updated 10/28/2005 Todd Bowers "Updated min ages, and fixed georef" updated 8/18/2005 Todd Bowers updated 3/1/2005 Todd Bowers updated 2/11/2005 keith georef data 2002-002168 TI Hydrous phase equilibria of a Mexican high-silica andesite; a candidate for a mantle origin?. AU Blatter-Dawnika-L; Carmichael-Ian-S-E AF "University of California at Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States" SO "Geochimica et Cosmochimica Acta. 65; 21, Special issue, Pages 4043-4065. 2001." NT Special issue dedicated to Hal Helgeson PB "Pergamon. Oxford, International. 2001." CP International PY 2001 LA English AB Deleted in this version DE absolute-age; alkaline-earth-metals; amphibole-group; andesites-; Ar-Ar; Cenozoic-; chain-silicates; chromium-; clinoamphibole-; dacites-; dates-; electron-probe-data; experimental-studies; feldspar-group; framework-silicates; geochemistry-; Holocene-; hornblende-; hydration-; igneous-rocks; laboratory-studies; lava-; liquid-phase; magnesium-; magnesium-oxide; mantle-; melting-; metals-; Mexican-volcanic-belt; Mexico-; Mexico-state; mineral-assemblages; nickel-; P-T-conditions; partial-melting; phase-equilibria; phenocrysts-; plagioclase-; Pleistocene-; Quaternary-; silica-; silicates-; siliceous-composition; spectra-; Valle-de-Bravo-Mexico; volcanic-rocks; water-; X-ray-fluorescence-spectra CC 02A-General-geochemistry; 05A-Igneous-and-metamorphic-petrology DT Serial BL Analytic MC LAT| N190000; N190000; LONG: W1000000; W1000000. IL "Refs 34; illus. incl. 12 tables, geol. sketch map." RF "GeoRef, Copyright 2002, American Geological Institute. Reference includes data from CAPCAS, Elsevier Scientific Publishers, Amsterdam, Netherlands" IS 0016-7037 CO GCACAK AN 2002-002168 UD 200201 Sample Data Item Alt_Sample_Name Location Material Rock_type Rock_name Geologic_Age Geologic_Age_Prefix Age Age_Min Age_Max Age_Error TMVB_Episode Long Lat Dist. to trench Laboratory SiO2 TiO2 Al2O3 Fe2O3 Fe0 Fe2O3t FeOt Mn0 MgO CaO Na2O K2O P2O5 LOI H2O+ H2O- CO2 Tot. S calc DIFF 100-suma Li Be B Sc V Cr Co Ni Cu Zn Ga Rb Sr Y Zr Nb Mo Sn Sb Cs Ba La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Au Tl Pb Th U Rb87/Sr86 Sr87/Sr86 147Sm/144Nd Nd144/Nd143 epsilon Nd 206Pb/204Pb 207Pb/204Pb 208Pb/204Pb D18O Observaciones Reference GeoRef_# State Units MA MA MA MA DD DD KM WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% WT% PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM PPM per mill Method 2 2 2 2 2 2 2 3 3 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 4 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 4 4 4 4 4 4 4 4 Sample Name Z-357 51 "NW of Colorines, Mex." whole rock volcanic Dacite 0.31 0 3 1 -100.23 19.19 282.1695805 UC Berkeley Nb by ICP-MS at WSU 63.93 0.63 15.48 0.64 3.02 0.05 3.49 5.19 3.87 1.91 0.14 0.82 0.28 99.45 99.45 0.55 90 128 104 11 57 20 27 915 16 126 8 385 16 32 18 7 Blatter & Carmichael 2001 2001-072942 Mexico Z-385 52 "Colorines, Mex." whole rock volcanic Andesite 0.22 0 3 1 -100.21 19.18 281.910229 UC Berkeley Nb by ICP-MS at WSU 63.61 0.62 16.04 1.06 2.83 0.06 3.67 5.04 3.68 1.91 0.13 0.55 0.39 99.59 99.59 0.41 82 154 82 19 55 20 31 793 18 132 6 380 23 31 17 8 Blatter & Carmichael 2001 2001-072942 Mexico Z-342 53 Zitacuaro-Valle de Bravo whole rock volcanic Andesite 0.022 0 3 0.004 1 -100.25 19.19 281.3994318 UC Berkeley Nb by ICP-MS at WSU 62.17 0.71 15.49 0.67 3.83 0.07 5.59 5.3 3.04 1.67 0.16 0.3 0.08 99.08 99.08 0.92 108 236 162 17 56 17 28 644 14 119 6 382 13 27 18 8 Blatter & Carmichael 2001; Blatter et al. 2001 Multi Papers Mexico Z-346 54 Zitacuaro-Valle de Bravo whole rock volcanic Andesite 0.313 0 3 0.006 1 -100.25 19.19 281.3994318 UC Berkeley Nb by ICP-MS at WSU 63.5 0.6 16 3.9 0.1 3.6 5.5 4.3 1.7 0.1 99.3 99.3 0.7 94 111 73 6 43 20 22 855 14 100 4 371 11 25 15 7 Blatter & Carmichael 2001; Blatter et al. 2001 Multi Papers Mexico Z-348 55 "Colorines, Mex." whole rock volcanic Andesite 0.37 0 3 0.03 1 -100.192 19.192 283.8394023 UC Berkeley Nb by ICP-MS at WSU 62.04 0.67 15.26 0.83 3.86 0.08 4.48 5.47 3.99 1.86 0.12 0.69 0.22 99.57 99.57 0.43 124 144 59 19 57 18 30 544 18 125 5 376 14 25 13 7 Blatter & Carmichael 2001; Blatter et al. 2001 Multi Papers Mexico Z-386 56 "Colorines, Mex." whole rock volcanic Andesite 0.35 0 3 0.13 1 -100.22 19.17 280.4952469 UC Berkeley Nb by ICP-MS at WSU 63.74 0.57 15.89 1.55 2.67 0.07 3.63 5.12 4.11 1.79 0.14 0.3 0.15 99.73 99.73 0.27 102 142 89 12 60 21 27 720 17 136 3 374 17 33 15 8 Blatter & Carmichael 2001; Blatter et al. 2001 Multi Papers Mexico Z-388 57 Nvo. Santo Tomas whole rock volcanic Andesite 0.005 0 3 0.002 1 -100.258 19.18 280.0615857 UC Berkeley Nb by ICP-MS at WSU 61.94 0.67 15.97 1.25 3.14 0.07 5.69 5.03 3.13 1.47 0.16 0.5 0.05 99.07 99.07 0.93 96 257 176 22 62 18 31 753 14 130 7 393 14 28 20 9 Blatter & Carmichael 2001; Blatter et al. 2001 Multi Papers Mexico MAS-907 58 Zitacuaro-Valle de Bravo whole rock volcanic Dacite Quaternary 1 3 1 -100.18 19.43 308.8080146 UC Berkeley Nb by ICP-MS at WSU 60.67 0.63 17.23 1.39 2.26 0.06 1.87 4.2 3.98 1.81 0.15 4.72 1.78 99.68 100.75 -0.75 90 64 43 8 79 36 659 15 128 4.61 548 15 35 Blatter et al. 2001 2001-072942 Michoacan MAS-910 59 "S of Suchitepec, Mex." whole rock volcanic Dacite Quaternary 1 3 1 -100.23 19.46 309.974416 UC Berkeley Nb by ICP-MS at WSU 65.4 0.64 15.87 1.33 2.34 0.06 1.9 4.1 4.64 2.2 0.15 0.66 0.15 99.44 99.44 0.56 78 29 16 6 52 20 789 16 114 4.41 519 19 32 Blatter et al. 2001 2001-072942 Michoacan MAS-913 60 Zitacuaro-Valle de Bravo whole rock volcanic Basalt high-TiO2 0.26 0 3 0.02 1 -100.28 19.35 296.7234855 UC Berkeley Nb by ICP-MS at WSU 50.95 1.69 17.91 2.43 6.46 0.14 5.74 8.22 4.13 1.16 0.29 0.42 0.02 99.56 99.56 0.44 180 48 46 27 87 17 563 22 169 12.7 255 17 35 Blatter et al. 2001 2001-072942 Michoacan Z-101 61 "N of Villa de Allende, Mex." whole rock volcanic Dacite Quaternary 1 3 1 -100.165 19.425 308.8703901 UC Berkeley Nb by ICP-MS at WSU 64.9 0.59 18.1 3.7 0.07 1.4 3.7 3.5 2 0.16 98.12 98.12 1.88 57 22 15 8 47 19 39 597 15 106 17 479 15 25 9 Blatter et al. 2001 2001-072942 Michoacan Z-104 62 "W of Zitacuaro, Mich." whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.44 19.47 302.9445913 UC Berkeley Nb by ICP-MS at WSU 55.56 1.3 16.93 7.92 0.12 4.83 7.31 3.76 1.53 0.36 99.62 99.62 0.38 155 115 47 31 85 21 23 639 25 204 13 420 28 50 26 5 10 Blatter et al. 2001 2001-072942 Michoacan Z-105 63 "NW Presa el Bosque, Mich." whole rock volcanic Shoshonite Pliocene 3 5 2 -100.456 19.436 298.8279655 UC Berkeley Nb by ICP-MS at WSU 55.2 1 15.3 4.05 2.76 0.1 5.8 7.4 3.5 3.1 0.4 98.61 98.61 1.39 147 378 171 55 80 71 816 20 290 3.97 709 31 60 Blatter et al. 2001 2001-072942 Michoacan Z-107 64 "NW Presa el Bosque, Mich." whole rock volcanic Shoshonite Pliocene 3 5 2 -100.425 19.42 298.3676175 UC Berkeley Nb by ICP-MS at WSU 55.6 1 15.5 2.28 4.25 0.1 6.5 7 4.3 2.5 0.3 99.33 99.33 0.67 167 332 160 49 74 56 727 17 220 3.88 522 19 52 Blatter et al. 2001 2001-072942 Michoacan Z-108 65 N presa el Bosque whole rock volcanic Shoshonite Pliocene 3 5 2 -100.41 19.41 297.9125067 UC Berkeley Nb by ICP-MS at WSU 56 1 15.4 6.2 0.1 5.5 6.9 3.5 2.8 0.4 97.8 97.8 2.2 122 332 163 40 78 20 64 771 25 255 4 700 30 52 32 3 7 Blatter et al. 2001 2001-072942 Michoacan Z-121 66 "NW Presa el Bosque, Mich." whole rock volcanic Shoshonite Pliocene 3 5 2 -100.44 19.4275 298.565336 UC Berkeley Nb by ICP-MS at WSU 55.95 1.1 15.04 6.71 0.1 6.06 7.14 3.79 2.91 0.46 99.26 99.26 0 0.74 141 227 148 43 89 20 41 1462 25 210 5 1243 35 81 35 7 13 Blatter et al. 2001 2001-072942 Michoacan Z-122 67 "NW Presa el Bosque, Mich." whole rock volcanic Shoshonite Pliocene 3 5 2 -100.43 19.42 298.1759084 UC Berkeley Nb by ICP-MS at WSU 57.7 0.97 15.7 5.5 0.1 5.2 6.17 4.1 2.9 0.3 98.64 98.64 0 1.36 140 293 136 37 76 21 68 754 18 248 6 684 22 52 32 3 8 Blatter et al. 2001 2001-072942 Michoacan Z-133 68 "El Chorrito, Mich." whole rock volcanic Dacite Quaternary 1 3 1 -100.34 19.39 298.5384068 UC Berkeley Nb by ICP-MS at WSU 63.9 0.66 17.1 1.29 2.94 0.08 2.2 4.4 3.8 1.9 0.17 98.44 98.44 0 1.56 99 42 19 9 66 37 506 17 126 4.63 493 10 26 Blatter et al. 2001 2001-072942 Michoacan Z-137 69 Mesa el Contadero whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.53 19.46 298.4672627 UC Berkeley Nb by ICP-MS at WSU 56.83 0.88 16.61 6.19 0.08 4.84 7.17 4.15 1.62 0.25 98.62 98.62 0 1.38 117 206 116 28 74 19 16 1000 13 117 5 556 17 45 22 5 9 Blatter et al. 2001 2001-072942 Michoacan Z-142 70 W of Benito Juarez whole rock volcanic Andesite Quaternary 1 3 1 -100.45 19.3 285.0442205 UC Berkeley Nb by ICP-MS at WSU 61.59 0.78 15.24 4.61 0.09 4.63 6.53 3.89 1.26 0.26 99.88 98.88 -1 1.12 102 207 107 22 62 19 14 1141 18 121 7 392 17 33 17 3 5 Blatter et al. 2001 2001-072942 Michoacan Z-144 71 C. San Antonio whole rock volcanic Dacite Quaternary 1 3 1 -100.42 19.38 294.4379624 UC Berkeley Nb by ICP-MS at WSU 63.2 0.72 15.5 4.4 0.08 4.1 5.4 3.6 1.9 0.18 99.08 99.08 0 0.92 111 157 84 20 62 21 34 830 18 130 16 442 12 32 8 Blatter et al. 2001 2001-072942 Michoacan Z-149 72 Mesa Las Guasimas whole rock volcanic Andesite Quaternary 1 3 1 -100.52 19.3 282.3602015 UC Berkeley Nb by ICP-MS at WSU 61.86 0.78 15.61 4.84 0.08 4.44 6.17 4.25 1.4 0.21 99.64 99.64 0 0.36 117 197 97 36 34 18 18 1020 14 128 7 451 16 35 19 5 7 Blatter et al. 2001 2001-072942 Michoacan Z-157 73 S of Zitacuaro whole rock volcanic Dacite Quaternary 1 3 1 -100.31 19.34 294.5404323 UC Berkeley Nb by ICP-MS at WSU 64.7 0.69 17.4 4 0.08 1.9 4.2 4.1 1.8 0.2 99.07 99.07 0 0.93 97 31 25 8 61 22 32 517 19 131 15 496 12 28 10 Blatter et al. 2001 2001-072942 Michoacan Z-159 74 Sierra de Angangueo whole rock volcanic Andesite Quaternary 1 3 1 -100.22 19.5 314.4781322 UC Berkeley Nb by ICP-MS at WSU 61.7 0.72 17.6 4.5 0.07 3 5.4 3.6 1.7 0.15 98.44 98.44 0 1.56 123 33 14 9 62 21 50 532 18 137 18 380 8 28 9 Blatter et al. 2001 2001-072942 Michoacan Z-161 75 NW of Jungapeo whole rock volcanic Shoshonite Pliocene Early 3 5 2 -100.47 19.47 301.7952058 UC Berkeley Nb by ICP-MS at WSU 54.05 1.16 15.14 7.01 0.08 4.64 7.92 3.51 3.2 0.63 97.34 97.34 0 2.66 136 360 159 35 84 21 6 2280 28 211 5 1554 45 150 63 11 16 Blatter et al. 2001 2001-072942 Michoacan Z-162 76 NE of Jungapeo whole rock volcanic Shoshonite Pliocene Early 3 5 2 -100.51 19.47 300.2634668 UC Berkeley Nb by ICP-MS at WSU 56.7 1 14.8 5.6 0.1 5.1 7.3 3.8 3.3 0.5 98.2 98.2 0 1.8 184 176 126 25 86 19 65 1734 18 255 7 1080 41 83 49 4 14 Blatter et al. 2001 2001-072942 Michoacan Z-170 77 C. El Escorpion whole rock volcanic Andesite Quaternary 1 3 1 -100.49 19.31 284.5406761 UC Berkeley Nb by ICP-MS at WSU 60.01 0.8 15.29 4.89 0.08 4.46 6.16 4.15 1.44 0.21 97.49 97.49 0 2.51 123 229 92 33 65 20 19 1024 19 139 7 387 18 40 26 3 6 Blatter et al. 2001 2001-072942 Michoacan Z-171 78 W of Benito Juarez whole rock volcanic Andesite Quaternary 1 3 1 -100.46 19.31 285.6910523 UC Berkeley Nb by ICP-MS at WSU 59.6 0.82 15.46 4.88 0.08 4.66 6.46 4.36 1.34 0.23 97.89 97.89 0 2.11 117 184 115 32 63 20 17 1182 14 123 5 364 16 39 25 2 7 Blatter et al. 2001 2001-072942 Michoacan Z-172 79 "Timbuscatio, Mich." whole rock volcanic Andesite Quaternary 1 3 1 -100.48 19.28 281.83264 UC Berkeley Nb by ICP-MS at WSU 59.75 0.82 15.58 4.7 0.09 4.64 6.52 4.23 1.37 0.25 97.95 97.95 0 2.05 133 175 112 28 56 20 17 1148 16 130 8 373 19 39 22 1 5 Blatter et al. 2001 2001-072942 Michoacan Z-176A 80 Zitacuaro-Valle de Bravo whole rock volcanic Andesite Quaternary 1 3 1 -100.48 19.44 298.3206126 UC Berkeley Nb by ICP-MS at WSU 57.17 0.84 15.5 3.07 3.54 0.09 5.69 6.91 4.21 1.27 0.21 98.5 98.5 0 1.5 105 255 124 36 73 15 853 20 103 3.49 453 24 45 Blatter et al. 2001 2001-072942 Michoacan Z-177 81 "S of Tuxpan, Mich." whole rock volcanic Basalt high-TiO2 0.6 0 3 0.03 1 -100.49 19.48 302.059784 UC Berkeley Nb by ICP-MS at WSU 52.5 1.3 16.1 2.28 5.75 0.1 5.7 8.4 4 1.3 0.4 97.83 97.83 0 2.17 197 186 84 25 82 21 772 24 189 10.62 342 19 47 Blatter et al. 2001 2001-072942 Michoacan Z-178 82 "S of Tuxpan, Mich." whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.49 19.48 302.059784 UC Berkeley Nb by ICP-MS at WSU 52.4 1.3 15.9 7.8 0.1 5.7 8.1 4 1.4 0.3 97 97 0 3 183 173 83 28 88 21 22 768 25 188 13 338 20 49 24 2 7 Blatter et al. 2001 2001-072942 Michoacan Z-224 83 "La Mina, Mich." whole rock volcanic Dacite Quaternary 1 3 1 -100.54 19.41 292.931121 UC Berkeley Nb by ICP-MS at WSU 64.3 0.65 16 3.6 0.07 3.2 5.3 2.9 1.8 0.12 97.94 97.94 0 2.06 92 73 57 24 49 21 41 1038 16 110 15 439 19 36 8 Blatter et al. 2001 2001-072942 Michoacan Z-225B 84 C. Puerto el Obispo whole rock volcanic Basaltic andesite high-TiO2 Quaternary 1 3 1 -100.44 19.49 305.0054347 UC Berkeley Nb by ICP-MS at WSU 55 1.3 16.5 7.4 0.1 5.1 7.4 3.9 1.5 0.4 98.6 98.6 0 1.4 199 127 53 25 87 21 26 636 26 203 14 377 24 44 27 4 8 Blatter et al. 2001 2001-072942 Michoacan Z-227 85 "S of Tuxpan, Mich." whole rock volcanic Andesite high-TiO2 0.49 0 3 0.01 1 -100.47 19.55 310.0393096 UC Berkeley Nb by ICP-MS at WSU 55.2 1.4 17.3 1.74 5.43 0.1 3.8 7.6 3.8 1.6 0.3 98.27 98.27 0 1.73 210 49 15 20 83 29 631 29 197 10.9 385 25 44 Blatter et al. 2001 2001-072942 Michoacan Z-228 86 C. La Herradura whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.52 19.71 324.6168625 UC Berkeley Nb by ICP-MS at WSU 55.78 1.31 18.31 4.09 4.37 0.12 3.77 7.01 4.31 1.39 0.27 100.73 100.73 0 -0.73 181 10 17 27 84 24 584 20 163 8.97 338 13 30 Blatter et al. 2001 2001-072942 Michoacan Z-229 87 C. La Herradura whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.52 19.71 324.6168625 UC Berkeley Nb by ICP-MS at WSU 56.63 1.25 18.06 7.66 0.12 3.51 6.59 4.28 1.68 0.27 100.05 100.05 0 -0.05 157 10 13 26 82 20 31 557 21 166 11 367 14 35 20 4 7 Blatter et al. 2001 2001-072942 Michoacan Z-230 88 C. La Gloria whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.47 19.69 324.4669256 UC Berkeley Nb by ICP-MS at WSU 55.56 1.9 17.54 9.48 0.14 3.07 6.15 4.58 1.85 0.51 100.78 100.78 0 -0.78 174 9 11 26 116 24 32 529 33 260 18 525 35 64 32 6 9 Blatter et al. 2001 2001-072942 Michoacan Z-231 89 E of Tzintzingareo whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.45 19.77 333.4760614 UC Berkeley Nb by ICP-MS at WSU 53.13 1.52 17.94 8.47 0.13 4.83 8.21 4.04 1.53 0.45 100.25 100.25 0 -0.25 190 63 32 30 89 20 18 738 24 218 17 427 19 60 26 6 7 Blatter et al. 2001 2001-072942 Michoacan Z-232 90 SE of Maravatio whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.37 19.79 338.5970699 UC Berkeley Nb by ICP-MS at WSU 56.71 1.34 16.81 7.65 0.12 4.24 6.68 3.75 1.93 0.43 99.66 99.66 0 0.34 142 93 42 23 88 20 35 528 25 244 19 487 39 58 27 6 9 Blatter et al. 2001 2001-072942 Michoacan Z-235 91 Mesa Teco whole rock volcanic Andesite Quaternary 1 3 1 -100.63 19.25 272.9934469 UC Berkeley Nb by ICP-MS at WSU 61.75 0.81 16.02 5.41 0.08 4.45 6.24 3.9 1.46 0.22 100.34 100.34 0 -0.34 117 155 92 42 70 19 12 1014 13 135 7 413 14 47 25 5 6 Blatter et al. 2001 2001-072942 Michoacan Z-236 92 Mesa Teco whole rock volcanic Andesite Quaternary 1 3 1 -100.63 19.25 272.9934469 UC Berkeley Nb by ICP-MS at WSU 61.26 0.8 15.76 5.29 0.08 4.57 6.28 3.87 1.44 0.22 99.57 99.57 0 0.43 125 176 96 38 69 18 12 1036 14 135 6 393 13 36 23 4 6 Blatter et al. 2001 2001-072942 Michoacan Z-238 93 "SSS of Jungapeo, Mich." whole rock volcanic Shoshonite 3.77 3 5 0.05 2 -100.51 19.4 293.0492497 UC Berkeley Nb by ICP-MS at WSU 52.63 1.15 14.15 6.4 0.75 0.11 5.6 8.91 3.31 4.13 0.62 97.76 97.76 0 2.24 151 182 86 47 69 62 1322 32 297 7.05 1027 68 143 Blatter et al. 2001 2001-072942 Michoacan Z-239A 94 La Mesa del Campo whole rock volcanic Basalt high-TiO2 Pliocene Early 3 5 2 -100.51 19.41 294.0798435 UC Berkeley Nb by ICP-MS at WSU 51.81 1.88 16.43 10.42 0.15 5.6 8.5 3.5 1.18 0.63 100.1 100.1 0 -0.1 178 175 44 23 96 22 22 455 38 322 20 422 18 65 34 6 10 Blatter et al. 2001 2001-072942 Michoacan Z-239C 95 La Mesa del Campo whole rock volcanic Basalt high-TiO2 Pliocene Early 3 5 2 -100.51 19.41 294.0798435 UC Berkeley Nb by ICP-MS at WSU 51.43 1.84 16.48 3.76 7.11 0.16 5.72 8.6 3.54 1.16 0.62 100.42 100.42 0 -0.42 177 162 38 23 94 22 457 37 311 18.91 406 20 84 Blatter et al. 2001 2001-072942 Michoacan Z-243 96 Mesa Chiquita whole rock volcanic Andesite Quaternary 1 3 1 -100.576 19.33 283.3071751 UC Berkeley Nb by ICP-MS at WSU 59.29 0.79 14.93 5.91 0.09 5.71 7.19 3.64 1.78 0.25 99.58 99.58 0 0.42 142 258 61 32 68 19 28 921 13 127 5 517 26 55 27 5 10 Blatter et al. 2001 2001-072942 Michoacan Z-248 97 C. Puerto el Obispo whole rock volcanic Basaltic andesite high-TiO2 Quaternary 1 3 1 -100.42 19.48 304.7414905 UC Berkeley Nb by ICP-MS at WSU 55.4 1.3 16.8 7.1 0.1 4.8 7.4 4.1 1.6 0.3 98.9 98.9 0 1.1 203 98 39 25 87 20 29 648 27 204 12 384 26 50 26 6 9 Blatter et al. 2001 2001-072942 Michoacan Z-266 98 C. Puerto el Obispo whole rock volcanic Basaltic andesite high-TiO2 Quaternary 1 3 1 -100.43 19.51 307.4494183 UC Berkeley Nb by ICP-MS at WSU 54.6 1.3 16.3 7.7 0.1 5.9 7.5 4.2 1.3 0.3 99.2 99.2 0 0.8 174 147 83 20 84 19 25 615 24 180 12 350 15 40 21 5 7 Blatter et al. 2001 2001-072942 Michoacan Z-269 99 "Tuxpan, Mich." whole rock volcanic Andesite high-TiO2 0.52 0 3 0.01 1 -100.46 19.56 311.4526594 UC Berkeley Nb by ICP-MS at WSU 54.5 1.3 16.3 2.62 5.34 0.1 6 7.5 4.2 1.4 0.3 99.56 99.56 0 0.44 182 162 76 30 90 23 619 25 180 9.75 365 22 44 Blatter et al. 2001 2001-072942 Michoacan Z-309 100 "C. El Placayote, Mich." whole rock volcanic Andesite high-TiO2 0.95 0 3 0.04 1 -100.41 19.26 282.4580178 UC Berkeley Nb by ICP-MS at WSU 54.81 1.45 16.42 1.38 6.3 0.13 5.6 7.3 3.97 1.56 0.43 0.32 0.07 99.74 99.74 0 0.26 211 154 74 26 80 26 614 26 214 17.12 419 23 54 Blatter et al. 2001 2001-072942 Michoacan Z-311 101 S of Ixtapan del Oro whole rock volcanic Andesite Quaternary 1 3 1 -100.27 19.23 284.749049 UC Berkeley Nb by ICP-MS at WSU 59.1 0.8 16.4 5.2 0.1 4.6 6.4 4.1 1.9 0.2 98.8 98.8 0 1.2 137 149 88 27 61 20 34 736 18 145 6 485 23 41 27 8 Blatter et al. 2001 2001-072942 Mexico Z-315 102 NE of Valle de Bravo whole rock volcanic Dacite Quaternary 1 3 1 -100.08 19.24 293.0996066 UC Berkeley Nb by ICP-MS at WSU 65.9 0.51 16.6 3.1 0.06 2.5 4.4 3.8 2 0.13 99 99 0 1 92 76 41 14 43 20 32 763 15 107 15 476 12 22 0.22 8 Blatter et al. 2001 2001-072942 Mexico Z-317 103 San Pedro Tenayac whole rock volcanic Andesite Quaternary 1 3 1 -100.17 19.04 269.0374051 UC Berkeley Nb by ICP-MS at WSU 57.48 0.88 17.65 6.13 0.09 5.07 6.22 4.35 1.41 0.22 99.65 99.5 -0.15 0.5 125 193 105 31 81 20 21 640 90 123 8 444 88 154 86 10 8 Blatter et al. 2001 2001-072942 Mexico Z-318 104 San Pedro Tenayac whole rock volcanic Shoshonite Quaternary 1 3 1 -100.2 19.06 269.9394011 UC Berkeley Nb by ICP-MS at WSU 55.65 1.02 16.26 6.67 0.09 5.93 6.86 4.83 2.13 0.6 100.26 100.04 -0.22 -0.04 118 166 132 15 100 23 17 1291 16 156 13 819 66 89 37 8 13 Blatter et al. 2001 2001-072942 Mexico Z-320 105 NE of Valle de Bravo whole rock volcanic Andesite Quaternary 1 3 1 -100.1 19.24 292.3280744 UC Berkeley Nb by ICP-MS at WSU 61.92 0.67 16.04 4.72 0.07 3.81 5.73 3.89 2.09 0.16 99.1 99.1 0 0.9 109 66 53 23 60 20 21 835 10 126 5 426 11 30 19 4 8 Blatter et al. 2001 2001-072942 Mexico Z-324 106 NE of Valle de Bravo whole rock volcanic Andesite 0.022 0 3 1 -100.0383 19.263 297.0763067 UC Berkeley Nb by ICP-MS at WSU 62.08 0.67 15.52 4.98 0.07 5.87 5.19 4.01 1.67 0.17 100.24 100.23 -0.01 -0.23 106 249 146 27 67 18 26 671 9 125 6 409 4 29 13 4 8 Blatter et al. 2001 2001-072942 Mexico Z-327 107 NE of Valle de Bravo whole rock volcanic Andesite Quaternary 1 3 1 -100.14 19.23 289.7561253 UC Berkeley Nb by ICP-MS at WSU 61.82 0.72 15.65 5.08 0.08 5.49 5.73 3.89 1.52 0.16 100.14 100.14 0 -0.14 119 200 133 31 63 19 20 808 10 118 6 363 23 29 14 4 6 Blatter et al. 2001 2001-072942 Mexico Z-333 108 C. Zirahuato whole rock volcanic Dacite 0.051 0 3 1 -100.38 19.53 311.4264312 UC Berkeley Nb by ICP-MS at WSU 65.3 0.6 16.5 3.5 0.1 1.7 4.1 4.3 2 0.1 98.2 98.2 0 1.8 78 29 16 6 52 20 44 489 16 121 7 476 15 25 18 9 Blatter et al. 2001 2001-072942 Michoacan Z-338 109 C. La Laguna whole rock volcanic Dacite Quaternary 1 3 1 -100.39 19.62 320.3158706 UC Berkeley Nb by ICP-MS at WSU 63.2 0.6 18.3 3.4 0.1 2 4.5 4.2 1.4 0.2 97.9 97.9 0 2.1 100 21 21 8 53 21 20 789 16 114 7 519 19 32 20 9 Blatter et al. 2001 2001-072942 Michoacan Z-340 110 C. La Cochia whole rock volcanic Dacite Quaternary 1 3 1 -100.37 19.61 320.0518681 UC Berkeley Nb by ICP-MS at WSU 63.16 0.73 16.81 3.89 0.09 3.18 5.47 3.73 1.64 0.17 98.87 98.87 0 1.13 127 61 23 19 58 20 26 1028 21 118 5 312 18 31 23 7 Blatter et al. 2001 2001-072942 Michoacan Z-343A 111 W of Colorines whole rock volcanic Dacite Quaternary 1 3 1 -100.245 19.18 280.5621352 UC Berkeley Nb by ICP-MS at WSU 64.9 0.6 15.3 3.7 0.1 4 5.2 4.1 1.7 0.1 99.7 99.7 0 0.3 93 149 108 18 54 19 30 877 15 127 6 379 16 32 18 7 Blatter et al. 2001 2001-072942 Mexico Z-344 112 W of Nvo. Santo Tomas whole rock volcanic Andesite Quaternary 1 3 1 -100.28 19.17 278.1848087 UC Berkeley Nb by ICP-MS at WSU 61.96 0.64 16.2 4.6 0.07 3.84 5.53 3.55 1.58 0.16 98.13 98.13 0 1.87 104 128 80 26 63 19 14 802 8 120 5 396 15 28 23 4 7 Blatter et al. 2001 2001-072942 Mexico Z-345 113 W of Nvo. Santo Tomas whole rock volcanic Dacite Quaternary 1 3 1 -100.28 19.17 278.1848087 UC Berkeley Nb by ICP-MS at WSU 64.1 0.59 15.74 3.94 0.06 3.49 5.26 4.01 1.54 0.16 98.89 98.89 0 1.11 97 112 71 19 56 18 16 865 7 111 5 374 14 26 13 4 6 Blatter et al. 2001 2001-072942 Mexico Z-347 114 W of Colorines whole rock volcanic Dacite Quaternary 1 3 1 -100.26 19.18 279.9845864 UC Berkeley Nb by ICP-MS at WSU 64.44 0.58 15.74 3.92 0.06 3.39 5.27 3.99 1.9 0.16 99.45 99.45 0 0.55 85 101 63 23 54 18 19 849 7 108 4 392 19 31 18 4 6 Blatter et al. 2001 2001-072942 Mexico Z-349 115 NW of Temascaltepec whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.08 19.08 276.6296999 UC Berkeley Nb by ICP-MS at WSU 53.4 1 14.4 6.6 0.1 9.1 8.7 4.2 1.8 0.5 99.8 99.8 0 0.2 167 426 225 42 77 18 29 1451 38 129 8 735 50 88 48 11 Blatter et al. 2001 2001-072942 Mexico Z-350 116 W of Temascaltepec whole rock volcanic Andesite Quaternary 1 3 1 -100.11 19.04 271.3535226 UC Berkeley Nb by ICP-MS at WSU 59.71 0.93 15.81 6.03 0.1 4.28 7.07 3.8 1.79 0.29 99.8 99.81 0.01 0.19 144 116 78 43 80 20 19 1274 18 159 6 452 19 45 25 4 7 Blatter et al. 2001 2001-072942 Mexico Z-351 117 W of Temascaltepec whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.15 19.03 268.7797026 UC Berkeley Nb by ICP-MS at WSU 52.1 1 14.4 7 0.1 9.4 8.7 4 1.4 0.3 98.4 98.4 0 1.6 118 166 132 15 100 23 17 1291 16 156 13 819 66 89 37 8 13 Blatter et al. 2001 2001-072942 Mexico Z-352 118 "S of Zacazonapan, Mex." whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.28 19.05 265.8261583 UC Berkeley Nb by ICP-MS at WSU 53.62 0.98 15.8 7.58 0.16 6.81 8.29 3.96 1.83 0.45 99.48 99.48 0 0.52 182 297 164 38 89 19 19 1098 29 149 6 998 41 92 44 8 12 Blatter et al. 2001 2001-072942 Mexico Z-353 119 "S of Zacazonapan, Mex." whole rock volcanic Shoshonite Quaternary 1 3 1 -100.26 19.06 267.6265468 UC Berkeley Nb by ICP-MS at WSU 52.05 1.02 15.8 3.69 3.53 0.12 6.61 8.74 3.48 2.3 0.58 1.42 0.42 99.76 99.76 0 0.24 180 246 155 40 99 26 1405 27 152 5.52 98 52 106 Blatter et al. 2001 2001-072942 Mexico Z-354 120 "S of Zacazonapan, Mex." whole rock volcanic Andesite 0.29 0 3 0.12 1 -100.255 19.078 269.672868 UC Berkeley Nb by ICP-MS at WSU 62.7 0.7 16.7 4 0.1 2.8 5.3 3.8 2 0.2 98.3 98.3 0 1.7 96 257 176 22 62 31 753 14 130 3.28 393 14 28 Blatter et al. 2001 2001-072942 Mexico Z-355 121 W of Colorines whole rock volcanic Dacite Quaternary 1 3 1 -100.24 19.184 281.1665985 UC Berkeley Nb by ICP-MS at WSU 65.19 0.61 15.72 3.99 0.06 3.54 5.09 4.12 1.76 0.17 100.25 100.25 0 -0.25 79 133 87 27 59 19 22 888 9 132 5 423 23 31 15 4 7 Blatter et al. 2001 2001-072942 Mexico Z-356 122 "Colorines, Mex." whole rock volcanic Andesite 0.31 0 3 0.007 1 -100.23 19.18 281.1398074 UC Berkeley Nb by ICP-MS at WSU 61.94 0.66 15.71 5.21 0.08 5.14 5.61 3.79 1.74 0.15 100.04 100.03 -0.01 -0.03 121 22 25 5 54 31 837 16 124 3.77 386 13 28 Blatter et al. 2001 2001-072942 Mexico Z-358 123 Zitacuaro-Valle de Bravo whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.16 19.03 268.3937385 UC Berkeley Nb by ICP-MS at WSU 54.44 0.79 17.12 7 0.11 7.37 7.81 3.86 1.42 0.19 100.11 100.11 0 -0.11 166 289 146 40 72 23 620 22 98 3.55 432 16 32 Blatter et al. 2001 2001-072942 Mexico Z-361 124 Zuluapan whole rock volcanic Dacite Quaternary 1 3 1 -100.31 19.15 274.9703669 UC Berkeley Nb by ICP-MS at WSU 64.2 0.6 16.1 3.6 0.1 3.4 5.3 4.8 1.8 0.14 100.04 100.04 0 -0.04 94 98 60 19 53 21 27 944 14 115 5 387 14 22 15 6 Blatter et al. 2001 2001-072942 Mexico Z-368 125 "NW of Villa de Allende, Mex." whole rock volcanic Dacite Quaternary 1 3 1 -100.18 19.4 305.7189233 UC Berkeley Nb by ICP-MS at WSU 65.4 0.62 16.7 3.6 0.07 1.6 4.2 3.7 2 0.2 98.09 98.09 0 1.91 96 41 25 12 53 20 46 506 16 106 17 492 13 28 9 Blatter et al. 2001 2001-072942 Michoacan Z-370 126 "Zitacuaro, Mich." whole rock volcanic Andesite Quaternary 1 3 1 -100.34 19.44 303.6890562 UC Berkeley Nb by ICP-MS at WSU 62.2 0.6 18.6 3.8 0.1 2.1 4.7 3.9 1.3 0.13 97.43 97.43 0 2.57 90 64 43 8 79 22 36 659 15 128 6 548 15 35 18 10 Blatter et al. 2001 2001-072942 Michoacan Z-371 127 Zitacuaro-Valle de Bravo whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.39 19.52 310.0127831 UC Berkeley Nb by ICP-MS at WSU 54.64 1.37 16.68 3.01 5.04 0.12 5.49 8.44 3.63 1.52 0.42 100.36 100.36 0 -0.36 180 110 35 24 82 21 822 32 229 15.53 412 30 67 Blatter et al. 2001 2001-072942 Michoacan Z-371A 128 SE of Ocampo whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.3 19.55 316.5553539 UC Berkeley Nb by ICP-MS at WSU 55.52 1.34 16.78 7.45 0.12 4.78 7.97 3.75 1.59 0.43 99.73 99.73 0 0.27 156 67 23 26 81 20 26 771 26 241 18 432 21 64 28 6 9 Blatter et al. 2001 2001-072942 Michoacan Z-372 129 "E of Zacazonapan, Mex." whole rock volcanic Dacite Quaternary 1 3 1 -100.24 19.08 270.4568211 UC Berkeley Nb by ICP-MS at WSU 63.6 0.7 16 4 0.1 3.3 5.3 3.7 2.1 0.19 98.99 98.99 0 1.01 112 60 40 14 61 20 37 879 16 130 6 359 15 24 18 8 Blatter et al. 2001 2001-072942 Mexico Z-373 130 "SW of Zacazonapan, Mex." whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.27 19.06 267.2412619 UC Berkeley Nb by ICP-MS at WSU 53.4 1 15.6 6.9 0.1 7.2 8.4 4.2 1.9 0.4 99.1 99.1 0 0.9 165 305 167 37 87 20 30 1086 24 152 4 719 39 78 41 7 Blatter et al. 2001 2001-072942 Mexico Z-374 131 "S of Zacazonapan, Mex." whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.26 19.05 266.5967269 UC Berkeley Nb by ICP-MS at WSU 54.85 0.85 15.2 7.17 0.12 9.09 7.68 3.54 1.26 0.28 100.04 100.04 0 -0.04 150 491 220 41 71 13 838 15 130 4.28 489 19 50 Blatter et al. 2001 2001-072942 Mexico Z-381 132 "S of Suchitepec, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.23 19.46 309.974416 UC Berkeley Nb by ICP-MS at WSU 62 0.7 17.7 3.9 0.1 2.1 4.7 4.1 1.7 0.17 97.17 97.17 0 2.83 90 46 20 7 62 21 35 679 17 123 7 476 16 29 19 10 Blatter et al. 2001 2001-072942 Michoacan Z-383 133 "Colorines, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.21 19.18 281.910229 UC Berkeley Nb by ICP-MS at WSU 62.08 0.69 15.47 5.6 0.09 5.01 5.74 3.89 1.79 0.14 100.5 100.5 0 -0.5 142 177 67 35 63 19 28 583 14 129 5 385 14 25 8 4 8 Blatter et al. 2001 2001-072942 Mexico Z-389 134 W of Colorines whole rock volcanic Andesite Quaternary 1 3 1 -100.25 19.179 280.2666227 UC Berkeley Nb by ICP-MS at WSU 61.96 0.69 15.75 5.02 0.08 5.6 5.13 4.15 1.75 0.2 100.32 100.33 0.01 -0.33 108 224 149 23 67 20 26 691 9 129 6 449 18 43 23 5 7 Blatter et al. 2001 2001-072942 Mexico Z-390 135 W of Colorines whole rock volcanic Dacite Quaternary 1 3 1 -100.246 19.18 280.5236281 UC Berkeley Nb by ICP-MS at WSU 64.5 0.6 15.4 3.7 0.1 3.8 5.1 4.5 1.8 0.17 99.67 99.67 0 0.33 95 144 96 16 56 20 33 924 15 135 7 381 18 32 16 7 Blatter et al. 2001 2001-072942 Mexico Z-391 136 W of Colorines whole rock volcanic Andesite Quaternary 1 3 1 -100.25 19.1795 280.318114 UC Berkeley Nb by ICP-MS at WSU 61.3 0.7 15.4 4.7 0.1 5.6 5.1 4.7 1.7 0.21 99.51 99.51 0 0.49 94 257 160 21 67 18 35 692 16 130 5 419 15 30 15 7 Blatter et al. 2001 2001-072942 Mexico Z-392 137 "Colorines, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.27 19.18 279.5996223 UC Berkeley Nb by ICP-MS at WSU 61.8 0.7 15.2 4.5 0.1 5.8 4.9 4.7 1.8 0.2 99.7 99.7 0 0.3 106 258 191 30 69 19 35 722 14 132 7 412 17 31 21 8 Blatter et al. 2001 2001-072942 Mexico Z-393 138 "Colorines, Mex." whole rock volcanic Dacite Quaternary 1 3 1 -100.27 19.18 279.5996223 UC Berkeley Nb by ICP-MS at WSU 65 0.81 16.38 5.76 0.06 3.43 2.7 2.41 3.05 0.21 99.81 99.81 0 0.19 132 137 71 29 84 19 116 316 27 208 13 658 34 51 22 6 14 Blatter et al. 2001 2001-072942 Mexico Z-394 139 "Colorines, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.27 19.18 279.5996223 UC Berkeley Nb by ICP-MS at WSU 62.22 0.67 15.57 4.9 0.08 5.81 5.1 4.16 1.79 0.2 100.49 100.5 0.01 -0.5 99 232 151 21 67 18 25 730 9 131 6 404 19 27 11 4 5 Blatter et al. 2001 2001-072942 Mexico Z-396 140 "Colorines, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.18 19.19 284.0959125 UC Berkeley Nb by ICP-MS at WSU 61.8 0.7 15.2 5 0.1 4.7 5.6 4.3 2 0.08 99.48 99.48 0 0.52 128 185 75 17 55 18 33 574 18 131 5 358 15 27 14 7 Blatter et al. 2001 2001-072942 Mexico Z-398 141 "Colorines, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.23 19.17 280.1100369 UC Berkeley Nb by ICP-MS at WSU 59.66 0.84 16.12 5.24 0.08 4.97 7.02 3.88 1.55 0.27 99.62 99.63 0.01 0.37 127 143 87 45 63 20 8 1565 17 128 6 494 36 75 34 7 9 Blatter et al. 2001 2001-072942 Mexico Z-401 142 C. El Garrapato whole rock volcanic Andesite Quaternary 1 3 1 -100.41 19.6 317.4890806 UC Berkeley Nb by ICP-MS at WSU 60.4 0.8 14.8 4.8 0.1 6.7 6 3.9 1.5 0.19 99.19 99.19 0 0.81 119 355 192 25 71 17 32 911 18 130 6 358 16 31 17 9 Blatter et al. 2001 2001-072942 Michoacan Z-491 143 S of Maravatio whole rock volcanic Dacite Quaternary 1 3 1 -100.44 19.78 334.8889172 UC Berkeley Nb by ICP-MS at WSU 63.23 0.85 16.69 5.3 0.09 2.53 5.11 4.16 2.01 0.27 100.24 100.24 0 -0.24 92 40 26 15 81 20 48 528 19 213 11 527 34 54 21 6 10 Blatter et al. 2001 2001-072942 Michoacan Z-501 144 C. Puerto el Obispo whole rock volcanic Basaltic andesite high-TiO2 Quaternary 1 3 1 -100.49 19.52 306.1820462 UC Berkeley Nb by ICP-MS at WSU 54.8 1.36 16.75 8.38 0.13 5.43 7.35 3.89 1.38 0.39 99.86 99.86 0 0.14 Blatter et al. 2001 2001-072942 Michoacan Z-502 145 C. Puerto del Obispo whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.18 19 264.5331811 UC Berkeley Nb by ICP-MS at WSU 56.66 0.87 16.86 6.24 0.1 6.2 6.86 4.22 1.84 0.43 100.48 100.28 -0.2 -0.28 129 221 133 31 81 20 27 1083 18 176 7 662 32 71 34 7 9 Blatter et al. 2001 2001-072942 Mexico Z-503 146 C. Puerto del Obispo whole rock volcanic Andesite Quaternary 1 3 1 -100.18 19.01 265.5627763 UC Berkeley Nb by ICP-MS at WSU 58.69 0.77 15.13 5.81 0.09 7.76 7.07 3.42 1.13 0.18 100.28 100.05 -0.23 -0.05 129 371 191 42 63 18 12 1151 13 112 4 325 3 39 22 4 6 Blatter et al. 2001 2001-072942 Mexico Z-504 147 C. Puerto del Obispo whole rock volcanic Andesite Quaternary 1 3 1 -100.19 19.03 267.2361733 UC Berkeley Nb by ICP-MS at WSU 58.65 0.77 14.91 5.58 0.09 7.63 7.19 3.35 1.29 0.23 99.93 99.69 -0.24 0.31 132 351 183 40 63 18 9 1301 14 115 5 407 24 44 22 5 8 Blatter et al. 2001 2001-072942 Mexico Z-506 148 C. Puerto del Obispo whole rock volcanic Andesite Quaternary 1 3 1 -100.27 19.12 273.4203956 UC Berkeley Nb by ICP-MS at WSU 62.97 0.72 17.82 4.52 0.07 2.43 5.33 4.4 2.09 0.19 100.66 100.54 -0.12 -0.54 114 11 10 63 22 27 805 11 145 6 455 6 41 20 5 9 Blatter et al. 2001 2001-072942 Mexico Z-507 149 C. Puerto del Obispo whole rock volcanic Andesite Quaternary 1 3 1 -100.27 19.11 272.3905335 UC Berkeley Nb by ICP-MS at WSU 62.78 0.72 17.72 4.49 0.06 2.43 5.26 4.36 2.13 0.18 100.27 100.13 -0.14 -0.13 109 5 13 11 64 22 30 779 11 146 5 438 21 33 18 4 9 Blatter et al. 2001 2001-072942 Mexico Z-508 150 N of San Juan Acatitlan whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.29 19.03 263.3811635 UC Berkeley Nb by ICP-MS at WSU 53.14 1 15.93 7.65 0.11 6.57 8.51 3.86 1.73 0.46 99.18 98.96 -0.22 1.04 179 272 139 49 89 21 11 1131 30 162 6 1018 49 119 58 8 14 Blatter et al. 2001 2001-072942 Mexico Z-509 151 Zitacuaro-Valle de Bravo whole rock volcanic Andesite Quaternary 1 3 1 -100.11 19.04 271.3535226 UC Berkeley Nb by ICP-MS at WSU 59.37 0.97 16.11 2.16 3.34 0.1 4.14 6.8 3.6 1.9 0.24 0.3 0.66 99.69 99.69 0 0.31 143 117 60 48 80 23 1273 22 159 4.56 455 29 61 Blatter et al. 2001 2001-072942 Mexico Z-510 152 W of Temascaltepec whole rock volcanic Andesite Quaternary 1 3 1 -100.11 19.036 270.941755 UC Berkeley Nb by ICP-MS at WSU 59.32 0.94 15.88 6.06 0.1 4.15 6.88 3.61 1.92 0.28 99.34 99.14 -0.2 0.86 154 102 64 25 77 19 21 1233 20 160 5 455 18 57 24 6 7 Blatter et al. 2001 2001-072942 Mexico Z-511 153 W of Temascaltepec whole rock volcanic Andesite Quaternary 1 3 1 -100.09 19.02 270.0672693 UC Berkeley Nb by ICP-MS at WSU 58.52 0.93 17.16 5.82 0.08 4.18 6.08 4.07 2 0.37 99.4 99.21 -0.19 0.79 130 138 79 19 78 20 26 1000 97 183 8 733 155 337 164 20 12 Blatter et al. 2001 2001-072942 Mexico Z-512 154 W of Temascaltepec whole rock volcanic Andesite Quaternary 1 3 1 -100.07 19.04 272.8986925 UC Berkeley Nb by ICP-MS at WSU 58.59 0.9 16.78 5.81 0.09 4.31 6.06 4.13 2.04 0.34 99.04 99.05 0.01 0.95 128 158 84 28 80 19 24 1048 76 187 8 769 54 96 48 8 9 Blatter et al. 2001 2001-072942 Mexico Z-513 155 Zitacuaro-Valle de Bravo whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.25 19.07 269.041682 UC Berkeley Nb by ICP-MS at WSU 55.38 0.85 15.21 7.1 0.11 8.71 7.58 3.52 1.25 0.28 99.99 99.99 0 0.01 163 488 201 46 72 17 16 790 20 133 5 470 29 69 35 7 8 Blatter et al. 2001 2001-072942 Mexico Z-514 156 SW of San Pedro Tenayac whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.22 19.07 270.1979476 UC Berkeley Nb by ICP-MS at WSU 55.68 0.89 16.6 6.53 0.11 6.37 7.16 4.34 1.68 0.3 99.66 99.66 0 0.34 120 257 174 32 77 20 21 891 15 128 9 585 26 49 25 5 10 Blatter et al. 2001 2001-072942 Mexico Z-515 157 SW of San Pedro Tenayac whole rock volcanic Shoshonite Quaternary 1 3 1 -100.22 19.04 267.108807 UC Berkeley Nb by ICP-MS at WSU 56.82 0.97 16.14 6.16 0.09 5.76 6.7 4.73 2.38 0.52 100.27 100.27 0 -0.27 134 180 129 34 101 23 18 1299 16 180 13 811 57 93 35 8 12 Blatter et al. 2001 2001-072942 Mexico Z-516 158 SW of San Pedro Tenayac whole rock volcanic Shoshonite Quaternary 1 3 1 -100.19 19.04 268.2658023 UC Berkeley Nb by ICP-MS at WSU 56.54 0.92 15.8 6.14 0.09 4.78 6.98 3.66 2.86 0.55 98.32 98.32 0 1.68 138 145 90 42 90 19 56 1071 98 224 7 979 123 252 125 15 12 Blatter et al. 2001 2001-072942 Mexico Z-517 159 SW of San Pedro Tenayac whole rock volcanic Shoshonite Quaternary 1 3 1 -100.19 19.04 268.2658023 UC Berkeley Nb by ICP-MS at WSU 56.39 0.92 15.74 6.16 0.09 4.54 7.01 3.53 2.88 0.57 97.82 97.83 0.01 2.17 149 142 87 41 90 19 58 1071 122 227 8 1050 189 390 174 22 13 Blatter et al. 2001 2001-072942 Mexico Z-518 160 Zitacuaro-Valle de Bravo whole rock volcanic Andesite Quaternary 1 3 1 -100.18 19.04 268.6515764 UC Berkeley Nb by ICP-MS at WSU 60.39 0.79 17.5 5.19 0.08 3.24 6.12 3.96 1.75 0.18 99.2 99.2 0 0.8 129 9 11 8 68 20 16 851 13 128 4 366 19 30 16 4 7 Blatter et al. 2001 2001-072942 Mexico Z-519 161 Zitacuaro-Valle de Bravo whole rock volcanic Andesite Quaternary 1 3 1 -100.22 19.01 264.0196892 UC Berkeley Nb by ICP-MS at WSU 57.91 0.75 14.81 5.93 0.09 8.2 7.17 3.25 1.11 0.18 99.4 99.4 0 0.6 134 416 195 42 64 17 11 1068 16 109 4 295 42 49 27 5 6 Blatter et al. 2001 2001-072942 Mexico Z-520 162 "C. Gordo, Tejupilco, Mex." whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.39 19.52 310.0127831 UC Berkeley Nb by ICP-MS at WSU 53.15 0.86 15.93 7.74 0.12 8.86 8.17 3.63 1.26 0.24 99.96 99.96 0 0.04 187 469 196 50 79 19 603 17 129 3.39 342 37 42 Blatter et al. 2001 2001-072942 Michoacan Z-521 163 "C. Gordo, Tejupilco, Mex." whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.39 19.52 310.0127831 UC Berkeley Nb by ICP-MS at WSU 56.6 0.87 15.93 6.61 0.1 6.9 7.32 4.04 1.63 0.31 100.31 100.31 0 -0.31 134 292 154 34 75 20 21 866 17 151 5 603 30 73 35 7 9 Blatter et al. 2001 2001-072942 Michoacan Z-522 164 "Tejupilco, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.39 19.52 310.0127831 UC Berkeley Nb by ICP-MS at WSU 59.8 0.78 15.54 5.34 0.08 5.76 6.19 3.89 2.04 0.25 99.67 99.67 0 0.33 114 230 134 34 71 21 22 948 12 148 5 484 20 39 17 5 8 Blatter et al. 2001 2001-072942 Michoacan Z-523 165 NW of Temascaltepec whole rock volcanic Shoshonite Quaternary 1 3 1 -100.39 19.52 310.0127831 UC Berkeley Nb by ICP-MS at WSU 53.97 0.89 15.47 7.1 0.11 7.88 8.05 3.82 2.24 0.44 99.97 99.97 0 0.03 149 352 188 50 84 18 31 1104 22 160 6 949 55 81 39 7 15 Blatter et al. 2001 2001-072942 Michoacan Z-525 166 "S of Zacazonapan, Mex." whole rock volcanic Basaltic andesite Quaternary 1 3 1 -100.26 19.03 264.5370948 UC Berkeley Nb by ICP-MS at WSU 55.68 0.86 15.46 6.99 0.11 8.6 7.53 3.61 1.3 0.27 100.41 100.41 0 -0.41 150 417 183 44 74 18 17 786 15 136 6 430 32 40 22 4 8 Blatter et al. 2001 2001-072942 Mexico Z-526 167 "S of. Zacazonapan, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.26 19.03 264.5370948 UC Berkeley Nb by ICP-MS at WSU 62.92 0.72 17.68 4.55 0.06 2.47 5.33 4.35 2.11 0.19 100.38 100.38 0 -0.38 114 8 12 11 65 22 29 778 11 144 5 441 16 39 18 5 9 Blatter et al. 2001 2001-072942 Mexico Z-527 168 "S of. Zacazonapan, Mex." whole rock volcanic Andesite Quaternary 1 3 1 -100.26 19.03 264.5370948 UC Berkeley Nb by ICP-MS at WSU 62.75 0.73 17.79 4.6 0.07 2.45 5.39 4.36 2.11 0.18 100.43 100.43 0 -0.43 112 17 11 10 64 22 27 804 10 144 6 449 14 38 21 4 8 Blatter et al. 2001 2001-072942 Mexico Z-528 169 E of Ciudad Hidalgo whole rock volcanic Basalt high-TiO2 Quaternary 1 3 1 -100.51 19.69 322.9376332 UC Berkeley Nb by ICP-MS at WSU 55.47 1.34 17.33 8.41 0.13 4.22 7.7 3.99 1.36 0.24 100.19 100.19 0 -0.19 206 36 27 29 86 21 26 482 21 150 9 299 2 27 16 4 7 Blatter et al. 2001 2001-072942 Michoacan Method Data 1 NN 480 2 NN 480 3 NN 480 4 NN 480 Reference Data TI "Neogene volcanism at the front of the central Mexican volcanic belt; basaltic andesites to dacites, with contemporaneous shoshonites and high-TiO sub 2 lava." AU Blatter-Dawnika-L; Carmichael-Ian-S-E; Deino-Alan-L; Renne-Paul-R AF "University of California at Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States" SO "Geological Society of America Bulletin. 113; 10, Pages 1324-1342. 2001." PB "Geological Society of America GSA. Boulder, CO, United States. 2001." CP United-States PY 2001 LA English AB Deleted in this version DE andesites-; basaltic-composition; basalts-; Cenozoic-; cinder-cones; dacites-; eruptions-; igneous-rocks; lava-; magmas-; mapping-; Mexican-volcanic-belt; Mexico-; mineral-composition; Neogene-; oxides-; Pliocene-; Quaternary-; rates-; shield-volcanoes; shoshonite-; Tertiary-; titanium-oxides; volcanic-features; volcanic-rocks; volcanism-; volcanoes- CC 05A-Igneous-and-metamorphic-petrology DT Serial BL Analytic MC LAT| N184500; N194500; LONG: W1000000; W1004000. NN With GSA Data Repository Item 2001109. IL "Refs 63; illus. incl. 5 tables, geol. sketch maps." RF "GeoRef, Copyright 2002, American Geological Institute. Reference includes data supplied by the Geological Society of America, Boulder, CO, United States" IS 0016-7606 CO BUGMAF UR Full text http://www.gsajournals.org/gsaonline/?request=get-abstract&issn=0016-7606&volume=0113&issue=010&page=01324 AN 2001-072942 UD 200122