AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 79AM55

SAMPLE INFO : 79AM55
Sample ID:79AM55
Station ID:79AM55
Latitude:57.719280036111
Longitude:-156.35909249155
Datum:NAD83
Date Sampled:1979-01-01
Sample Type 1:Lava
Field Lithology:Dacite
Text Description:
Porphyritic hornblende dacite. Phenocrysts of plagioclase (21%), quartz (6%), hornblende (3%), and trace amounts of biotite and orthopyroxene in a slightly vesiculated (6%) felsic groundmass (60%) with minor glass.

References:
Geology of the Ugashik-Mount Peulik volcanic center, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation 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
79AM5557.719280036111-156.35909249155Miller, T. P.1979-01-01 Ugashik calderaUgashik caldera, dacite dome IPorphyritic hornblende dacite. Phenocrysts of plagioclase (21%), quartz (6%), hornblende (3%), and trace amounts of biotite and orthopyroxene in a slightly vesiculated (6%) felsic groundmass (60%) with minor glass.79AM55Whole Rock 66.5 0.4 16.1 4.1 0.16 1.8 4.6 3.8 1.7 0.1 3583XRF1.82.5CO2=0.08; H2OP=0.52; H2OM=0.13XRF: CO2; RAPIDA: H2OP, H2OM; Cl2 V=0.05, M=XRF, R=3583;F V=0.02, M=XRF, R=3583;Rb V=45, M=XRF-EDS, R=3583;Sr V=345, M=XRF-EDS, R=3583;Ba V=647, M=XRF-EDS, R=3583;La V=22, M=XRF-EDS, R=3583;Ce V=39, M=XRF-EDS, R=3583;Zr V=117, M=XRF-EDS, R=3583;Nb V=15, M=XRF-EDS, R=3583;Y V=20, M=XRF-EDS, R=3583;Cr V=<20, M=XRF-EDS, R=3583;Ni V=<10, M=XRF-EDS, R=3583;Cu V=12, M=XRF-EDS, R=3583;Zn V=59, M=XRF-EDS, R=3583;

SAMPLE LOCATION

Contact AVO Privacy Accessibility Information Quality FOIA
URL: www.avo.alaska.edu/samples/sample_info.php
Page modified: July 14, 2014 13:37
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS