 47.81 45.48 %AN 31.52 37.71 42.57 39.60 39.93 38.36 41.23 41.62 Q 0.00 0.00 2.63 0.00 0.00 0.00 0.61 1.99 or 11.73 7.36 8.48 10.08 12.14 11.60 8.04 7.81 ab 30.30 33.85 30.44 34.16 34.17 32.44 33.60 33.67 an 13.95 20.49 22.56 22.40 22.71 20.19 23.57 24.00 ne 4.86 0.00 0.00 0.00 0.00 4.04 0.00 0.00 di 18.30 15.18 16.26 18.52 13.86 18.90 16.47 14.97 hy 0.00 7.60 13.46 8.15 4.20 0.00 11.58 11.38 ol 12.91 7.85 0.00 0.58 6.13 6.22 0.00 0.00 mt 3.64 3.75 3.19 3.13 3.28 3.18 3.18 3.23 il 2.71 2.82 2.15 2.07 2.18 2.11 2.07 2.14 ap 1.60 1.11 0.82 0.90 1.34 1.32 0.87 0.80 Sample S203-1 S204-1 S204-2 S205-1 S205-2 S205-3 S209-1 S210-5 Name nepheline nepheline syenitic feldspar nepheline feldspar basanitic* nepheline shoshonite monzo- urtite ijolite monzo- ijolite nephelinite monzo- syenite syenite syenite Field flow dike dike sheet sheet sheet dike sheet margin interior bottom middle top I.R.S. VTS VAS VAS VAS VAS VAS VAS VAS SiO2 51.79 47.27 45.60 46.39 48.84 44.00 43.66 50.45 TiO2 1.52 1.28 1.67 1.97 0.81 1.88 1.94 1.01 Al2O3 16.45 21.27 20.43 18.90 20.52 18.95 11.84 23.15 FeO 8.97 8.52 9.10 10.06 9.58 9.58 11.45 5.25 MnO 0.15 0.18 0.18 0.19 0.23 0.17 0.19 0.10 MgO 4.86 2.73 3.29 3.77 2.67 4.40 13.52 2.97 CaO 9.73 7.48 9.43 10.29 6.81 10.89 12.28 6.88 Na2O 3.94 5.47 5.60 3.44 5.31 5.60 2.97 5.30 K2O 1.96 4.86 3.48 3.65 4.57 3.06 1.26 4.15 P2O5 0.63 0.94 1.21 1.33 0.66 1.47 0.89 0.72 Total 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 Mg# 49.17 36.35 39.19 40.08 33.22 45.03 67.83 50.24 %AN 38.28 77.46 75.99 68.90 61.32 94.31 83.13 56.07 or 11.57 28.13 20.19 21.62 26.53 17.72 7.27 23.86 ab 34.38 5.46 6.31 11.46 11.58 1.04 3.03 20.70 an 21.33 18.75 19.96 25.38 18.36 17.22 14.93 26.42 ne 0.53 25.56 25.82 11.68 21.19 28.93 13.87 15.34 di 18.14 9.28 14.52 13.64 8.52 21.08 31.21 1.77 ol 7.41 6.19 5.07 6.94 8.84 4.88 21.68 6.50 mt 3.21 2.97 3.36 3.76 2.52 3.56 3.53 2.57 il 2.11 1.75 2.28 2.75 1.11 2.56 2.65 1.38 ap 1.32 1.92 2.49 2.78 1.35 3.02 1.83 1.47 3 Sample S210-7 S211-1 S212-1 S213-1 S214-1 S216-1 S218-1 S220-1 Name feldspar basaltic hypersthene hypersthene basaltic basaltic basaltic hypersthene ijolite andesite shoshonite mugearite andesite andesite andesite benmoreite Field sheet flow flow flow flow flow flow plug I.R.S. VAS VSS VTS VTS VSS VSS VSS VTS SiO2 45.19 53.41 54.10 54.37 52.98 52.93 52.62 56.13 TiO2 2.09 1.57 1.27 1.23 1.47 1.48 1.53 0.99 Al2O3 16.89 15.80 17.73 17.62 14.57 14.57 14.62 17.47 FeO 9.35 9.50 7.93 8.08 9.95 9.91 9.85 6.92 MnO 0.15 0.16 0.15 0.16 0.15 0.15 0.15 0.14 MgO 5.47 5.06 3.27 3.04 7.16 7.18 7.21 2.54 CaO 13.05 9.17 7.72 7.47 8.72 8.73 8.62 6.84 Na2O 3.63 3.62 4.53 4.69 3.24 3.12 3.37 5.13 K2O 2.26 1.30 2.57 2.57 1.38 1.52 1.59 3.13 P2O5 1.92 0.41 0.72 0.77 0.38 0.41 0.45 0.71 Total 100.00 100.00 100.00 100.00 100.00 100.00 100.00 100.00 Mg# 51.05 48.72 42.41 40.19 56.23 56.40 56.63 39.52 %AN 67.25 41.44 33.43 31.58 42.07 43.07 39.89 25.02 Q 0.00 2.07 0.00 0.00 0.78 0.90 0.00 0.00 or 13.34 7.72 15.11 15.08 8.12 8.98 9.36 18.32 ab 11.21 32.61 40.49 41.92 29.09 28.04 30.17 45.64 an 23.02 23.07 20.33 19.35 21.13 21.22 20.02 15.23 ne 12.79 0.00 0.00 0.00 0.00 0.00 0.00 0.00 di 23.19 15.86 10.47 9.99 15.70 15.50 15.78 11.04 hy 0.00 12.32 3.86 4.11 19.21 19.28 17.02 0.28 ol 5.78 0.00 3.54 3.32 0.00 0.00 1.42 4.06 mt 3.76 3.28 2.93 2.91 3.14 3.16 3.18 2.59 il 2.91 2.20 1.76 1.71 2.04 2.06 2.12 1.37 ap 4.01 0.87 1.50 1.61 0.79 0.86 0.93 1.46 Sample S222-1 S222-2 S224-1H S224-1D S224-2 S227-3 S229-1 S232-1 Name hypersthene monzo- basaltic quartz micro- basaltic nepheline syenite mugearite diorite andesite monzonite diorite andesite hawaiite Field dike small dike segregation small dike dike small dike dike dike I.R.S.