AVO Logo
Site Map | FAQ |
Alaska Volcano Observatory
 
You are here: Home > Samples > 85CNS01

SAMPLE INFO : 85CNS01
Sample ID:85CNS01
Station ID:85CNS01
Latitude:61.205715
Longitude:-152.16138
Datum:NAD83
Date Sampled:1985-01-01
Sample Type 1:Lava
Sample Type 2:Block and Ash juvenile
Text Description:
Sample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan”; sample PF-01 of Nye and Turner (1990). Finely vesicular plag, cpx. Plag ~0.5 mm equant - perhaps like Pakushin (snowflake). Flow contains these bread-crusted blocks and radially fractured blocks. Blocks to 2 meters. Flow also contains older reddishly-altered rounded to angular blocks. These older blocks NOT breadcrusted or radially fractured. B&A flow appears to be channel fill in older previously altered debris avalanche material.

General Mineralogy Description:
Finely vesicular plag, cpx. Plag ~0.5 mm equant - perhaps like Pakushin (snowflake, arenal).

References:
Petrology, geochemistry, and age of the Spurr volcanic complex, eastern Aleutian arc
Geochemistry of some Quaternary lavas from the Aleutian Arc and Mt. Wrangell

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
85CNS0161.205715-152.16138Nye, C. J.1985-01-01 SpurrSample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan”; sample PF-01 of Nye and Turner (1990). Finely vesicular plag, cpx. Plag ~0.5 mm equant - perhaps like Pakushin (snowflake). Flow contains these bread-crusted blocks and radially fractured blocks. Blocks to 2 meters. Flow also contains older reddishly-altered rounded to angular blocks. These older blocks NOT breadcrusted or radially fractured. B&A flow appears to be channel fill in older previously altered debris avalanche material.85CNS01LavaWhole-rock 57.06 0.799 17.79 0.129 5.13 7.31 3.96 1.011 0.22 99.9113291XRF6.59 0.18227611 16.93737179 470 0 3 27 3.579793022 15.11249284 3.583290981 1.196473136 3.588305388 0.54530134 3.123235368 0.62758197 1.6508905 0.23498724 1.477267425 0.238208273 13.57886852 0 3.469494587 2.40603326 0.248245772 2 1 0.526423542 25 169 112 0 28 84 19 13291ICPMS: Cs, Rb, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, Nb, Hf, Ta, U; XRF: Ba, La, Ce, Pb, Th, Sc, V, Cr, Cu, Zn, Ga;
85CNS0161.205715-152.16138Nye, C. J.1985-01-01 SpurrSample of juvenile block from block-and-as flows deposited on the debris avalanche formed during flank collapse of ancestral Mt. Spurr (“pyroclastic fan”; sample PF-01 of Nye and Turner (1990). Finely vesicular plag, cpx. Plag ~0.5 mm equant - perhaps like Pakushin (snowflake). Flow contains these bread-crusted blocks and radially fractured blocks. Blocks to 2 meters. Flow also contains older reddishly-altered rounded to angular blocks. These older blocks NOT breadcrusted or radially fractured. B&A flow appears to be channel fill in older previously altered debris avalanche material.85CNS01LavaWhole-rock 57.07 0.8 17.73 6.64 0.13 5.01 7.38 3.95 1.04 0.24 100.531580XRF6.64LOI=-0.15XRF 19 682 12.1 92 5.5 43 1580XRF

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 G19AC00060 and G19AC00171.

Mention of trade names or commercial products does not constitute their endorsement by the U.S. Geological Survey.