Geochemistry and petrology of the volcanic rocks from the Sulu Sea, supplement to: Smith, Terence E; Huang, C H; Sajona, F G (1991): Geochemistry and petrogenesis of the volcanic rocks from Holes 768 and 769, Sulu Sea. In: Silver, EA; Rangin, C; von Breymann, MT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 124, 297-310

Terence E Smith, C H Huang & F G Sajona
Major-, trace-, and rare-earth element analyses of the basaltic rocks recovered from the basement of the Sulu Sea and of lithic clasts from the pyroclastic unit representing the acoustic basement of the Cagayan Ridge, are presented. The major and trace elements were measured by X-ray fluorescence techniques, and rare-earth elements by instrumental neutron activation analysis. These data show that the Sulu Sea basalts are back-arc tholeiites and the lithic clasts are basalts, basaltic andesites, and...
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