GEOLOGIC MAP of the LEWISTON ORCHARDS NORTH QUADRANGLE and PART of the CLARKSTON QUADRANGLE, NEZ PERCE COUNTY, IDAHO CORRELATION of MAP UNITS Table 1
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IDAHO GEOLOGICAL SURVEY DIGITAL WEB MAP 40 MOSCOW-BOISE-POCATELLO GARWOOD AND BUSH GEOLOGIC MAP OF THE LEWISTON ORCHARDS NORTH QUADRANGLE AND PART OF THE CLARKSTON QUADRANGLE, NEZ PERCE COUNTY, IDAHO CORRELATION OF MAP UNITS Table 1. Major oxide and trace element chemistry of basalt samples collected on the Lewiston Orchards North and Clarkston quadrangles. Disclaimer: This Digital Web Map is an informal report and may be Normalized major elements in weight percent Unnormalized trace elements in parts per million revised and formally published at a later time. Its content and format Artificial Surficial Clarkston Columbia River Basalt Group Sample Map Compiled and Mapped by may not conform to agency standards. Deposits Deposits Gravels number Latitude Longitude Unit name unit SiO2 Al2O3 TiO2 FeO* MnO CaO MgO K2OPNa2O 2O5 Ni Cr Sc V Ba Rb Sr Zr Y Nb Ga Cu Zn Pb La Ce Th m HOLOCENE BRY 46.38124 -117.01616 Lewiston Orchards Twl 49.68 14.35 2.543 12.15 0.190 11.41 6.24 0.44 2.41 0.589 49 259 44 323 499 8 242 184 44 20.5 21 50 121 3 15 74 1 Dean L. Garwood and John H. Bush Qal CL1 46.46259 -117.00107 Asotin Taw 50.58 16.04 1.413 9.16 0.156 11.41 8.23 0.51 2.33 0.167 130 284 35 251 156 8 242 105 24 11.5 19 92 75 4 6 44 1 Qls Ql QUATERNARY 2005 PLEISTOCENE CL2 46.46269 -117.00573 Lewiston Orchards Twl 49.49 15.08 2.170 10.84 0.205 11.13 7.71 0.40 2.47 0.507 74 269 39 274 382 3 249 153 37 19.9 16 50 103 6 13 59 3 CL3 46.4577 -117.01966 Grande Ronde R2 Tgr2 55.43 13.86 2.554 11.97 0.192 7.33 3.26 1.86 3.08 0.466 2 27 24 386 890 48 323 191 40 14.8 21 20 132 10 31 65 5 PLIOCENE TERTIARY CL4 46.4535 -117.01301 Grande Ronde N Tgn 55.49 14.00 2.001 10.95 0.215 7.96 4.19 1.51 3.32 0.375 5 32 35 387 529 32 329 164 39 12.3 22 42 127 8 13 41 4 A Tcg 1 1 CL5 46.44284 -117.01068 Grande Ronde R2 Tgr2 55.51 13.70 2.452 12.13 0.197 6.93 3.33 2.12 3.18 0.463 8 21 30 367 753 53 313 204 40 13.4 20 28 132 9 21 63 7 unconformity Saddle Mountains CL6 46.44128 -117.00934 Grande Ronde R2 Tgr2 55.04 13.77 2.350 11.99 0.214 7.53 3.68 1.77 3.20 0.458 17 28 36 378 699 42 322 183 40 13.1 20 43 133 7 25 50 6 Taw Basalt Latah Formation CL7 46.44881 -117.00884 Grande Ronde N1 Tgn1 54.38 13.79 2.304 12.38 0.216 8.00 3.95 1.46 3.09 0.439 8 37 34 380 574 35 338 163 40 12.2 21 28 129 8 13 58 5 Tlm CL10 46.45839 -117.0198 Grande Ronde R2 Tgr2 53.56 14.31 1.725 11.66 0.194 9.12 5.13 1.20 2.83 0.276 22 84 35 316 481 28 304 140 39 11.7 20 57 105 3 25 41 4 Taw Twl Twld CL-1000 46.45721 -117.02319 Grande Ronde R2 Tgr2 53.80 14.80 1.649 9.90 0.178 9.96 5.54 0.95 2.96 0.263 38 128 40 309 469 16 307 131 31 10.9 20 66 100 3 16 24 5 Taw LON-1 46.46273 -116.96586 Grande Ronde R2 Tgr2 56.67 13.91 2.374 10.73 0.185 7.13 3.31 1.82 3.42 0.462 0 18 37 354 688 46 332 194 44 15.3 24 10 134 5 20 59 8 Taw Tli Taw LON-2 46.46303 -116.9689 Grande Ronde R2 Tgr2 55.35 13.79 2.532 11.81 0.35 7.07 3.48 1.72 3.42 0.469 8 18 40 399 665 45 307 186 44 14.2 18 19 127 7 27 55 5 Wanapum Basalt LON-3 46.46283 -116.97357 Grande Ronde R2 Tgr2 54.89 14.37 1.760 10.62 0.184 8.70 4.96 1.15 3.08 0.285 20 76 44 329 437 29 286 142 33 11.7 22 56 106 3 22 37 5 Taw Qls Tpr LON-4 46.46269 -116.98898 Priest Rapids Tpr 50.70 13.62 3.232 13.13 0.238 9.18 5.20 1.10 2.82 0.783 30 91 41 363 488 25 283 179 46 17.1 20 27 137 1 1 63 3 MIOCENE TERTIARY LON-10 46.46659 -116.9156 Lewiston Orchards Twl 48.71 15.09 2.211 12.19 0.200 11.38 6.83 0.44 2.44 0.514 77 266 37 288 452 6 254 156 34 18.7 18 49 101 2 14 522 Grand Ronde Basalt LON-11 46.46767 -116.90436 Asotin Taw 50.08 16.20 1.422 9.45 0.156 11.37 8.31 0.54 2.30 0.180 123 291 33 246 231 8 243 104 24 10.6 18 76 76 3 19 25 5 Qls LON-100 46.46195 -116.96162 Grande Ronde R2 Tgr2 55.16 13.89 2.004 11.54 0.222 7.95 4.21 1.47 3.15 0.392 2 31 35 387 607 35 331 163 41 12.7 22 52 129 4 18 53 6 Tgr 2 LON-101 46.45677 -116.96007 Grande Ronde R Tgr 55.17 13.74 2.077 12.23 0.184 7.35 4.19 1.40 3.32 0.335 0 30 32 353 535 37 312 163 33 12.7 21 6 122 3 18 34 7 Tgn 2 2 Tli Qls 1 LON-102 46.45614 -116.96169 Grande Ronde R2 Tgr2 54.96 14.44 1.721 10.64 0.177 8.78 4.89 1.11 3.02 0.260 4 33 36 300 417 27 330 143 30 11.0 21 30 105 5 14 38 1 Tgr1 Tpr LON-103 46.45545 -116.96402 Grande Ronde R2 Tgr2 54.98 13.84 2.018 12.12 0.220 7.88 4.07 1.35 3.14 0.392 1 32 38 366 577 38 334 165 41 12.9 23 48 124 6 26 44 6 Qls Imnaha Basalt LON-104 46.44973 -116.97032 Grande Ronde R2 Tgr2 54.62 13.64 2.126 12.78 0.208 7.49 4.12 1.33 3.32 0.362 0 30 35 349 514 34 311 160 36 12.5 24 10 121 6 11 44 6 Qls Tli Tpr Qls LON-105 46.46234 -116.96205 Grande Ronde R2 Tgr2 54.73 13.86 2.162 12.01 0.202 8.06 4.26 1.32 3.03 0.360 2 33 34 362 507 34 325 160 37 12.9 21 11 120 6 9 43 5 B Tim Qls Tli Taw Tgr2 LON-106 46.45936 -116.95625 Grande Ronde R2 Tgr2 55.99 14.37 2.118 9.81 0.191 8.17 4.15 1.66 3.14 0.404 5 29 33 333 590 42 342 165 36 13.5 22 23 121 2 31 37 5 Tpr LON-107 46.43439 -116.97625 Lower Monumental Tlm 50.39 13.70 2.976 14.13 0.226 8.70 4.99 1.46 2.77 0.657 6 36 23 329 477 32 346 180 35 27.9 20 7 136 3 44 82 5 Tli LON-404 Qls Taw Qls Tpr Tpr Qls Tpr LON-108 46.46259 -116.91256 Grande Ronde R2 Tgr2 54.98 13.80 2.540 12.13 0.197 7.31 3.63 1.82 3.14 0.458 6 29 26 404 678 47 318 185 40 14.7 21 15 131 12 25 50 8 m INTRODUCTION LON-109 46.42686 -116.92578 Priest Rapids Tpr 50.07 13.40 3.239 13.77 0.236 9.16 5.40 1.12 2.80 0.797 36 104 40 373 448 27 280 196 45 16.7 21 43 138 7 5 53 0 Tgr2 Tpr Tli LON-501 LON-110 46.42896 -116.93532 Priest Rapids Tpr 49.74 13.44 3.199 14.05 0.239 9.21 5.33 1.24 2.77 0.794 36 106 42 370 437 27 285 187 45 16.7 19 39 136 1 8 57 3 LON-403 N-503 LO LON-502 The bedrock geologic map of the Lewiston Orchards North quadrangle and Qls LON-402 LON-504 part of the Clarkston quadrangle represents a compilation of previous research LON-111 46.43219 -116.94487 Priest Rapids Tpr 50.37 13.53 3.276 13.55 0.235 9.34 5.03 1.08 2.78 0.808 32 106 48 372 713 31 305 185 45 16.6 22 43 138 7 15 61 8 Qls 3 Tpr LON-500 and additional field work. Distribution of the loess of the Palouse Formation LON-112 46.40834 -116.92472 Asotin Taw 50.11 16.13 1.420 9.46 0.160 11.31 8.28 0.49 2.46 0.176 124 280 29 244 191 12 241 107 22 11.1 18 87 80 5 3 30 0 Taw and some post-basalt gravel units are not illustrated in keeping with the LON-113 46.41274 -116.93497 Lapwai Taw 52.83 14.96 1.729 10.59 0.164 9.41 5.82 1.35 2.74 0.404 61 119 32 280 615 28 268 201 37 15.0 19 44 104 11 21 69 1 Tgr2 LON-506 Qls emphasis on bedrock geology.