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Text Description: Agglutinate from large blocks that have fallen from higher up section at Site 7. This sample is from the contact between red scoriaceous material and gray massive material. Fine-grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase and alteration. Plagioclase phenocrysts (An45-An62) are up to 1 mm, some display sieve textured zones or rarely oscillatory zoning, and normal zoning is common. Orthopyroxene phenocrysts are up to 0.8 mm and frequently display clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.5 mm. An altered phase, up to 0.7 mm, is present. 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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93SJP14B | 62.40934712 | -143.0982457 | Preece, S. J. | 1993-00-00 | Skookum Creek | Nabesna B-5, T7N, R12E, S12 | Agglutinate from large blocks that have fallen from higher up section at Site 7. This sample is from the contact between red scoriaceous material and gray massive material. Fine-grained, holocrystalline, seriate porphyritic with a matrix of mesostasis, opaque, plagioclase and alteration. Plagioclase phenocrysts (An45-An62) are up to 1 mm, some display sieve textured zones or rarely oscillatory zoning, and normal zoning is common. Orthopyroxene phenocrysts are up to 0.8 mm and frequently display clinopyroxene rims. Clinopyroxene phenocrysts are up to 0.5 mm. An altered phase, up to 0.7 mm, is present. | 93SJP14B | Tephra Fall | Cumulate | Whole-rock | 55.51 | 0.87 | 17.78 | 6.48 | 0.1 | 4.74 | 8.51 | 3.24 | 1.2 | 0.12 | 99.65 | 55 | DCP | 7.12 | 6.48 | LOI=1.42 | DCP | 23.3 | 422 | 721 | 16 | 110 | 3.1 | 6.7 | 0.5 | 22.9 | 183 | 93 | 66 | 90 | 64 | 18 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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