Petrology of Sulu basement rocks and Cagayan Ridge volcanics, supplement to: Spadea, Piera; Beccaluva, L; Civetta, L; Coltorti, Massimo; Dostal, J; Sajona, F G; Serri, G; Vaccaro, C; Zeda, O (1991): Petrology of basic igneous rocks from the floor of the 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, 251-269

Piera Spadea, L Beccaluva, L Civetta, Massimo Coltorti, J Dostal, F G Sajona, G Serri, C Vaccaro & O Zeda
Major and trace elements, mineral chemistry, and Sr-Nd isotope ratios are reported for representative igneous rocks drilled from the Sulu Basin basement (Site 768) and Cagayan Ridge (Sites 769, 771) during Ocean Drilling Program Leg 124.The Sulu Basin basement rocks, cored for about 220 m beneath late early Miocene pelagic sediments, consist, downhole, of pillow basalts (Unit 1), dolerite (Unit 2), and two-pyroxene microgabbro (Unit 3), followed by pillowed and massive basalts (Units 4, 5,...
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