AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > Barth_1956_6

SAMPLE INFO : Barth_1956_6
Sample ID:Barth_1956_6
Station ID:Barth_1956_6
Latitude:56.58
Longitude:-169.63
Datum:NAD83
Date Sampled:1948-01-01
Sample Type 1:Lava
Sample Type 2:Flow
Text Description:
Sample of a columnar, dense flow of chrysophyric hyalobasanite. The phenocrysts are fresh, euhedral olivine crystals. The groundmass consists of a brownish glass in a state of devitrification containing small grains of olivine, augite, plagioclase, and magnetite. Many secondary growths of chalcedony and zeolite occur throughout the glass.

References:
Geology and petrology of the Pribilof Islands, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2geologic 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
Barth_1956_6 56.58 -169.63 Barth, T. F. W. 1948-01-01 St. George volcanic field 2/3 of a mile south of Tolstoi Point, St. George Island Sample of a columnar, dense flow of chrysophyric hyalobasanite. The phenocrysts are fresh, euhedral olivine crystals. The groundmass consists of a brownish glass in a state of devitrification containing small grains of olivine, augite, plagioclase, and magnetite. Many secondary growths of chalcedony and zeolite occur throughout the glass. Barth_1956_6 Lava Whole Rock 41.9 1.26 14.76 12.08 0.18 12.69 9.98 2.97 1.23 0.67 99.8301NN3.388.97H2OM=1.1; H2OP=1.15NN

SAMPLE LOCATION

Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/samples/sample_info.php
Page modified: December 2, 2016 10:12
Contact Information: AVO Web Team

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