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SAMPLE INFO : 1796x
Sample ID:1796x
Station ID:47 ABy 103
Latitude:53.92913580654
Longitude:-168.03995369705
Datum:NAD83
Date Sampled:1947-01-01
Sample Type 2:Igneous
Text Description:
Mafic inclusion in the andesite composed of calcic augite, plagioclase, ferroan pargasite, magnetite, biotite, apatite, alkali feldspar and quartz. The amphibole and pyroxene form the major proportion (15 and 16 estimated modal percent respectively) of the inclusion, which is of generally equigranular texture. Titaniferous magnetite is disseminated within the calcic augite and pargasite and at grain boundaries. The amphiboles have light cores and dark brown rims. Biotite, quartz and feldspar appear as anhedral, interstitial grains, and some biotite appears to ba an alteration product of magnetite.

References:
The alkalic rock suite of Bogoslof Island, eastern Aleutian Arc, Alaska

GEOCHEM DATA
StationIDLatitudeLongitudeGeologistDateVisitedVolcanoEruptionLocation 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
47 ABy 10353.92913580654-168.03995369705Byers, F. M.1947-01-01Bogoslof1796-5-18Specimen collected in saddle of Castle Rock at an altitude of 100 feetMafic inclusion in the andesite composed of calcic augite, plagioclase, ferroan pargasite, magnetite, biotite, apatite, alkali feldspar and quartz. The amphibole and pyroxene form the major proportion (15 and 16 estimated modal percent respectively) of the inclusion, which is of generally equigranular texture. Titaniferous magnetite is disseminated within the calcic augite and pargasite and at grain boundaries. The amphiboles have light cores and dark brown rims. Biotite, quartz and feldspar appear as anhedral, interstitial grains, and some biotite appears to ba an alteration product of magnetite.1796xWhole Rock 4.8 1725 26.6 62.2 27.1 5.71 1.48 0.58 2.31 0.32 5.3 0.47 11.4 4.83 4.9 5 7 3 571INAA 129 730 166 571XRF

SAMPLE LOCATION

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