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SAMPLE INFO : 81ARj 13b
Sample ID:81ARj 13b
Station ID:81ARj 13
Latitude:57.724
Longitude:-156.37
Datum:NAD83
Date Sampled:1981-01-01
Sample Type 1:Lava
Field Lithology:Dacite
Text Description:
inclusion from sample 81ARj 13. Porphyritic hornblende-biotite dacite. Vesicular, flow-foliated glassy groundmass contains rounded phenocrysts of plagioclase and quartz. Dominant mafic is dark-green hornblende, abundant biotite after hornblende, and no orthopyroxene as compared to sample 81ARj 13. Plagioclase is albite twinned and has rare Carlsbad twins.

References:
Map and tables showing geochronology and whole-rock geochemistry of selected samples, Ugashik and part of Karluk quadrangles, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final UnitMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
81ARj 1357.724-156.37Riehle, J. R.1981-01-01 Ugashik calderaUgashik C-2, Ugashik Caldera, domeinclusion from sample 81ARj 13. Porphyritic hornblende-biotite dacite. Vesicular, flow-foliated glassy groundmass contains rounded phenocrysts of plagioclase and quartz. Dominant mafic is dark-green hornblende, abundant biotite after hornblende, and no orthopyroxene as compared to sample 81ARj 13. Plagioclase is albite twinned and has rare Carlsbad twins.81ARj 13bLavaWhole-rock 51 0.87 19.3 8.58 0.16 5.79 10.6 2.48 0.69 0.13 99.474092XRF2.136.6

SAMPLE LOCATION

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