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Text Description: 25-30 foot thick flow at the base of Site 12. Directly overlies 94SJP2 dipping at N60E, 45W. Fine grained, holocrystalline, trachytic, intergranular, seriate porphyritic with a matrix of green alteration, plagioclase, opaques, and clinopyroxene. Plagioclase phenocrysts (An40-An58) are up to 2 mm and some of the largest grains are zoned and riddled with alteration and clinopyroxene inclusions. Clinopyroxene phenocrysts are up to 0.25 mm. An altered phase is present (olivine?). 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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94SJP3 | 62.30155964 | -143.2554608 | Preece, S. J. | 1994-00-00 | Skookum Creek | Nabesna B-5, T6N, R12E, S18 | 25-30 foot thick flow at the base of Site 12. Directly overlies 94SJP2 dipping at N60E, 45W. Fine grained, holocrystalline, trachytic, intergranular, seriate porphyritic with a matrix of green alteration, plagioclase, opaques, and clinopyroxene. Plagioclase phenocrysts (An40-An58) are up to 2 mm and some of the largest grains are zoned and riddled with alteration and clinopyroxene inclusions. Clinopyroxene phenocrysts are up to 0.25 mm. An altered phase is present (olivine?). | 94SJP3 | Lava | Whole-rock | 51.93 | 1.5 | 17.53 | 8.61 | 0.16 | 6.11 | 9.45 | 3.65 | 0.35 | 0.19 | 98.74 | 55 | DCP | 9.36 | 8.61 | LOI=0.48 | DCP | 3.2 | 206 | 416 | 28 | 127 | 3 | 1.4 | < 0.5 | 31.1 | 220 | 126 | 44 | 43 | 81 | 18 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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