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Text Description: Ten foot thick flow exposed along west side of Pass Creek. Fine grained, holocrystalline, pilotaxitic, intergranular, porphyritic with a matrix of plagioclase, opaque, clinopyroxene and alteration. Plagioclase phenocrysts (An45-An57) are up to 2.0 mm, both normal and oscillatory zoning is present. Olivine phenocrysts are up to 1.2 mm, some are totally altered. Clinopyroxene phenocrysts are up to 0.75 mm. Mode: 89.7% matrix, 2.2% plagioclase, 2.7% olivine, 0.1% opaque, 5.3% alteration. 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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93SJP52 | 62.30489243 | -143.2785168 | Preece, S. J. | 1993-00-00 | Skookum Creek | Nabesna B-5, T6N, R11E, S13 | Ten foot thick flow exposed along west side of Pass Creek. Fine grained, holocrystalline, pilotaxitic, intergranular, porphyritic with a matrix of plagioclase, opaque, clinopyroxene and alteration. Plagioclase phenocrysts (An45-An57) are up to 2.0 mm, both normal and oscillatory zoning is present. Olivine phenocrysts are up to 1.2 mm, some are totally altered. Clinopyroxene phenocrysts are up to 0.75 mm. Mode: 89.7% matrix, 2.2% plagioclase, 2.7% olivine, 0.1% opaque, 5.3% alteration. | 93SJP52 | Lava | Whole-rock | 51.83 | 1.68 | 17.03 | 8.82 | 0.14 | 6.01 | 8.44 | 3.74 | 1.16 | 0.35 | 98.67 | 55 | DCP | 9.58 | 8.82 | LOI=0.79 | DCP | 14.3 | 407 | 722 | 24.9 | 54 | 25.9 | 4.9 | 1.7 | 4.5 | 3.9 | 2.1 | 1.9 | 0.3 | 23 | 174 | 8.4 | 4.1 | 0.5 | 24.9 | 236 | 103 | 60 | 64 | 80 | 18.8 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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