AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 46

SAMPLE INFO : 46
Sample ID:46
Station ID:46
Latitude:57.0179
Longitude:-157.1864
Datum:NAD83
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
Sample of basal deposit on the east side of Yantarni cone that is an andesitic lava flow approximately 50 m thick which may belong to the unit of older lava flows. Texture: Porphyry; groundmass <0.1 mm, mottled appearance due to variation in proportion of light and dark minerals. Alteration: Sparse hematite

References:
Petrography, chemistry, and geologic history of Yantarni volcano, Aleutian volcanic arc, Alaska

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
4657.0179-157.1864Unknown, UnknownYantarniEast side of Yantarni coneSample of basal deposit on the east side of Yantarni cone that is an andesitic lava flow approximately 50 m thick which may belong to the unit of older lava flows. Texture: Porphyry; groundmass <0.1 mm, mottled appearance due to variation in proportion of light and dark minerals. Alteration: Sparse hematite46Whole Rock 57.5 0.81 17.3 7.03 0.13 3.48 8.1 2.89 1.43 0.17Total calculated from mixed methods 100.3199XRF3.583.81LOI=1.11XRF

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