AVO Sample Information

Alaska Volcano Observatory

You are here: Home > Samples > 9AM43

SAMPLE INFO : 9AM43

Sample ID:	9AM43
Station ID:	9AM43
Latitude:	57.714
Longitude:	-156.416
Datum:	NAD83
Date Sampled:	1979-01-01
Sample Type 1:	Lava
Field Lithology:	Dacite

Text Description:
Porphyritic hornblende dacite. Phenocrysts of normal and oscillatory-zoned plagioclase (26%), hornblende (4%), orthopyroxene (0.7%), clinopyroxene (0.5%), biotite (0.5%), and metallics (2.2%) in a fine-grained felsic groundmass (74%). Scarce olivine; less than 2% vesicles.

References:

Geology of the Ugashik-Mount Peulik volcanic center, 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
9AM43	57.714	-156.416	Miller, T. P.	1979-01-01		Ugashik caldera		Ugashik caldera, pre-caldera andesite and dacite dome breccias, west caldera rim	Porphyritic hornblende dacite. Phenocrysts of normal and oscillatory-zoned plagioclase (26%), hornblende (4%), orthopyroxene (0.7%), clinopyroxene (0.5%), biotite (0.5%), and metallics (2.2%) in a fine-grained felsic groundmass (74%). Scarce olivine; less than 2% vesicles.	9AM43	Lava			Whole-rock	62.1	0.57	17	4.84	0.13	2.7	6.2	3.5	1.6	0.12		3583	XRF	5.1	0.19	CO2=0.69; F=0.02; H2OP=0.29; H2OM=0.22	XRF: CO2, F; RAPIDA: H2OP, H2OM;		42	564	393	22	26													16	142	< 10								28			11	24	61						3583	XRF-EDS

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.