Browse TRAIL Inventories

Analyses of rocks and minerals from the laboratory of the United States Geological Survey, 1914-36,

Trends in exploration of mineral deposits

Laboratories that make fire assays, analyses, and tests on ores, minerals, metals and other inorganic substances

A nomogram for obtaining percent composition by weight from mineral-grain counts

Laboratories that make fire assays, analyses, and tests of ores, minerals, metals, and other inorganic substances

Using probability models as a basis for making decisions during mineral deposit exploration

Linear discriminant analysis of multivariate assay and other mineral data

A multistage probability model of sample reduction in the mineral industries


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