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SAMPLE INFO : 73ARh34
Sample ID:73ARh34
Station ID:73ARh34
Latitude:62.1184
Longitude:-144.53888
Datum:NAD83
Date Sampled:1973-00-00
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Dacite
Text Description:
Dacite Dikes. Generally associated with rhyolite and rhyodacite domes (Qrd, Qrdd) of first cycle of activity, but some (secs. 14 and 15, T. 3 N., R. 4 E.) may be younger and related to Snider Peak activity. All dikes sampled are medium to dark gray and sparsely porphyritic with small phenocrysts of plagioclase, hornblende, and locally rare biotite and hypersthene in a dense pilotaxitic to trachytic or dark cryptocrystalline groundmass.

References:
Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex

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
73ARh3462.1184-144.53888Richter, D. H.1973-00-00 DrumWrangell Lava, Mount Drum, AlaskaDacite Dikes. Generally associated with rhyolite and rhyodacite domes (Qrd, Qrdd) of first cycle of activity, but some (secs. 14 and 15, T. 3 N., R. 4 E.) may be younger and related to Snider Peak activity. All dikes sampled are medium to dark gray and sparsely porphyritic with small phenocrysts of plagioclase, hornblende, and locally rare biotite and hypersthene in a dense pilotaxitic to trachytic or dark cryptocrystalline groundmass. 73ARh34LavaWhole-rock 61.8 0.54 18.59 4.66 0.08 2.65 5.79 4.52 1.19 0.16 99.755DCP5.134.66LOI=0.01DCP 496 667 11 93 11.7 105 20 21 49 64 55DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn; XRF: Zr, Ni;

SAMPLE LOCATION

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