State of Alaska Alaska | Natural Resources DNR | Geological & Geophysical Surveys DGGS | Geochemistry Geochem

Sample Detail

Sample Number 01MBW477A
Project Salcha River-Pogo

Sample Documentation

Analyses [Download All]

Reference Number A0127389
Reference Date 2001-11-09
Citation RDF 2002-3
Laboratory ALS Chemex
Description 72 rock samples were crushed so that at least 70 percent of the material passed through a -10 (2 mm) mesh screen. Representative aliquots of 200 grams and 30 grams each were taken using a stainless steel riffle splitter. These samples were then pulverized in a chrome steel ring mill so that 85 percent of the sample passed through a -200 (75 micron) mesh screen. 68 samples were analyzed for gold on a 30-gram representative sample split using Atomic Absorption Spectroscopy after Fire Assay Fusion. 72 samples were analyzed for trace elements using Inductively Coupled Plasma - Atomic Emission Spectroscopy after HCl:HNO3 (3:1) acid digestion. 4 samples were analyzed for gold, platinum and palladium on a 30-gram representative sample split using Inductively Coupled Plasma - Mass Spectroscopy after Fire Assay Fusion.
Sample Type rock