AVO Sample Information

Alaska Volcano Observatory

You are here: Home > Samples > 72-ARh-311C

SAMPLE INFO : 72-ARh-311C

Sample ID:	72-ARh-311C
Station ID:	72-ARh-311C
Latitude:	62.0997
Longitude:	-143.47668
Datum:	NAD83
Date Sampled:	1971-01-01
Sample Type 1:	Lava

Text Description:
Dacitic andesite agglutinate flow. Extensive single flow unit as much as 60 m thick with well-formed columnar joints and black glassy base. Rocks are gray to black and are mineralogically similar to unit Qdac, but contain very abundant inclusions of both vitric and lithic volcanic debris, apparently derived from a cone now largely destroyed. Near base, flow contains glacial boulders as much as 1 m in diameter. Source cone appears to have been in the Nabesna A-6 quadrangle 2 to 3 km west of the dacite cinder cone (Qdac).

References:

Geologic map of the Nabesna A-5 quadrangle, 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
72-ARh-311C	62.0997	-143.47668	Richter, D. H.	1971-01-01		Jarvis		Nabesna A-5 quadrangle; Wrangell Lava; Wrangell Volcanic Field. lat long points derived from paper map. Sample from Jarvis.	Dacitic andesite agglutinate flow. Extensive single flow unit as much as 60 m thick with well-formed columnar joints and black glassy base. Rocks are gray to black and are mineralogically similar to unit Qdac, but contain very abundant inclusions of both vitric and lithic volcanic debris, apparently derived from a cone now largely destroyed. Near base, flow contains glacial boulders as much as 1 m in diameter. Source cone appears to have been in the Nabesna A-6 quadrangle 2 to 3 km west of the dacite cinder cone (Qdac).	72-ARh-311C	Lava			Whole-rock	59.6	1.5	16.2	6.8	0.12	2.7	5.7	4.3	2.1	0.44	100.42	4537	RAPIDA	2.7	4.4	H2O=0.56	RAPIDA

SAMPLE LOCATION

Contact AVO Privacy Accessibility Information Quality FOIA

URL: www.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.