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Text Description: Plutonic country rock exposed at 4500 ft elevation on the ridge between Douglas and Fourpeaked, 4.5 km southwest of Douglas summit. Quartz monzodiorite countryrock. About 60% euhedral plagioclase (up to 2 mm long), 15% pale green to pale brown amphibole, 25% interstitial quartz and feldspar intergrowths, and minor opaque oxides. References: ![]() |
StationID | Latitude | Longitude | Geologist | DateVisited | Age Info | Volcano | Eruption | Location Description | Text Description | Sample ID | Sample Type 1 | Sample Type 2 | Final Unit | Material | SiO2 | TiO2 | Al2O3 | FeOT | MnO | MgO | CaO | Na2O | K2O | P2O5 | Total-majors | REF majors | METH majors | Fe2O3/Fe203T orig | FeO/FeOT orig | Volatiles csv | METH volatiles | Cs | Rb | Ba | Sr | La | Ce | Pr | Nd | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | Y | Zr | Nb | Hf | Ta | Pb | Th | U | Sc | V | Cr | Fe | Co | Ni | Cu | Zn | Ga | Mo | As | Na | K | Ref trace1 | METH trace1 | Rb | Ba | Sr | La | Ce | Nd | Sm | Eu | Gd | Dy | Er | Yb | Lu | Y | Zr | Nb | Pb | Th | U | Sc | Ti | V | Cr | Ni | Cu | Zn | Ga | Ref trace2 | METH trace2 | Light csv | Halogen csv | other major csv | other lile csv | other ree csv | other hfse csv | other hpe csv | other tm csv | other misc csv | |
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91CND29 | 58.835731 | -153.613909 | Nye, C. J. | 1991-07-25 | Douglas | Plutonic country rock exposed at 4500 ft elevation on the ridge between Douglas and Fourpeaked, 4.5 km southwest of Douglas summit. Quartz monzodiorite countryrock. About 60% euhedral plagioclase (up to 2 mm long), 15% pale green to pale brown amphibole, 25% interstitial quartz and feldspar intergrowths, and minor opaque oxides. | 91CND29 | Countryrock | Enclave/Inclusion | Whole-rock | 62.76 | 0.734 | 16.07 | 0.098 | 3.44 | 5.82 | 3.58 | 1.938 | 0.119 | 98.55 | 13291 | XRF | 5.43 | 1.05192 | 57 | 341 | 260 | 2 | 36 | 3.0618 | 13.41108 | 3.61589 | 0.86239 | 4.0307 | 0.70847 | 4.48068 | 0.90749 | 2.48066 | 0.36704 | 2.29818 | 0.34488 | 26 | 152 | 2.7 | 0.35305 | 0.19531 | 3 | 3 | 1.12131 | 22 | 137 | 43 | 27 | 23 | 32 | 15 | 13291 | ICPMS: Cs, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, U; XRF: Rb, Ba, Sr, La, Ce, Y, Zr, Nb, Pb, Th, Sc, V, Cr, Ni, Cu, Zn, Ga; |
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