|
Text Description: Porphyritic plagioclase-orthopyroxene-clinopyroxene dacite (S; high-silica andesite G) flow. Weakly foliated phenocrysts of plagioclase (An 58) in a glassy groundmass. Grain boundaries and fractures in some clinopyroxene are altered to opaque minerals. Larger phenocrysts are fractured and shattered. Rare lithic (?) fragments. Rounded quartz phenocrysts in reaction relation with groundmass. 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 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
81ARj 16 | 57.175936113444 | -156.76039573371 | Riehle, J. R. | 1981-01-01 | Kialagvik | Ugashik A-3, Mount Kialagvik | Porphyritic plagioclase-orthopyroxene-clinopyroxene dacite (S; high-silica andesite G) flow. Weakly foliated phenocrysts of plagioclase (An 58) in a glassy groundmass. Grain boundaries and fractures in some clinopyroxene are altered to opaque minerals. Larger phenocrysts are fractured and shattered. Rare lithic (?) fragments. Rounded quartz phenocrysts in reaction relation with groundmass. | 81ARj 16 | Lava | Whole-rock | 61.2 | 0.78 | 17.4 | 6.24 | 0.11 | 2.68 | 6.53 | 3.03 | 1.78 | 0.17 | 98.43 | 4092 | XRF | 3.4 | 3.02 |
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.