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Text Description: Plagioclase-phyric andesite float in the creek bed at Site 12. Fine grained, holocrystalline, seriate to glomeroporphyritic with a matrix of opaque, plagioclase, clinopyroxene, mesostasis and minor alteration. Plagioclase phenocrysts (An26 - An49) are up to 3.75 mm and frequently have sieve textured zones and are zoned; some have clinopyroxene inclusions. Orthopyroxene phenocrysts are up to 1.5 mm. Clinopyroxene phenocrysts are up to 0.7 mm. An altered phase is present. 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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94SJP8B | 62.30183754 | -143.2529607 | Preece, S. J. | 1994-00-00 | Skookum Creek | Nabesna B-5; T6N, R12E, S18 | Plagioclase-phyric andesite float in the creek bed at Site 12. Fine grained, holocrystalline, seriate to glomeroporphyritic with a matrix of opaque, plagioclase, clinopyroxene, mesostasis and minor alteration. Plagioclase phenocrysts (An26 - An49) are up to 3.75 mm and frequently have sieve textured zones and are zoned; some have clinopyroxene inclusions. Orthopyroxene phenocrysts are up to 1.5 mm. Clinopyroxene phenocrysts are up to 0.7 mm. An altered phase is present. | 94SJP8B | Lava | Whole-rock | 57.7 | 0.84 | 18.11 | 5.78 | 0.1 | 4.28 | 7.31 | 4 | 1.28 | 0.27 | 100 | 55 | DCP | 6.38 | 5.78 | LOI=0.37 | DCP | 24.1 | 449 | 531 | 20 | 144 | 4.4 | 4.2 | 1.3 | 18.9 | 151 | 55 | 63 | 59 | 63 | 17.8 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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