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Text Description: Subvertical dike trending N20W and intruding into silicic material from Dome A at Site 2. Fine-grained, seriate, intergranular, altered, vesicular, holocrystalline with a matrix of mesostasis, opaque, feldspar, clinopyroxene, calcite alteration and other alteration. Plagioclase phenocrysts (An19-An56) are 1.3 - 0.05 mm; larger grains have sieve textured cores, complex zoning, embayments, and one grain has strongly poikilitic olivine or clinopyroxene. Orthopyroxene phenocrysts are 0.3 - 0.05 mm, subhedral, some have clinopyroxene rims and/or melt inclusions. Clinopyroxene phenocrysts are 0.55 - 0.5 mm. Olivine? phenocrysts are nearly completely altered. 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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94SJP29 | 62.43768247 | -143.1257474 | Preece, S. J. | 1994-00-00 | Skookum Creek | Nabesna B-5, T8N, R12E, S35 | Subvertical dike trending N20W and intruding into silicic material from Dome A at Site 2. Fine-grained, seriate, intergranular, altered, vesicular, holocrystalline with a matrix of mesostasis, opaque, feldspar, clinopyroxene, calcite alteration and other alteration. Plagioclase phenocrysts (An19-An56) are 1.3 - 0.05 mm; larger grains have sieve textured cores, complex zoning, embayments, and one grain has strongly poikilitic olivine or clinopyroxene. Orthopyroxene phenocrysts are 0.3 - 0.05 mm, subhedral, some have clinopyroxene rims and/or melt inclusions. Clinopyroxene phenocrysts are 0.55 - 0.5 mm. Olivine? phenocrysts are nearly completely altered. | 94SJP29 | Lava | Whole-rock | 54.88 | 0.78 | 18.1 | 5.64 | 0.15 | 4 | 8.7 | 3.62 | 1.18 | 0.34 | 98.55 | 55 | DCP | 6.13 | 5.64 | LOI=2.58 | DCP | 21.2 | 472 | 623 | 17 | 95 | 3.1 | 3.8 | 2.2 | 21 | 162 | 31 | 59 | 71 | 60 | 17.6 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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