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Article: Geology of southeast Bohol, central Philippines: Accretion and sedimentation in a marginal basin

TitleGeology of southeast Bohol, central Philippines: Accretion and sedimentation in a marginal basin
Authors
KeywordsAccretion
Bohol
Marginal basin
Ophiolite
Philippines
Stratigraphy
Issue Date2003
PublisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/08120099.asp
Citation
Australian Journal Of Earth Sciences, 2003, v. 50 n. 4, p. 571-583 How to Cite?
AbstractRecent field mapping has refined our understanding of the stratigraphy and geology of southeastern Bohol, which is composed of a Cretaceous basement complex subdivided into three distinct formations. The basal unit, a metamorphic complex named the Alicia Schist, is overthrust by the Cansiwang mélange, which is, in turn, structurally overlain by the Southeast Bohol Ophiolite Complex. The entire basement complex is overlain unconformably by a ∼2000 m thick sequence of Lower Miocene to Pleistocene carbonate and elastic sedimentary rocks and igneous units. Newly identified lithostratigraphic units in the area include the Cansiwang mélange, a tectonic mélange interpreted as an accretionary prism, and the Lumbog Volcaniclastic Member of the Lower Miocene Carmen Formation. The Cansiwang mélange is sandwiched between the ophiolite and the metamorphic complex, suggesting that the Alicia Schist was not formed in response to emplacement of the Southeast Bohol Ophiolite Complex. The accretionary prism beneath the ophiolite complex and the presence of boninites suggest that the Southeast Bohol Ophiolite Complex was emplaced in a forearc setting. The Southeast Bohol Ophiolite Complex formed during the Early Cretaceous in a supra-subduction zone environment related to a southeast-facing arc (using present-day geographical references). The accretion of this ophiolite complex was followed by a period of erosion and then later by extensive clastic and carbonate rock deposition (Carmen Formation, Sierra Bullones Limestone and Maribojoc Limestone). The Lumbog Volcaniclastic Member and Jagna Andesite document intermittent Tertiary volcanism in southeastern Bohol.
Persistent Identifierhttp://hdl.handle.net/10722/72910
ISSN
2015 Impact Factor: 1.75
2015 SCImago Journal Rankings: 1.210
References

 

DC FieldValueLanguage
dc.contributor.authorFaustino, DVen_HK
dc.contributor.authorYumul Jr, GPen_HK
dc.contributor.authorDe Jesus, JVen_HK
dc.contributor.authorDimalanta, CBen_HK
dc.contributor.authorAitchison, JCen_HK
dc.contributor.authorZhou, MFen_HK
dc.contributor.authorTamayo Jr, RAen_HK
dc.contributor.authorDe Leon, MMen_HK
dc.date.accessioned2010-09-06T06:46:15Z-
dc.date.available2010-09-06T06:46:15Z-
dc.date.issued2003en_HK
dc.identifier.citationAustralian Journal Of Earth Sciences, 2003, v. 50 n. 4, p. 571-583en_HK
dc.identifier.issn0812-0099en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72910-
dc.description.abstractRecent field mapping has refined our understanding of the stratigraphy and geology of southeastern Bohol, which is composed of a Cretaceous basement complex subdivided into three distinct formations. The basal unit, a metamorphic complex named the Alicia Schist, is overthrust by the Cansiwang mélange, which is, in turn, structurally overlain by the Southeast Bohol Ophiolite Complex. The entire basement complex is overlain unconformably by a ∼2000 m thick sequence of Lower Miocene to Pleistocene carbonate and elastic sedimentary rocks and igneous units. Newly identified lithostratigraphic units in the area include the Cansiwang mélange, a tectonic mélange interpreted as an accretionary prism, and the Lumbog Volcaniclastic Member of the Lower Miocene Carmen Formation. The Cansiwang mélange is sandwiched between the ophiolite and the metamorphic complex, suggesting that the Alicia Schist was not formed in response to emplacement of the Southeast Bohol Ophiolite Complex. The accretionary prism beneath the ophiolite complex and the presence of boninites suggest that the Southeast Bohol Ophiolite Complex was emplaced in a forearc setting. The Southeast Bohol Ophiolite Complex formed during the Early Cretaceous in a supra-subduction zone environment related to a southeast-facing arc (using present-day geographical references). The accretion of this ophiolite complex was followed by a period of erosion and then later by extensive clastic and carbonate rock deposition (Carmen Formation, Sierra Bullones Limestone and Maribojoc Limestone). The Lumbog Volcaniclastic Member and Jagna Andesite document intermittent Tertiary volcanism in southeastern Bohol.en_HK
dc.languageengen_HK
dc.publisherTaylor & Francis Ltd. The Journal's web site is located at http://www.tandf.co.uk/journals/titles/08120099.aspen_HK
dc.relation.ispartofAustralian Journal of Earth Sciencesen_HK
dc.subjectAccretionen_HK
dc.subjectBoholen_HK
dc.subjectMarginal basinen_HK
dc.subjectOphioliteen_HK
dc.subjectPhilippinesen_HK
dc.subjectStratigraphyen_HK
dc.titleGeology of southeast Bohol, central Philippines: Accretion and sedimentation in a marginal basinen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0812-0099&volume=50&spage=571&epage=583&date=2003&atitle=Geology+of+southeast+Bohol,+central+Philippines:+accretion+and+sedimentation+in+a+marginal+basinen_HK
dc.identifier.emailAitchison, JC: jona@hku.hken_HK
dc.identifier.emailZhou, MF: mfzhou@hkucc.hku.hken_HK
dc.identifier.authorityAitchison, JC=rp00658en_HK
dc.identifier.authorityZhou, MF=rp00844en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1046/j.1440-0952.2003.01015.xen_HK
dc.identifier.scopuseid_2-s2.0-0242657367en_HK
dc.identifier.hkuros82613en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0242657367&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume50en_HK
dc.identifier.issue4en_HK
dc.identifier.spage571en_HK
dc.identifier.epage583en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridFaustino, DV=6508199541en_HK
dc.identifier.scopusauthoridYumul Jr, GP=7003858862en_HK
dc.identifier.scopusauthoridDe Jesus, JV=7004066968en_HK
dc.identifier.scopusauthoridDimalanta, CB=6602158221en_HK
dc.identifier.scopusauthoridAitchison, JC=7102533858en_HK
dc.identifier.scopusauthoridZhou, MF=7403506005en_HK
dc.identifier.scopusauthoridTamayo Jr, RA=6701447282en_HK
dc.identifier.scopusauthoridDe Leon, MM=8071921600en_HK

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