Geology, Geochemistry and U-Pb SHRIMP Age of the Tacloban Ophiolite Complex, Leyte Island (Central Philippines): Implications for the Existence and Extent of the Proto-Philippine Sea Plate
2005; Wiley; Volume: 55; Issue: 3 Linguagem: Inglês
10.1111/j.1751-3928.2005.tb00242.x
ISSN1751-3928
AutoresLeilanie Osano Suerte, Graciano P. Yumul, Rodolfo A. Tamayo, Carla B. Dimalanta, Mei‐Fu Zhou, René C. Maury, Mireille Polvé, Cesar L. Balce,
Tópico(s)earthquake and tectonic studies
ResumoResource GeologyVolume 55, Issue 3 p. 207-216 Free Access Geology, Geochemistry and U-Pb SHRIMP Age of the Tacloban Ophiolite Complex, Leyte Island (Central Philippines): Implications for the Existence and Extent of the Proto-Philippine Sea Plate Leilanie O. Suerte, Leilanie O. Suerte Mines and Geosciences Bureau Region - 6, Department of Environment and Natural Resources, Iloilo City, Philippines Department of Earth Resources Engineering, Kyushu University, 6–10–1, Hakozaki, Higashi-ku, Fukuoka, 812–8581 Japan [e-mail: [email protected], [email protected]]Search for more papers by this authorGraciano P. Yumul Jr, Graciano P. Yumul Jr Philippine Council for Industry Energy Research and Development, Department of Science and Technology, Bicutan, Taguig, PhilippinesSearch for more papers by this authorRodolfo A. Tamayo Jr, Rodolfo A. Tamayo Jr National Institute of Geological Sciences, college of Sceince, University of the Philippines, 1101 Diliman, Quezon City, PhilippinesSearch for more papers by this authorCarla B. Dimalanta, Carla B. Dimalanta National Institute of Geological Sciences, college of Sceince, University of the Philippines, 1101 Diliman, Quezon City, PhilippinesSearch for more papers by this authorMei-Fu Zhou, Mei-Fu Zhou Department of Earth Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, People's Republic of ChinaSearch for more papers by this authorRené C. Maury, René C. Maury Département des Sciences de la Terre, Université de Bretagne Occidentale, 6 av. he Gorgeu, B.P. 809, F-29285 Brest, FranceSearch for more papers by this authorMireille Polvé, Mireille Polvé UMR 6538, Université Paul Sabatier, 38, rue des 36 Ponts, 31400 Toulouse, FranceSearch for more papers by this authorCesar L. Balce, Cesar L. Balce Mines and Geosciences Bureau Region - 8, Department of Environment and Natural Resources, Tacloban City, Leyte, PhilippinesSearch for more papers by this author Leilanie O. Suerte, Leilanie O. Suerte Mines and Geosciences Bureau Region - 6, Department of Environment and Natural Resources, Iloilo City, Philippines Department of Earth Resources Engineering, Kyushu University, 6–10–1, Hakozaki, Higashi-ku, Fukuoka, 812–8581 Japan [e-mail: [email protected], [email protected]]Search for more papers by this authorGraciano P. Yumul Jr, Graciano P. Yumul Jr Philippine Council for Industry Energy Research and Development, Department of Science and Technology, Bicutan, Taguig, PhilippinesSearch for more papers by this authorRodolfo A. Tamayo Jr, Rodolfo A. Tamayo Jr National Institute of Geological Sciences, college of Sceince, University of the Philippines, 1101 Diliman, Quezon City, PhilippinesSearch for more papers by this authorCarla B. Dimalanta, Carla B. Dimalanta National Institute of Geological Sciences, college of Sceince, University of the Philippines, 1101 Diliman, Quezon City, PhilippinesSearch for more papers by this authorMei-Fu Zhou, Mei-Fu Zhou Department of Earth Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, People's Republic of ChinaSearch for more papers by this authorRené C. Maury, René C. Maury Département des Sciences de la Terre, Université de Bretagne Occidentale, 6 av. he Gorgeu, B.P. 809, F-29285 Brest, FranceSearch for more papers by this authorMireille Polvé, Mireille Polvé UMR 6538, Université Paul Sabatier, 38, rue des 36 Ponts, 31400 Toulouse, FranceSearch for more papers by this authorCesar L. Balce, Cesar L. Balce Mines and Geosciences Bureau Region - 8, Department of Environment and Natural Resources, Tacloban City, Leyte, PhilippinesSearch for more papers by this author First published: 05 November 2008 https://doi.org/10.1111/j.1751-3928.2005.tb00242.xCitations: 21 AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Abstract. The oceanic basement of the Central Philippines is exposed in ophiolitic massifs the age and origin of which remain debated. The Tacloban Ophiolite Complex (TOC) outcrops as a NW-SE trending massif in the northeastern portion of Leyte Island, Central Philippines. It is unconformably overlain by sedimentary sequences dated to Late Miocene-Pliocene and Pleistocene volcaniclastic deposits on its eastern and western flanks, respectively. Field, petrographic and trace element data suggest a subduction-related origin for this ophiolite. Sensitive High Resolution Ion Microprobe (SHRIMP) U-Pb dating of zircons from a gabbro yielded Early Cretaceous magmatic age for the TOC, which is very much older than a previously reported whole rock K-Ar derived Eocene age. The Early Cretaceous age of the TOC limits its possible progenitor to the proto-Philippine Sea Plate. Correlation with other Cretaceous ophiolites in Central Philippines reveals the possible extent of the proto-Philippine Sea Plate remnants now exposed onland. References Ali, J. R., Hall, R. and Baker, S. J. 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