Browse TRAIL Inventories

Investigation of low-grade and complex ores in Colorado

Metallurgical possibilities of the descloizite ores at Goodsprings, Nevada

Distillation-amalgamation methods for the technical determination of mercury in ores

Progress reports -metallurgical division.

Trends in exploration of mineral deposits

A method for the spectrochemical determination of germanium, tin, and lead in ore samples

Method for the spectrochemical determination of beryllium, cadmium, zinc, and indium in ore samples

A method for spectrochemical determination of silver in ore samples

A method for the spectrochemical determination of thallium in ores, concentrates, dusts, and chemicals

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

Transmission characteristics in the visible spectral region of the quinalizarin and beryllium-quinalizarin complex in N/4 sodium hydroxide solution

Spectrophotometric studies of the isomers of chromic sulfate

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

Statistical analysis of sample data for estimating ore

An experimental mine-sampling project designed for statistical analysis

Computing ore reserves by the triangular method using a medium- size digital computer

Accuracy in estimating metal content and tonnage of an ore body from diamond-drill-hole data

Using unequal sample interval lengths and weighted averages in estimating grade of ore for bedded deposits

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

A computer method of fitting surfaces to assay and other data in three dimensions by quadratic-regression analysis

Investigation of correlation between assay values and unequal sample interval lengths

Assigning an area of influence for an assay obtained in mine sampling

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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