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Text Description: At least 50’ thick flow at Site 3. Fine-grained, vesicular, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque and yellow alteration. Plagioclase phenocrysts (An31 - An54) are up to 2.0 mm and a few have sieve textured cores or intermediate zones, complex zoning or resorption embayments; one grain is rounded with a tooth-like overgrowth. Orthopyroxene phenocrysts are up to 0.9 mm and have clinopyroxene rims, and a few have opaque inclusions. Clinopyroxene phenocrysts are up to 0.15 mm. 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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94SJP54 | 62.42768181 | -143.1301911 | Preece, S. J. | 1994-00-00 | Skookum Creek | Nabesna B-5; T8N, R12E, S35 | At least 50’ thick flow at Site 3. Fine-grained, vesicular, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque and yellow alteration. Plagioclase phenocrysts (An31 - An54) are up to 2.0 mm and a few have sieve textured cores or intermediate zones, complex zoning or resorption embayments; one grain is rounded with a tooth-like overgrowth. Orthopyroxene phenocrysts are up to 0.9 mm and have clinopyroxene rims, and a few have opaque inclusions. Clinopyroxene phenocrysts are up to 0.15 mm. | 94SJP54 | Lava | Whole-rock | 57.65 | 0.9 | 17.36 | 5.22 | 0.11 | 5 | 7.64 | 3.61 | 1.18 | 0.18 | 99.41 | 55 | DCP | 5.73 | 5.22 | LOI=1.17 | DCP | 22.8 | 477 | 556 | 17 | 127 | 5 | 3.1 | 1.4 | 20.2 | 165 | 118 | 68 | 52 | 61 | 17.3 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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