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Text Description: Blocky, rubbly outcrop of Dome D at the top of Site 12. Fine grained, weakly porphyritic with a matrix of symplectic feldspar and quartz. Phenocrysts of feldspar are present. There are several small blue, green and brown microphenocrysts present. Electron microprobe analysis indicates that color is a poor guide to determining what the microphenocrysts are. The EMP analyses are amphibole-like, arfvedsonite? and astrophyllite?. Apatite needles are also 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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94SJP60 | 62.29155905 | -143.2351828 | Preece, S. J. | 1994-00-00 | Skookum Creek | Nabesna B-5; T6N, R12E, S20 | Blocky, rubbly outcrop of Dome D at the top of Site 12. Fine grained, weakly porphyritic with a matrix of symplectic feldspar and quartz. Phenocrysts of feldspar are present. There are several small blue, green and brown microphenocrysts present. Electron microprobe analysis indicates that color is a poor guide to determining what the microphenocrysts are. The EMP analyses are amphibole-like, arfvedsonite? and astrophyllite?. Apatite needles are also present. | 94SJP60 | Lava | Whole-rock | 75.81 | 0.09 | 12.81 | 1.6 | 0.07 | 0.1 | 0.14 | 5.25 | 4.15 | bdl 0 | 99.69 | 55 | DCP | 1.78 | 1.6 | LOI=0.06 | DCP | 71 | 393 | 1 | 47.7 | 100.6 | 43.7 | 8.4 | 0.4 | 8.6 | 9.8 | 5.2 | 5.9 | 0.9 | 57 | 457 | 22.4 | 13 | 3.2 | 7.5 | 17 | bdl | 1 | 5 | 91 | 21.2 | 55 | XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, La, Ce, Nd, Sm, Eu, Gd, Dy, Er, Yb, Lu, Sc, V; MX: Sr, Y, Cu, Zn; |
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