AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 73-ARh-101

SAMPLE INFO : 73-ARh-101
Sample ID:73-ARh-101
Station ID:73-ARh-101
Latitude:62.0561
Longitude:-143.2491
Datum:NAD83
Date Sampled:1973-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Text Description:
Basalt and basaltic andesite flows. Dense thin to thick extensive flows, locally exhibiting pronounced columnar jointing. Rocks are chiefly gray to dark-gray olivine basalts containing abundant phenocrysts of olivine, with minor hypersthene, in a felty to intergranular matrix of augite and plagioclase. Indicated source areas are the Ice Fields Plateau, the northeastern part of Jaeger Mesa, and an eruptive center in the southeast corner of the Nabesna B-5 quadrangle. K-Ar date (M.A. Lanphere, written commun., 1974) on whole rock indicates age of 0.89 +/- 0.21 m.y. (Sample 73-ARh-99)

References:
Geologic map of the Nabesna A-5 quadrangle, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDSample Type 1Sample Type 2Final 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
73-ARh-10162.0561-143.2491Richter, D. H.1973-00-00 Nabesna A-5 quadrangle; Wrangell Lava; Wrangell Volcanic Field. lat long points derived from paper map. Sample from Ice Fields Plateau and associated eruptive centers.Basalt and basaltic andesite flows. Dense thin to thick extensive flows, locally exhibiting pronounced columnar jointing. Rocks are chiefly gray to dark-gray olivine basalts containing abundant phenocrysts of olivine, with minor hypersthene, in a felty to intergranular matrix of augite and plagioclase. Indicated source areas are the Ice Fields Plateau, the northeastern part of Jaeger Mesa, and an eruptive center in the southeast corner of the Nabesna B-5 quadrangle. K-Ar date (M.A. Lanphere, written commun., 1974) on whole rock indicates age of 0.89 +/- 0.21 m.y. (Sample 73-ARh-99)73-ARh-101LavaWhole-rock 57.6 0.8 17.8 5.9 0.11 5.7 7.2 2.9 1 0.12 99.724537RAPIDA2.43.7H2O=0.79RAPIDA

SAMPLE LOCATION

Contact AVO Privacy Accessibility Information Quality FOIA
URL: avo.alaska.edu/samples/sample_info.php
Page modified: August 1, 2017 15:29
Contact Information: AVO Web Team

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

This website is supported by the U.S. Geological Survey under Cooperative Agreement Grant G19AC00060 and G19AC00171.

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.