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Conference Paper: Reconstructing the Mesozoic-early Cenozoic evolution of northern Philippines: Clues from palaeomagnetic studies on the ophiolitic basement of the Central Cordillera

TitleReconstructing the Mesozoic-early Cenozoic evolution of northern Philippines: Clues from palaeomagnetic studies on the ophiolitic basement of the Central Cordillera
Authors
KeywordsAsia
Paleomagnetism Applied To Tectonics
Issue Date2009
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/GJI
Citation
Geophysical Journal International, 2009, v. 178 n. 3, p. 1317-1326 How to Cite?
AbstractThe first reliable palaeomagnetic data from the Cretaceous to Eocene ophiolitic basement rocks in the Philippines are presented. A total of 12 drill core sites from five localities in the Central Cordillera in northern Luzon, Philippines were sampled. Eight drill core sites were from pillow basalts, and four were from diabase feeder dykes. Combining the characteristic remanent magnetization direction from these sites gives a mean in situ direction of Dec = 162.2°, Inc = -21.4° (α95 = 17.0°, k = 21.1) and a tilt-corrected direction of Dec = 159.3°, Inc = -12.5°, α95 = 6.0°, k = 162.5. Along with other lines of palaeomagnetic evidence, this clustering suggests that the magnetization is primary and that the ophiolitic basement rocks of the Central Cordillera formed at subequatorial latitudes (6.3°N ± 3.1°). This information further suggests that the basement rocks of northern Luzon were formed close to where the island was during the early Cenozoic. These rocks could represent relicts of the proto-Philippine Sea Plate. © 2009 The Authors Journal compilation © 2009 RAS.
Persistent Identifierhttp://hdl.handle.net/10722/152516
ISSN
2015 Impact Factor: 2.484
2015 SCImago Journal Rankings: 1.839
ISI Accession Number ID
Funding AgencyGrant Number
University of Hong Kong
The Mines and Geosciences Bureau, Philippines
Funding Information:

This work and the postgraduate studentship of KLQ were supported by the University of Hong Kong. The Mines and Geosciences Bureau, Philippines, provided the logistical support. Reviews by E. Appel, M. Fuller and an anonymous reviewer helped improve the manuscript. Constructive insights were offered by D. Faustino-Eslava and the members of the Rushurgent Working Group, National Institute of Geological Sciences.

References

 

DC FieldValueLanguage
dc.contributor.authorQueaño, KLen_US
dc.contributor.authorAli, JRen_US
dc.contributor.authorPubellier, Men_US
dc.contributor.authorYumul Jr, GPen_US
dc.contributor.authorDimalanta, CBen_US
dc.date.accessioned2012-06-26T06:40:41Z-
dc.date.available2012-06-26T06:40:41Z-
dc.date.issued2009en_US
dc.identifier.citationGeophysical Journal International, 2009, v. 178 n. 3, p. 1317-1326en_US
dc.identifier.issn0956-540Xen_US
dc.identifier.urihttp://hdl.handle.net/10722/152516-
dc.description.abstractThe first reliable palaeomagnetic data from the Cretaceous to Eocene ophiolitic basement rocks in the Philippines are presented. A total of 12 drill core sites from five localities in the Central Cordillera in northern Luzon, Philippines were sampled. Eight drill core sites were from pillow basalts, and four were from diabase feeder dykes. Combining the characteristic remanent magnetization direction from these sites gives a mean in situ direction of Dec = 162.2°, Inc = -21.4° (α95 = 17.0°, k = 21.1) and a tilt-corrected direction of Dec = 159.3°, Inc = -12.5°, α95 = 6.0°, k = 162.5. Along with other lines of palaeomagnetic evidence, this clustering suggests that the magnetization is primary and that the ophiolitic basement rocks of the Central Cordillera formed at subequatorial latitudes (6.3°N ± 3.1°). This information further suggests that the basement rocks of northern Luzon were formed close to where the island was during the early Cenozoic. These rocks could represent relicts of the proto-Philippine Sea Plate. © 2009 The Authors Journal compilation © 2009 RAS.en_US
dc.languageengen_US
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/GJIen_US
dc.relation.ispartofGeophysical Journal Internationalen_US
dc.subjectAsiaen_US
dc.subjectPaleomagnetism Applied To Tectonicsen_US
dc.titleReconstructing the Mesozoic-early Cenozoic evolution of northern Philippines: Clues from palaeomagnetic studies on the ophiolitic basement of the Central Cordilleraen_US
dc.typeConference_Paperen_US
dc.identifier.emailAli, JR:jrali@hku.hken_US
dc.identifier.authorityAli, JR=rp00659en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1111/j.1365-246X.2009.04221.xen_US
dc.identifier.scopuseid_2-s2.0-69149100386en_US
dc.identifier.hkuros165967-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-69149100386&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume178en_US
dc.identifier.issue3en_US
dc.identifier.spage1317en_US
dc.identifier.epage1326en_US
dc.identifier.isiWOS:000268984700012-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridQueaño, KL=8365921900en_US
dc.identifier.scopusauthoridAli, JR=7102266465en_US
dc.identifier.scopusauthoridPubellier, M=7003955053en_US
dc.identifier.scopusauthoridYumul Jr, GP=7003858862en_US
dc.identifier.scopusauthoridDimalanta, CB=6602158221en_US
dc.identifier.citeulike5490553-

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