AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > AK-81-38

SAMPLE INFO : AK-81-38
Sample ID:AK-81-38
Station ID:AK-81-38
Latitude:54.13308
Longitude:-165.98555
Datum:NAD83
Date Sampled:1981-01-01
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Andesite
Text Description:
Partially altered porphyritic andesite dike. The rock contains plagioclase, clinopyroxene, and opaque phenocrysts in a fine-grained trachytic groundmass. The phenocrysts are usually in the form of crystal clots.

References:
The igneous petrology and geochemistry of northern Akutan Island, 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
AK-81-3854.13308-165.98555Unknown, Unknown1981-01-01AkutanHot Springs Bay Valley, Eastern Akutan IslandPartially altered porphyritic andesite dike. The rock contains plagioclase, clinopyroxene, and opaque phenocrysts in a fine-grained trachytic groundmass. The phenocrysts are usually in the form of crystal clots.AK-81-38Whole Rock 58.16 1.2 16.66 8.39 0.2 2.65 5.98 4.19 2.27 0.35 95.931876XRF2.965.36

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