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Text Description: Rounded block from a palagonitized tuff at Gutbuster. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of devitrified brown glass and plagioclase. Plagioclase phenocrysts (An38, An55 - An61) are up to 4.37 mm; both normal and oscillatory zoning are present; grains are occasionally sieve textured with brown melt inclusions. Orthopyroxene phenocrysts are up to 2.87 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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94SJP64 | 62.28100341 | -143.1626827 | Preece, S. J. | 1994-00-00 | Skookum Creek | Nabesna B-5; T6N, R12E, S22 | Rounded block from a palagonitized tuff at Gutbuster. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of devitrified brown glass and plagioclase. Plagioclase phenocrysts (An38, An55 - An61) are up to 4.37 mm; both normal and oscillatory zoning are present; grains are occasionally sieve textured with brown melt inclusions. Orthopyroxene phenocrysts are up to 2.87 mm. | 94SJP64 | Tuff | Dike | Whole-rock | 57.98 | 0.74 | 16.82 | 5.83 | 0.1 | 5.77 | 7.11 | 3.59 | 1.13 | 0.21 | 100.03 | 55 | DCP | 6.43 | 5.83 | LOI=0.71 | DCP | 17.7 | 443 | 633 | 15 | 111 | 4.4 | 2.7 | 1.5 | 16.9 | 140 | 211 | 128 | 52 | 63 | 17 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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