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Abstract
3-3 Reynolds, S. J., and Keith, S. B., 1982, Geochemistry & mineral potential of peraluminous granitoids: Arizona Bureau of Geology and Mineral Technology Fieldnotes, v. 12, no. 4, p. 4-6
Abstract
3-3 Reynolds, S. J., and Keith, S. B., 1982, Geochemistry & mineral potential of peraluminous granitoids: Arizona Bureau of Geology and Mineral Technology Fieldnotes, v. 12, no. 4, p. 4-6
ABS
Peraluminous granitic rocks (granitoids) are characterized by relatively high contents of aluminum as compared to potassium, sodium, and calcium. These granites are distinctive because they contain aluminum-rich minerals such as muscovite and garnet, and appear to have been derived from the melting of crustal rocks. This paper presents a system for classifying peraluminous granites that has important implications for mineral exploration. For example, most peraluminous granites in Arizona are less favorable for certain types of mineral deposits (such as molybdenum, beryllium, tin, and uranium) than are similar granites of Europe and Thailand. These differences in mineral potential are probably due to regional variations in tectonic setting and composition of the crustal source rocks.
Key words
chemical composition. composition. distribution. genesis. geochemistry. granites. igneous rocks. mineral composition. occurrence. peraluminous granitoids. plutonic rocks.
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Abstract
3-3 Reynolds, S. J., and Keith, S. B., 1982, Geochemistry & mineral potential of peraluminous granitoids: Arizona Bureau of Geology and Mineral Technology Fieldnotes, v. 12, no. 4, p. 4-6
ABS
Peraluminous granitic rocks (granitoids) are characterized by relatively high contents of aluminum as compared to potassium, sodium, and calcium. These granites are distinctive because they contain aluminum-rich minerals such as muscovite and garnet, and appear to have been derived from the melting of crustal rocks. This paper presents a system for classifying peraluminous granites that has important implications for mineral exploration. For example, most peraluminous granites in Arizona are less favorable for certain types of mineral deposits (such as molybdenum, beryllium, tin, and uranium) than are similar granites of Europe and Thailand. These differences in mineral potential are probably due to regional variations in tectonic setting and composition of the crustal source rocks.
Key words
chemical composition. composition. distribution. genesis. geochemistry. granites. igneous rocks. mineral composition. occurrence. peraluminous granitoids. plutonic rocks.
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