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Text Description: Dike trending S35E at Site 9. Fine-grained, vesicular, diktytaxitic, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene and plagioclase. Plagioclase phenocrysts (An34-An59) are up to 2.25 and the larger phenocrysts have sieved textured zones, tooth-like overgrowth rims or resorbed rims, oscillatory zoning, and pyroxene inclusion, while smaller grains display normal zoning. Olivine phenocrysts are up to 1.2 mm and some are slightly altered, resorbed edges are common, and a few have opaque inclusions. Clinopyroxene phenocrysts are up to 0.95 mm and a few have orthopyroxene cores. Orthopyroxene is up to 0.3 mm and altered. Mode: 63.0% matrix, 24.4% plagioclase, 2.0% olivine, 1.8% clinopyroxene, 0.3% orthopyroxene, 0.4% alteration, 8.1% vesicles. 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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93SJP4 | 62.36351051 | -143.0646 | Preece, S. J. | 1993-00-00 | Skookum Creek | Nabesna B-5, T7N, R13E, S30 | Dike trending S35E at Site 9. Fine-grained, vesicular, diktytaxitic, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque, clinopyroxene and plagioclase. Plagioclase phenocrysts (An34-An59) are up to 2.25 and the larger phenocrysts have sieved textured zones, tooth-like overgrowth rims or resorbed rims, oscillatory zoning, and pyroxene inclusion, while smaller grains display normal zoning. Olivine phenocrysts are up to 1.2 mm and some are slightly altered, resorbed edges are common, and a few have opaque inclusions. Clinopyroxene phenocrysts are up to 0.95 mm and a few have orthopyroxene cores. Orthopyroxene is up to 0.3 mm and altered. Mode: 63.0% matrix, 24.4% plagioclase, 2.0% olivine, 1.8% clinopyroxene, 0.3% orthopyroxene, 0.4% alteration, 8.1% vesicles. | 93SJP4 | Lava | Whole-rock | 56.5 | 0.8 | 18.53 | 6.26 | 0.12 | 4.76 | 7.89 | 3.93 | 0.89 | 0.19 | 100.23 | 55 | DCP | 6.92 | 6.26 | LOI=0.16 | DCP | 15.2 | 308 | 526 | 14 | 76 | 2.8 | < 0.5 | 1.3 | 19.5 | 157 | 95 | 74 | 53 | 62 | 17.1 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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