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Text Description: Dike, trending ~N10°W, cutting through silicic material at Site 5. Fine-grained, hypocrystalline, intersertal, intergranular, seriate porphyritic with a matrix of mesostasis, brown glass, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An43 - An57 ,one grain An26) are up to 1.75 mm and complex zoning with prussian blue extinction is common, some have sieve textured intermediate zones, and there are occasional resorption embayments. Orthopyroxene phenocrysts are up to 0.9 mm with occasional clinopyroxene rims. Clinopyroxene phenocrysts are up to 1.8 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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93SJP40 | 62.44490517 | -143.1235258 | Preece, S. J. | 1993-00-00 | Skookum Creek | Nabesna B-5; T8N, R12E, S26 | Dike, trending ~N10°W, cutting through silicic material at Site 5. Fine-grained, hypocrystalline, intersertal, intergranular, seriate porphyritic with a matrix of mesostasis, brown glass, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An43 - An57 ,one grain An26) are up to 1.75 mm and complex zoning with prussian blue extinction is common, some have sieve textured intermediate zones, and there are occasional resorption embayments. Orthopyroxene phenocrysts are up to 0.9 mm with occasional clinopyroxene rims. Clinopyroxene phenocrysts are up to 1.8 mm. | 93SJP40 | Lava | Whole-rock | 58.08 | 1.1 | 17.3 | 6.41 | 0.13 | 4.1 | 6.86 | 4.2 | 1.44 | 0.23 | 100.12 | 55 | DCP | 7.08 | 6.41 | LOI=0.14 | DCP | 24.7 | 497 | 542 | 23 | 194 | 6.7 | 3.4 | 2 | 18.5 | 171 | 72 | 38 | 48 | 69 | 17.8 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; |
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