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Text Description: Glassy block in talus from small knobs of Dome C higher up section at Site 7. Fine-grained, hypocrystalline, porphyritic with a matrix of cryptocrystalline material with perlitic cracks, feldspar, opaque and apatite?. Plagioclase phenocrysts (An44 - An55) are up to 0.22 mm. Orthopyroxene phenocrysts are up to 0.1 mm and are intensely pleochroic. Opaque phenocrysts are up to 0.3 mm. 97.7% matrix, 1.8% plagioclase, 0.1% orthopyroxene, 0.2% opaque, 0.3% 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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93SJP11 | 62.40851354 | -143.0535239 | Preece, S. J. | 1993-00-00 | Skookum Creek | Nabesna B-5; T7N, R13E, S8 | Glassy block in talus from small knobs of Dome C higher up section at Site 7. Fine-grained, hypocrystalline, porphyritic with a matrix of cryptocrystalline material with perlitic cracks, feldspar, opaque and apatite?. Plagioclase phenocrysts (An44 - An55) are up to 0.22 mm. Orthopyroxene phenocrysts are up to 0.1 mm and are intensely pleochroic. Opaque phenocrysts are up to 0.3 mm. 97.7% matrix, 1.8% plagioclase, 0.1% orthopyroxene, 0.2% opaque, 0.3% vesicles. | 93SJP11 | Lava | Whole-rock | 70.06 | 0.26 | 15.72 | 2.5 | 0.11 | 0.57 | 2 | 5.25 | 2.37 | 0.13 | 99.93 | 55 | DCP | 2.78 | 2.5 | LOI=1.02 | DCP | 41 | 836 | 312 | 18 | 290 | 8.9 | 4.8 | 2.2 | 1.9 | 2 | bdl | 2 | 3 | 65 | 16.3 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cu, Zn; |
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