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Geochemical analysis of rock sample 71AFr364

Dates

Dataset Reference Date
2020-12-22
Info Date
1971

Summary

35 samples were analyzed for: SiO2 and Al2O3 using Spectrophotographic methods after NaOH fusion; Fe2O3, MnO, P2O5 and TiO2 using Spectrophotometrical methods after HF-H2SO4-HNO3 acid digestion; CaO using titrimetric methods after HF-H2SO4-HNO3 acid digestion; K2O and Na2O using Atomic Emission Spectroscopy after HF-H2SO4-HNO3 acid digestion; MgO was analyzed by one of two methods outlined in USGS Bulletin 1144A by Shapiro and Brannock (1962). FeO was analyzed using titrimetric methods after HF-H2SO4 acid digestion. H2O+ was acquired using heating methods. CO2 values were acquired by its volume upon evolution with acid. Some CO2 results may be below the lower limit for that method.

Attached Files

Material Request Instructions

For additional information about the sample, see: https://dggs.alaska.gov/sample/id/29770

Map

Communities

  • ReSciColl Archive

Tags

Provenance

Data source
File Processing
File Process
Type
NGGDPP
Reference Item
Collection of geochemical data from Alaska (DGGS)
Reference File
v_nggdpp_geochem_sample_metadata.csv

Additional Information

Identifiers

Type Scheme Key
title Parent-4f4e49cfe4b07f02db5da760 Geochemical analysis of rock sample 71AFr364

NGGDPP Item Extension

alternateGeometryThe coordinates are represented in North American Datum of 1927 (NAD27). Location was derived from the following method(s): Geochemical analysis files

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