AVO Sample Information

Alaska Volcano Observatory

You are here: Home > Samples > 81AWs 271

SAMPLE INFO : 81AWs 271

Sample ID:	81AWs 271
Station ID:	81AWs 271
Latitude:	57.724
Longitude:	-156.37
Datum:	NAD83
Date Sampled:	1981-01-01
Sample Type 1:	Lava
Field Lithology:	Dacite

Text Description:
Light-gray (N 7), vesicular biotite-plagioclase dacite porphyry. Major phases are biotite, quartz, hornblende, orthopyroxene, plagioclase (An 30*), and glass. Weakly developed flow foliation, numerous dark-gray (N 3) xenoliths in hand sample and thin section. Dome in post-glacial (?) Ugashik caldera.

References:

Map and tables showing geochronology and whole-rock geochemistry of selected samples, Ugashik and part of Karluk quadrangles, Alaska

GEOCHEM DATA

StationID	Latitude	Longitude	Geologist	DateVisited	Age Info	Volcano	Eruption	Location Description	Text Description	Sample ID	Sample Type 1	Sample Type 2	Final Unit	Material	SiO2	TiO2	Al2O3	FeOT	MnO	MgO	CaO	Na2O	K2O	P2O5	Total-majors	REF majors	METH majors	Fe2O3/Fe203T orig	FeO/FeOT orig	Volatiles csv	METH volatiles	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	V	Cr	Fe	Co	Ni	Cu	Zn	Ga	Mo	As	Na	K	Ref trace1	METH trace1	Rb	Ba	Sr	La	Ce	Nd	Sm	Eu	Gd	Dy	Er	Yb	Lu	Y	Zr	Nb	Pb	Th	U	Sc	Ti	V	Cr	Ni	Cu	Zn	Ga	Ref trace2	METH trace2	Light csv	Halogen csv	other major csv	other lile csv	other ree csv	other hfse csv	other hpe csv	other tm csv	other misc csv
81AWs 271	57.724	-156.37	Wilson, F. H.	1981-01-01		Ugashik caldera		Ugashik C-2, Ugashik caldera	Light-gray (N 7), vesicular biotite-plagioclase dacite porphyry. Major phases are biotite, quartz, hornblende, orthopyroxene, plagioclase (An 30*), and glass. Weakly developed flow foliation, numerous dark-gray (N 3) xenoliths in hand sample and thin section. Dome in post-glacial (?) Ugashik caldera.	81AWs 271	Lava			Whole-rock	65.9	0.42	16.7	4.14	0.13	1.72	4.82	3.76	1.78	0.13	99.61	4092	XRF	1.96	2.36	CO2=0.12; H2OP=0.28; H2OM=0.1	XRF			700	700	0														30	200	0			< 5	0		15	200	0	5	20	5	< 5	< 5		0	0			4092	ES: Ba, Sr, Y, Zr, Sc, V, Fe, Co, Ni; AAS: Pb, Cu, Zn;

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

@alaska_avo

alaska.avo

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.