AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 88VS26

SAMPLE INFO : 88VS26
Sample ID:88VS26
Station ID:88VS26
Latitude:53.079110925728
Longitude:-168.6449524559
Datum:NAD83
Date Sampled:1988-01-01
Sample Type 1:Lava
Text Description:
Porphyritic lava flow immediately below 88VS25. South-southeast flank of Vsevidof. Exceptionally coarse porphyritic basaltic andesite. Phenocrysts of plagioclase (20%, up to 1.7 x 0.6 mm, few of which have spongy zones) and subequal amounts of clinopyroxene and orthopyroxene (5% each, up to 0.6 mm diameter) with sparse microphenocrysts of olivine set in a groundmass of small crystals and dark microcrystalline material. This sample also contain polymineralic clots of pyroxene surrounding corroded olivine and wormy opaque oxides and occasional megacrysts of euhedral plagioclase up to a centimeter long and 2—3 mm wide. The megacrysts are zoned, but do not contain extensive spongy regions.

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
88VS2653.079110925728-168.6449524559Nye, C. J.1988-01-01 VsevidofPorphyritic lava flow immediately below 88VS25. South-southeast flank of Vsevidof. Exceptionally coarse porphyritic basaltic andesite. Phenocrysts of plagioclase (20%, up to 1.7 x 0.6 mm, few of which have spongy zones) and subequal amounts of clinopyroxene and orthopyroxene (5% each, up to 0.6 mm diameter) with sparse microphenocrysts of olivine set in a groundmass of small crystals and dark microcrystalline material. This sample also contain polymineralic clots of pyroxene surrounding corroded olivine and wormy opaque oxides and occasional megacrysts of euhedral plagioclase up to a centimeter long and 2—3 mm wide. The megacrysts are zoned, but do not contain extensive spongy regions.88VS26LavaWhole-rock 55.1 1.427 17.32 0.172 4.14 8.07 3.72 1.049 0.274 100.113291XRF8.73 1.37 22 380 311 21 23 4.23903 19.57878 5.45 1.68303 6.06979 1.04 6.6 1.41 3.84812 0.54 3.47 0.56 35 131 6.9 3.8221 0.58472 9 0 1.05086 36 233 32 16 109 90 21 13291ICPMS: Cs, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, U; XRF: Rb, Ba, Sr, La, Ce, Y, Zr, Nb, Pb, 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 G19AC00060 and G19AC00171.

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