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Text Description: Blocky, rubbly outcrop from the summit of Dome A at Site 2. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of equigranular feldspar, quartz?, opaque, zircon and altered patches. Plagioclase phenocrysts are up to 2.0 mm. Symplectic intergrowths of feldspar and quartz are up to 0.15 mm. Opaque phenocrysts are up to 0.4 mm. Zircon phenocrysts are up to 0.2 mm. An altered phase up to 0.95 mm, amphibole? or biotite?, 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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93SJP33 | 62.43 | -143.0951917 | Preece, S. J. | 1993-00-00 | Skookum Creek | Nabesna B-5; T8N, R12E, S36 | Blocky, rubbly outcrop from the summit of Dome A at Site 2. Fine grained, vesicular, holocrystalline, porphyritic with a matrix of equigranular feldspar, quartz?, opaque, zircon and altered patches. Plagioclase phenocrysts are up to 2.0 mm. Symplectic intergrowths of feldspar and quartz are up to 0.15 mm. Opaque phenocrysts are up to 0.4 mm. Zircon phenocrysts are up to 0.2 mm. An altered phase up to 0.95 mm, amphibole? or biotite?, is present. | 93SJP33 | Lava | Whole-rock | 74.79 | 0.08 | 14.41 | 1.3 | 0.07 | 0.1 | 1.03 | 4.86 | 3.05 | 0.04 | 99.61 | 55 | DCP | 1.43 | 1.3 | LOI=0.29 | DCP | 52 | 944 | 160 | 16 | 110 | 8.7 | 5.4 | 3 | 1.7 | 1 | bdl | bdl | 1 | 50 | 15.3 | 55 | XRF: Rb, Zr, Nb, Th, U, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cu, Zn; |
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