AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 97S-CN-35

SAMPLE INFO : 97S-CN-35
Sample ID:97S-CN-35
Station ID:97S-CN-35
Latitude:54.692110528
Longitude:-163.999984262
Datum:NAD83
Date Sampled:1997-00-00
Sample Type 1:pyroclastic density current
Sample Type 2:Hand-picked dense juvenile material
Field Lithology:Basaltic Andesite
Text Description:
Lava pod in post fisher? Ignimbrite (not equiv of CN32 - too much cpx, ol). Basalt w/ 30% phenos of pl~=cpx~=ol to 3 mm| field lithology: basaltic andesite| vent type: | dist. to summit in km: -- | series: LRB (removed stats)|azimuth --
Schaefer et al. reinterpret this unit as reworked volcaniclastics and not an ignimbrite. The chemistry matches that of other Pleistocene lavas and Holocene cinder cones and it is not noted or exposed elsewhere. We interpret it as upper flank lahar deposits containing reworked volcaniclastics.

References:
Volcanism on Unimak Island, Alaska, USA: a special focus on Shishaldin and Fisher volcanoes

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
97S-CN-3554.692110528-163.999984262Nye, C. J.1997-00-00 ShishaldinLava pod in post fisher? Ignimbrite (not equiv of CN32 - too much cpx, ol). Basalt w/ 30% phenos of pl~=cpx~=ol to 3 mmLava pod in post fisher? Ignimbrite (not equiv of CN32 - too much cpx, ol). Basalt w/ 30% phenos of pl~=cpx~=ol to 3 mm| field lithology: basaltic andesite| vent type: | dist. to summit in km: -- | series: LRB (removed stats)|azimuth -- Schaefer et al. reinterpret this unit as reworked volcaniclastics and not an ignimbrite. The chemistry matches that of other Pleistocene lavas and Holocene cinder cones and it is not noted or exposed elsewhere. We interpret it as upper flank lahar deposits containing reworked volcaniclastics.97S-CN-35pyroclastic density currentBombWhole-rock 51.31 1.23 17.14 8.75 0.18 6.9 10.84 2.7 0.77 0.19 97.433574XRF8.75 0.581085575 12.5591998 245.4527368 510.4842993 8.848894389 19.77906948 2.913962749 13.10832443 3.560255435 1.276097225 3.608045105 0.612615826 3.676401016 0.752613238 2.029482049 0.295491883 1.793512198 0.279241682 18.72774079 69.30552573 2.62520878 2.115401889 0.197630777 3.597169681 1.692863513 0.78307018 34.57606856 256 218 51 59 71 21 3574ICPMS: Cs, Rb, Ba, Sr, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Zr, Nb, Hf, Ta, Pb, Th, U, Sc; XRF: 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.