AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 47AC110

SAMPLE INFO : 47AC110
Sample ID:47AC110
Station ID:47AC110
Latitude:51.93569
Longitude:179.5848
Datum:NAD83
Date Sampled:1947-01-01
Sample Type 1:Lava
Sample Type 2:Flow
Text Description:
Specimen 47AC110 (131,000' E., 282,250' N.) is from a relatively short flow, which was sampled on the southeast side of the southeast peak of Mount Cerberus. It is a dark-gray (N 3) dense vitrophyre, with a seriate texture. About 25 percent of the rock is plagioclase (1 mm in size), averaging about An45; the other phenocrysts are augite, sparse hypersthene (En65,) in slender needles, apatite as pseudodichroic prisms, and magnetite. The groundmass consists of plagioclase microlites, augite, and magnetite in pale-brown glass.

References:
Geologic reconnaissance of Semisopochnoi Island, western Aleutian Islands, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedAge InfoVolcanoEruptionLocation DescriptionText DescriptionSample IDMaterialSiO2TiO2Al2O3FeOTMnOMgOCaONa2OK2OP2O5Total-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
47AC11051.93569179.5848Unknown, Unknown1947-01-01 CerberusSemisopochnoi Island, short flow on the southeast side of the southeast peak of Mount Cerberus (131,000' E, 282,250' N)Specimen 47AC110 (131,000' E., 282,250' N.) is from a relatively short flow, which was sampled on the southeast side of the southeast peak of Mount Cerberus. It is a dark-gray (N 3) dense vitrophyre, with a seriate texture. About 25 percent of the rock is plagioclase (1 mm in size), averaging about An45; the other phenocrysts are augite, sparse hypersthene (En65,) in slender needles, apatite as pseudodichroic prisms, and magnetite. The groundmass consists of plagioclase microlites, augite, and magnetite in pale-brown glass.47AC110Whole Rock 62.64 0.81 16.32 5.99 0.18 1.65 4.17 4.68 2.79 0.43 99.96368NN1.264.85H2OP=0.08; H2OM=0.01; CO2=0.01NN 67.8 312 6.7 745XRFB V=0.004, M=SPEC, R=368;Cl V=0.12, M=NN, R=368;F V=0.05, M=NN, R=368;Sr V=0.04, M=SPEC, R=368;Ba V=0.2, M=SPEC, R=368;K V=2.32, M=NN, R=745;Y V=0.01, M=SPEC, R=368;Zr V=0.02, M=SPEC, R=368;Cu V=0.002, M=SPEC, R=368;Co V=0.001, M=SPEC, R=368;Ga V=0.002, M=SPEC, R=368;V V=0.02, M=SPEC, R=368;Sc V=0.002, M=SPEC, R=368;Co V=10.9, M=XRF, R=201;
47AC11051.93569179.5848Unknown, Unknown1947-01-01 CerberusSemisopochnoi Island, short flow on the southeast side of the southeast peak of Mount Cerberus (131,000' E, 282,250' N)Specimen 47AC110 (131,000' E., 282,250' N.) is from a relatively short flow, which was sampled on the southeast side of the southeast peak of Mount Cerberus. It is a dark-gray (N 3) dense vitrophyre, with a seriate texture. About 25 percent of the rock is plagioclase (1 mm in size), averaging about An45; the other phenocrysts are augite, sparse hypersthene (En65,) in slender needles, apatite as pseudodichroic prisms, and magnetite. The groundmass consists of plagioclase microlites, augite, and magnetite in pale-brown glass.47AC110Whole Rock H2OP=0.08; H2OM=0.01; CO2=0.01NN 40.3 214 63 7.2 15 80.3 201XRFB V=0.004, M=SPEC, R=368;Cl V=0.12, M=NN, R=368;F V=0.05, M=NN, R=368;Sr V=0.04, M=SPEC, R=368;Ba V=0.2, M=SPEC, R=368;K V=2.32, M=NN, R=745;Y V=0.01, M=SPEC, R=368;Zr V=0.02, M=SPEC, R=368;Cu V=0.002, M=SPEC, R=368;Co V=0.001, M=SPEC, R=368;Ga V=0.002, M=SPEC, R=368;V V=0.02, M=SPEC, R=368;Sc V=0.002, M=SPEC, R=368;Co V=10.9, M=XRF, R=201;

SAMPLE LOCATION

Contact AVO Privacy Accessibility Information Quality FOIA
URL: www.avo.alaska.edu/samples/sample_info.php
Page modified: July 14, 2014 13:37
Contact Information: AVO Web Team

twitter @alaska_avo
facebook alaska.avo
email Receive volcano updates by email: USGS VNS