AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 91CND22

SAMPLE INFO : 91CND22
Sample ID:91CND22
Station ID:91CND22
Latitude:58.966284
Longitude:-153.600875
Datum:NAD83
Date Sampled:1991-01-01
Sample Type 1:Lava
Text Description:
Sample from isolated lava outcrop at 200 ft elevation in striped glacier valley Porphyritic andesite. ~60% phenocrysts and microphenocrysts of plagioclase (up to 1.0 x 0.3 mm), and pyroxene (typically 0.6 x 0.3 mm), in a groundmass composed of about 50% brown glass and microphenocrysts on microlites of plagioclase, pyroxene, and opaque oxides. Pl:px ~ 3:2. A minority of the plagioclase phenocrysts have sieved zones, the rest are nearly free of disequilibrium textures.

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
91CND2258.966284-153.600875Nye, C. J.1991-07-25 DouglasSample from isolated lava outcrop at 200 ft elevation in striped glacier valley Porphyritic andesite. ~60% phenocrysts and microphenocrysts of plagioclase (up to 1.0 x 0.3 mm), and pyroxene (typically 0.6 x 0.3 mm), in a groundmass composed of about 50% brown glass and microphenocrysts on microlites of plagioclase, pyroxene, and opaque oxides. Pl:px ~ 3:2. A minority of the plagioclase phenocrysts have sieved zones, the rest are nearly free of disequilibrium textures.91CND22LavaWhole-rock 61.17 0.663 17.16 0.109 3.59 6.95 3.72 1.302 0.108 100.5913291XRF5.23 4.02786 44 370 276 0 20 2.63907 11.88939 3.26317 0.91732 3.5714 0.64026 3.992 0.85288 2.36982 0.36009 2.28254 0.36659 23 115 2.1 3.03298 0.15861 4 3 1.48518 27 159 32 17 61 56 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: 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.