Date File Created Name of Creator 5/1/2006 Rich Gaschnig GeoRef Data 2005-033636 DN GeoRef TI Geochemical and Sr-isotopic variations in western Snake River plainbasalts, Idaho AU White, Craig M; Hart, William K; Bonnichsen, Bill; Matthews, Debra AF Boise State University, Department of Geosciences, Boise, ID, UnitedStates USA AF Miami University, United States USA; Idaho Geological Survey, UnitedStates USA MT Tectonic and magmatic evolution of the Snake River Plain volcanicprovince ED Bonnichsen, Bill; White, Craig M; McCurry, Michael AF Idaho Geological Survey, Moscow, ID, United States USA SO Bulletin - Idaho Geological Survey, Report: 30, pp.329-342, May 2004 CD #06513 IB 1557650292 RP 30 LA English FE References: 33; illus. incl. 2 tables, sketch maps PY 2004 PT Serial; Report; Analytic CP United States USA FC Compact disc LL Latitude:N431200,N433000 Longitude:W1161800,W1164200 DE Ada County Idaho; alkaline earth metals; basalts; Canyon County Idaho;chemical composition; concentration; genesis; geochemistry; Idaho;igneous rocks; isotope ratios; isotopes; magmas; metals; ocean-islandbasalts; Owyhee County Idaho; rare earths; Snake River plain;Sr-87/Sr-86; stable isotopes; strontium; tholeiitic basalt; UnitedStates; variations; volcanic rocks CL 02C Geochemistry of rocks, soils, and sediments; 05A Igneous andmetamorphic petrology CY GeoRef, Copyright 2005, American Geological Institute. UD 200512 AN 2005-033636 Sample Data Item SiO2 TiO2 Al2O3 FeOT MnO MgO CaO Na2O K2O P2O5 Ni Cr Sc V Ba Rb Sr Zr Y Nb Cu Zn La Ce Pr Nd Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Th Hf Ta U Pb Cs 87_86Sr Total Age Max_age Min_age Location_Name Volcanic_Field Rock_Class Rock_Type Age Max_age Min_age LatDD LongDD Loc_prec Material State Units 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 wt % Ma Ma Ma Ma Ma Ma DD DD Method 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 3 1 4 4 4 5 5 5 6 6 Sample Name MB-5 47.47 1.78 16.45 11.65 0.19 8.45 9.95 2.74 0.38 0.24 83 94 30 266 171 3 230 96 29 10 44 100 9.52 20.91 2.9 13.97 4.3 1.61 4.81 0.9 5.66 1.15 3.22 0.45 2.63 0.42 0.39 2.6 0.57 0.11 1.98 0.03 0.70648 99.3 7.85 8.04 7.66 Western Snake River Plain, Melba area, Teapot Volcanic Field Teapot basalt olivine tholeiite basalt volcanic 43.2757 -116.591 0.1 whole rock ID CM-16B 48.19 2.31 15.82 12.72 0.19 7.84 10.17 2.69 0.49 0.36 75 158 34 284 280 5 241 125 33 15 36 111 15.01 31.52 4.17 19.83 5.75 2.03 5.99 1.06 6.63 1.34 3.76 0.5 3.04 0.48 0.55 3.47 0.86 0.18 2.74 0.06 0.7068 100.78 7.92 8.11 7.73 Western Snake River Plain, Melba area, Chalky Volcanic Field Chalky basalt olivine tholeiite basalt volcanic 43.2959 -116.6322 0.1 whole rock ID CM-11 47.71 2.32 15.01 13.27 0.19 8.59 9.71 2.65 0.39 0.39 68 291 30 285 238 3 269 130 33 14 34 112 14.53 30.77 4.15 19.15 5.49 2.01 5.81 1.06 6.49 1.31 3.63 0.49 2.92 0.46 0.74 3.36 0.8 0.68 3.37 0.04 0.706 100.23 Western Snake River Plain, Melba area, Teapot Volcanic Field Teapot basalt olivine tholeiite basalt volcanic 8 9 7 43.2757 -116.591 0.1 whole rock ID CM-25 47.1 2.44 15.24 12.98 0.21 7.52 10.49 2.52 0.33 0.38 94 232 27 310 457 1 289 145 34 19 58 115 17.5 37.5 4.95 22.85 6.32 2.18 6.78 1.17 6.77 1.37 3.65 0.52 3.1 0.48 0.62 3.73 0.93 0.19 2.71 0.03 0.70638 99.21 Western Snake River Plain, Melba area, Sinker Creek Sinker Creek basalt olivine tholeiite basalt volcanic 8 9 7 43.2317 -116.3942 0.1 whole rock ID CM-20 46.91 3.61 13.96 15.33 0.23 6.44 9.43 2.63 0.69 0.76 42 141 29 371 630 7 320 262 42 34 26 147 35.7 70.7 8.62 37.5 9.59 3.22 9.52 1.58 9.03 1.8 4.57 0.62 3.68 0.56 1.18 6.48 1.77 0.45 4.65 0.17 0.70696 99.99 Western Snake River Plain, Melba area, Pickles Butte Pickles Butte basalt olivine tholeiite basalt volcanic 2 0.4 43.4889 -116.7114 0.1 whole rock ID I-2664 46.15 3.56 14.13 14.77 0.23 7.37 9.9 2.67 0.52 0.71 73 207 30 362 446 5 310 262 41 25 18 151 27.68 57.62 7.46 34.32 9.01 3.16 8.83 1.47 8.8 1.74 4.61 0.62 3.66 0.55 0.85 6.41 1.62 0.29 3.68 0.11 0.7067 100.01 0.96 1.12 0.8 Western Snake River Plain, Melba area, Hat Butte Hat Butte basalt olivine tholeiite basalt volcanic 43.4061 -116.5925 0.1 whole rock ID WS1-2 49.06 3.1 13.85 13.98 0.21 6.33 9.11 2.57 0.89 0.68 68 150 27 295 458 18 322 245 46 27 27 145 28.17 57.55 7.53 34.09 9.08 3.06 8.88 1.5 9.12 1.79 4.97 0.64 3.89 0.6 1.91 6.53 1.7 0.58 4.38 0.58 0.7073 99.78 Western Snake River Plain, Melba area, Walters Butte Walters Butte basalt olivine tholeiite basalt volcanic 1.89 1.98 1.8 43.3467 -116.5514 0.01 whole rock ID CM-7 48.65 3.4 13.97 13.78 0.22 6.49 9.5 2.57 0.72 0.69 60 156 31 343 464 15 333 253 47 26 144 148 27.66 56.9 7.46 34.7 9.03 3.11 8.94 1.53 9.13 1.84 4.97 0.67 3.91 0.6 1.67 6.69 1.53 0.51 4.77 0.61 0.70721 99.99 Western Snake River Plain, Melba area, Guffey Butte Guffey Butte basalt olivine tholeiite basalt volcanic 2 0.4 43.2915 -116.5383 0.01 whole rock ID CM-14 44.66 3.79 14.13 15.37 0.25 5.69 9.49 3.07 1.28 2.2 27 71 30 288 738 29 321 374 72 68 30 168 58.51 122.6 15.6 70.15 16.97 4.99 15.58 2.56 15.02 2.91 7.96 1.04 6.3 0.98 2.2 8.25 3.49 0.78 5.75 0.51 99.93 0.9 0.94 0.86 Western Snake River Plain, Melba area, Swan Falls Road Swan Falls Road basalt olivine tholeiite basalt volcanic 43.3983 -116.4126 0.1 whole rock ID CM-21 44.68 3.9 14.21 15.91 0.23 5.69 8.92 3.07 1.28 1.68 41 77 30 267 845 26 318 341 61 59 43 174 48.97 102.2 13 58.76 14.88 4.47 14.29 2.34 13.39 2.68 6.86 0.96 5.78 0.9 1.9 8.26 3.24 0.68 3.28 0.24 99.57 Western Snake River Plain, Melba area, Coyote Butte Coyote Butte basalt olivine tholeiite basalt volcanic 2 0.4 43.3261 -116.37 0.01 whole rock ID CM-23 44.89 3.97 14.39 14.89 0.24 6.96 9.17 3.07 0.94 1.1 67 111 26 316 495 13 322 208 44 37 31 150 27.3 60.5 8.06 37.2 9.8 3.49 10.14 1.66 9.48 1.9 4.97 0.69 4.17 0.65 1.16 5.32 2.2 0.44 2.84 0.08 0.7053 99.62 Western Snake River Plain, Melba area, Trio Trio basalt olivine tholeiite basalt volcanic 2 0.4 43.314 -116.367 0.1 whole rock ID CM-27 46.46 3.9 14.05 15.02 0.23 6.07 9.9 2.87 0.63 0.86 35 136 29 425 529 7 322 306 45 35 37 154 0.70693 99.99 Western Snake River Plain, Melba area, Sinker Butte Sinker Butte basalt olivine tholeiite basalt volcanic 2 0.4 43.232 -116.396 0.01 whole rock ID I-2725 47.11 1.95 15.57 11.45 0.19 9.21 10.58 2.76 0.74 0.44 153 272 34 245 330 17 298 152 27 22 30 95 18.22 37.54 4.83 21.91 5.69 1.97 5.53 0.97 6 1.2 3.35 0.45 2.69 0.42 1 3.73 1.81 0.35 2.09 0.13 0.705 100 0.76 0.89 0.63 Western Snake River Plain, Melba area, Guffey Table Guffey Table basalt alkaline basalt volcanic 43.2855 -116.5208 0.1 whole rock ID I-2715 49.58 1.54 16.7 10.64 0.18 6.87 11.91 2.91 0.42 0.25 60 228 36 285 181 5 220 92 25 14 43 76 8.82 18.99 2.58 12.08 3.58 1.36 3.88 0.74 4.7 0.98 2.81 0.39 2.37 0.37 0.57 2.33 0.74 0.18 1.29 0.08 0.70542 101 0.73 0.84 0.62 Western Snake River Plain, Melba area, Grouch Drain Grouch Drain basalt alkaline basalt volcanic 43.3517 -116.5889 0.1 whole rock ID ML-5 46.96 2.25 15.16 11.96 0.19 8.62 9.91 2.86 1.06 0.41 131 249 26 237 363 23 352 151 30 23 48 99 99.38 Western Snake River Plain, Melba area, Halverson Cliffs Halverson Cliffs basalt alkaline basalt volcanic 2 0.4 43.3517 -116.5889 1 whole rock ID ML-3 48.13 2.47 16.16 11.7 0.19 7.23 9.63 3.03 1.14 0.55 73 138 28 262 392 19 379 179 33 30 41 109 0.7051 100.23 Western Snake River Plain, Melba area, Halverson Cliffs Halverson Cliffs basalt alkaline basalt volcanic 2 0.4 43.3517 -116.5889 1 whole rock ID DMI-19 47.97 1.84 16.21 10.41 0.17 8.47 9.4 2.72 1.28 0.45 135 216 29 224 470 31 411 136 23 26 38 90 17.14 35.14 4.37 18.96 4.97 1.76 4.92 0.81 4.95 1.01 2.66 0.38 2.28 0.35 1.34 3.37 1.76 0.49 1.68 0.68 98.91 Western Snake River Plain, Melba area, Initial Point Initial Point basalt alkaline basalt volcanic 2 0.4 43.3679 -116.3928 0.1 whole rock ID DMI-18 49.25 1.94 16.29 10.56 0.17 6.97 9.42 3.19 1.73 0.48 84 166 24 224 636 41 411 156 26 37 28 81 21.62 42.77 5.18 21.97 5.25 1.8 5.26 0.84 5.02 0.99 2.57 0.37 2.26 0.34 1.71 3.64 2.31 0.55 2.5 0.47 0.7057 100 Western Snake River Plain, Melba area, Initial Point Initial Point basalt alkaline basalt volcanic 2 0.4 43.3679 -116.3928 0.1 whole rock ID I-3105 48.7 2.25 16.26 10.85 0.19 6.61 9.34 3.41 1.67 0.72 63 134 30 235 831 34 442 186 31 46 24 92 28.78 56.55 6.85 28.72 6.83 2.23 6.64 1.07 6.37 1.26 3.31 0.47 2.81 0.44 2.17 4.29 2.83 0.59 2.94 0.28 100 Western Snake River Plain, Melba area, Kuna Butte Kuna Butte basalt alkaline basalt volcanic 2 0.4 43.4432 -116.4523 0.1 whole rock ID DMK-2 48.71 2.08 16.17 11.12 0.18 7.28 9.33 3.11 1.37 0.55 80 152 23 229 498 30 426 167 28 40 34 92 22.7 45.07 5.5 23.59 5.78 2 5.79 0.93 5.57 1.13 2.98 0.42 2.52 0.39 1.79 4.04 2.46 0.61 2.72 0.23 0.70533 99.9 Western Snake River Plain, Melba area, Kuna Butte Kuna Butte basalt alkaline basalt volcanic 2 0.4 43.4432 -116.4523 0.1 whole rock ID DMK-4 49.93 2.52 16.65 9.64 0.17 4.67 9.15 3.65 1.94 0.83 23 76 24 257 810 41 447 225 36 58 43 98 34.54 67.75 8.11 33.7 8.07 2.54 8 1.31 7.97 1.62 4.37 0.62 3.69 0.58 2.72 5.49 3.66 0.98 3.32 0.3 0.7054 99.15 Western Snake River Plain, Melba area, Kuna Butte Kuna Butte basalt alkaline basalt volcanic 2 0.4 43.4432 -116.4523 0.1 whole rock ID CM-17 1.89 1.98 1.8 Western Snake River Plain, Melba area, Walters Butte Walters Butte basalt alkaline basalt volcanic 43.3467 -116.5514 0.01 whole rock ID Method Data 1 XRF 299 2 ICPMS 299 3 MS-ID:WR 299 4 AR-AR:WR 11 some dates are from plagioclase separates but paper does not differentiate between these and whole rock dates 5 REG_COR 11 6 SCAN 2005-033636 Normalization Data Item 87Sr/86Sr Method Number 3 Standard Name Eimer and Amend SrCO3 0.708 Fractionation Data Method Number 3 Item 87Sr/86Sr