AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 81AYb 168

SAMPLE INFO : 81AYb 168
Sample ID:81AYb 168
Station ID:81AYb 168
Latitude:57.18760401
Longitude:-156.7037293
Datum:NAD83
Date Sampled:1981-01-01
Sample Type 1:Lava
Field Lithology:Andesite
Text Description:
Ugashik A-3. southeast side of Mount Kialagvik. Medium- to fine-grained, medium-gray (N5), hyalopilitic andesite (S; high-silica andesite G) porphyry containing very light gray (N 8) plagioclase phenocrysts and sparse dark-greenish-gray (5 G/Y 4/1) pyroxene phenocrysts. Major minerals are plagioclase (An 64), clinopyroxene, and lesser opaque oxides. Abundant phenocrysts in groundmass of glass and very fine grained plagioclase. Most phenocrysts and crystals have resorbed edges.

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 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
81AYb 16857.18760401-156.7037293Yount, M. E.1981-01-01 KialagvikUgashik A-3. southeast side of Mount KialagvikUgashik A-3. southeast side of Mount Kialagvik. Medium- to fine-grained, medium-gray (N5), hyalopilitic andesite (S; high-silica andesite G) porphyry containing very light gray (N 8) plagioclase phenocrysts and sparse dark-greenish-gray (5 G/Y 4/1) pyroxene phenocrysts. Major minerals are plagioclase (An 64), clinopyroxene, and lesser opaque oxides. Abundant phenocrysts in groundmass of glass and very fine grained plagioclase. Most phenocrysts and crystals have resorbed edges.81AYb 168Whole Rock 58.2 0.71 17 7.5 0.13 3.8 7 2.9 1.7 0.17 101.254092ICP4.63.5CO2=0.01; H2OP=0.45; H2OM=0.57ICP

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