AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
You are here: Home > Samples > 93SJP63

Sample ID:93SJP63
Station ID:93SJP63
Date Sampled:1993-00-00
Sample Type 1:Lava
Sample Type 2:Flow
Field Lithology:Andesite
Text Description:
Flow overlying 93SJP62 at Site 4. The flow is a 20 thick, massive outcrop that is more fractured than other flows in the section. Fine-grained, holocrystalline, intergranular, seriate porphyritic with a matrix of mesostasis, opaque and yellow alteration. Plagioclase phenocrysts (An32 - An48) are up to 2.0 mm and some have sieve textured cores or intermediate zones, complex zoning, a few grains display resorption embayments. Orthopyroxene phenocrysts are up to 0.95 mm and have clinopyroxene rims, and occasional opaque inclusions or sieve textured zones. Clinopyroxene phenocrysts are up to 0.35 mm.

Geochemical variation in the less than 5 Ma Wrangell Volcanic Field, Alaska, with an emphasis on the Skookum Creek volcanic complex

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
93SJP6362.41879224-143.1682451Preece, S. J.1993-00-00 Skookum CreekNabesna B-5; T7N, R12E, S393SJP63LavaWhole-rock 57.61 0.88 17.31 6.01 0.13 5 7.4 3.6 0.8 0.2 99.255DCP6.586.01LOI=0.96DCP 16.9 516 555 18 132 5.1 2.1 1 17.8 165 79 79 49 68 18 55XRF: Rb, Zr, Nb, Th, U, Ni, Ga; DCP: Ba, Sc, V; MX: Sr, Y, Cr, Cu, Zn;


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.