AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
You are here: Home > Samples > 93SJP66

Sample ID:93SJP66
Station ID:93SJP66
Date Sampled:1993-00-00
Sample Type 1:Lava
Sample Type 2:Dike
Field Lithology:Andesite
Text Description:
At least 3 thick dike, trending N45W, that is at the base of the Dome F at Site 4 and then cuts up through the unit nA1. Fine-grained, holocrystalline, weakly pilotaxitic, seriate to glomeroporphyritic, with a matrix of yellow-green alteration, opaque, feldspar and calcite. Plagioclase phenocrysts (An31 - An45) are up to 1.95 mm and some have complex zoning, resorbed rims, sieve textured zones, and clinopyroxene inclusions. Clinopyroxene phenocrysts are up to 0.9 mm and are mostly altered. Opaque 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
93SJP6662.41629208-143.158523Preece, S. J.1993-00-00 Skookum CreekNabesna B-5; T7N, R12E, S393SJP66LavaWhole-rock 60.72 0.85 16.58 5.21 0.13 3.89 5.78 3.85 1.3 0.33 10055DCP5.765.21LOI=1.32DCP 13.7 530 557 20 188 6.2 5 1.6 13.8 121 61 49 32 62 16.8 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.