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SAMPLE INFO : SG05-33
Sample ID:SG05-33
Station ID:SG05-33
Latitude:56.603311721288
Longitude:-169.60525354979
Datum:NAD83
Date Sampled:0000-00-00
Sample Type 1:Lava
Text Description:
St. George Island, Group 2 type rocks (From Chang and others, 2009): "Group 2 rocks are generally porphyritic, with fine-grained, holocrystalline groundmasses of olivine, clinopyroxene, plagioclase, and opaque minerals. Olivine is the most common phenocryst phase, although a few plagioclase phenocrysts are commonly observed, and some rocks also contain clinopyroxene phenocrysts. Olivine phenocrysts in two rocks range from Fo91 to Fo69 and average Fo80. As in the group 1 rocks, the olivine phenocrysts may be skeletal to euhedral. Clinopyroxene compositions in one group 2 rock have XMg=85-79, with an average value of 83, with average core and rim compositions of XMg=84 and 81, respectively. Some clinopyroxene grains exhibit sector-zoning."

References:
Petrogenesis of basaltic volcanic rocks from the Pribilof Islands, Alaska, by melting of metasomatically enriched depleted lithosphere, crystallization differentiation, and magma mixing

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedVolcanoEruptionLocation DescriptionText DescriptionSample IDMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-majorsREF majorsMETH majorsFe2O3/Fe203T origFeO/FeOT origVolatiles csvMETH volatilesCsRbBaSrLaCePrNdSmEuGdTbDyHoErTmYbLuYZrNbHfTaPbThUScVCrFeCoNiCuZnGaMoAsNaKRef trace1METH trace1RbBaSrLaCeNdSmEuGdDyErYbLuYZrNbPbThUScTiVCrNiCuZnGaRef trace2METH trace2Light csvHalogen csvother major csvother lile csvother ree csvother hfse csvother hpe csvother tm csvother misc csv
SG05-3356.603311721288-169.60525354979Unknown, Unknown0000-00-00St. George volcanic fieldGroup 2St. George Island, Group 2 type rocks (From Chang and others, 2009): "Group 2 rocks are generally porphyritic, with fine-grained, holocrystalline groundmasses of olivine, clinopyroxene, plagioclase, and opaque minerals. Olivine is the most common phenocryst phase, although a few plagioclase phenocrysts are commonly observed, and some rocks also contain clinopyroxene phenocrysts. Olivine phenocrysts in two rocks range from Fo91 to Fo69 and average Fo80. As in the group 1 rocks, the olivine phenocrysts may be skeletal to euhedral. Clinopyroxene compositions in one group 2 rock have XMg=85-79, with an average value of 83, with average core and rim compositions of XMg=84 and 81, respectively. Some clinopyroxene grains exhibit sector-zoning."SG05-33Whole Rock 45.088664944455 2.3434879507897 13.827012197709 11.75488409872 0.18443261079966 11.391563111156 10.223166360997 3.4699968539085 1.2561851118624 0.46842140655108 99.933524882XRF11.75488409872 0.158404392 16.06378925 209.4532117 519.0708457 23.53478446 44.72928506 5.254341312 22.85061955 5.72580832 1.97760017 5.591032328 0.867441084 4.917353748 0.90691584 2.236293039 0.295788885 1.749758144 0.259935491 23.03903882 157.716599 42.64324904 3.912984829 2.746913971 1.477417776 2.832071047 0.848055568 28.30670926 4882ICPMS 16.8 224.8 518.8 22.7 49.7 24 167.3 41.1 3.6 2.8 28 243 374.7 231.6 101 4882XRF

SAMPLE LOCATION

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