|
Text Description: Platy to rubbly outcrop on the top of Site 5. Fine grained, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of brown glass, mesostasis, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An40 - An63) are up to 3.1 mm and commonly have sieve textured zones, oscillatory zoning, resorbed rims or resorption embayments. Olivine phenocrysts are up to 1.0 mm. Orthopyroxene phenocrysts are up to 1.0 mm and some have clinopyroxene rims and/or opaque inclusions. Clinopyroxene phenocrysts are up to 0.8 mm. Opaque phenocrysts are up to 0.2 mm. 70.4% matrix, 22.6% plagioclase, 0.6% olivine, 2.1% clinopyroxene, 3.2% orthopyroxene, 0.1% opaque, 1.0% 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 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
94SJP44A | 62.475 | -143.1596 | Preece, S. J. | 1994-00-00 | Skookum Creek | Nabesna B-5; T8N, R12E, S27 | Platy to rubbly outcrop on the top of Site 5. Fine grained, hypocrystalline, intersertal, seriate to glomeroporphyritic with a matrix of brown glass, mesostasis, opaque, plagioclase and clinopyroxene. Plagioclase phenocrysts (An40 - An63) are up to 3.1 mm and commonly have sieve textured zones, oscillatory zoning, resorbed rims or resorption embayments. Olivine phenocrysts are up to 1.0 mm. Orthopyroxene phenocrysts are up to 1.0 mm and some have clinopyroxene rims and/or opaque inclusions. Clinopyroxene phenocrysts are up to 0.8 mm. Opaque phenocrysts are up to 0.2 mm. 70.4% matrix, 22.6% plagioclase, 0.6% olivine, 2.1% clinopyroxene, 3.2% orthopyroxene, 0.1% opaque, 1.0% vesicles. | 94SJP44A | Lava | Whole-rock | 58.07 | 0.83 | 18.59 | 5.65 | 0.1 | 3.91 | 7.22 | 4 | 1.24 | 0.21 | 99.91 | 55 | DCP | 6.23 | 5.65 | LOI=0.15 | DCP | 21.7 | 456 | 546 | 10.4 | 21.1 | 11.3 | 2.5 | 0.9 | 2.5 | 2.6 | 1.3 | 1.3 | 0.2 | 18 | 115 | 3.3 | 3.9 | 1.9 | 17.3 | 147 | 40 | 35 | 35 | 65 | 17.7 | 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, Cr, Cu, Zn; |
This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G22AC00137
Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.