AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 91CND13b

SAMPLE INFO : 91CND13b
Sample ID:91CND13b
Station ID:91CND13b
Latitude:58.863
Longitude:-153.2822
Datum:NAD83
Date Sampled:1991-01-01
Sample Type 1:Lava
Sample Type 2:Sill
 Text Description:
Amphibole andesite sill. One of 4 to 5 sills intruding black silty shale exposed along the shore of Sukoi Bay, 15 km east of Douglas. Buff-weathering with gray-green interior, locally extensively weathered. Amphibole andesite containing ~ 15% brown, opacite-rimmed amphibole up to 4 x 1 cm (typically 1 x 0.2 cm); 35 % altered plagioclase phenocrysts, and patchy chloritic pseudomorphs after pyroxene in a microcrystalline matrix.

References:
Geochemistry of some Quaternary lavas from the Aleutian Arc and Mt. Wrangell

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
91CND13b58.863-153.2822Nye, C. J.1991-07-20 DouglasAmphibole andesite sill. One of 4 to 5 sills intruding black silty shale exposed along the shore of Sukoi Bay, 15 km east of Douglas. Buff-weathering with gray-green interior, locally extensively weathered. Amphibole andesite containing ~ 15% brown, opacite-rimmed amphibole up to 4 x 1 cm (typically 1 x 0.2 cm); 35 % altered plagioclase phenocrysts, and patchy chloritic pseudomorphs after pyroxene in a microcrystalline matrix.91CND13bLavaWhole-rock 60.13 0.647 18.3 0.152 2.79 6.5 4.87 0.522 0.168 99.5913291XRF5.92 0.13083 10 188 399 0 10 2.27798 10.54425 2.93673 1.02296 3.26593 0.58427 3.72095 0.78722 2.21507 0.3377 2.21331 0.35872 21 124 3.3 2.70027 0.13165 1 1 0.40035 13 128 12 4 20 80 19 13291ICPMS: Cs, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, U; XRF: Rb, Ba, Sr, Ce, Y, Zr, Nb, Pb, Th, Sc, V, Cr, Ni, Cu, Zn, Ga;

SAMPLE LOCATION

Contact AVO Privacy Accessibility Information Quality FOIA
URL: www.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 G22AC00137

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