Nepheline syenite

A plutonic rock defined in the QAPF diagram as having F/(F+A+P) between 10 an 60%, and P/(P+A) < 50%; composed essentially of alkali feldspar and nepheline...

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Geochemical analyses of bauxite and associated rocks from the Arkansas bauxite region, central Arkansas

Major and trace element analytical results of samples of bauxite (aluminum ore) and associated rocks.

Reconnaissance study of the major and trace element content of bauxite deposits in the Arkansas bauxite region, Saline and Pulaski Counties, central Arkansas

Geochemical analysis and characteristics of bauxite deposits in this area.