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Article: Early cretaceous (pre-Albian) radiolarians from blocks in Ayer Complex melange, eastern Sabah, Malaysia, with comments on their regional tectonic significance and the origins of enveloping melanges

TitleEarly cretaceous (pre-Albian) radiolarians from blocks in Ayer Complex melange, eastern Sabah, Malaysia, with comments on their regional tectonic significance and the origins of enveloping melanges
Authors
Issue Date1994
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaes
Citation
Journal Of Southeast Asian Earth Sciences, 1994, v. 9 n. 3, p. 255-262 How to Cite?
AbstractRadiolarians provide age constraints for chert blocks occurring in a Miocene mudstone matrix melange located between Lahad Datu and the Segama River in eastern Sabah. Chert samples have yielded a moderately well-preserved radiolarian fauna of Early Cretaceous (?pre-Albian) age. This age is notably older than basement oceanic rocks in the nearby Sulu and Celebes seas. Tectonic reconstructions indicate that the Chert-Spilite Formation of eastern Sabah, from which the blocks were most probably derived, may represent fragments of early Pacific ocean seafloor. These blocks were incorporated into mud-matrix melange which developed during Early Miocene NW-directed collision and overthrusting of the Sulu volcanic arc onto thinned continental crust rifted from South China. Diapiric ascent of muds overpressured during this collision occurred in response to extensional relaxation and rifting in the Sulu Sea. © 1994.
Persistent Identifierhttp://hdl.handle.net/10722/72755
ISSN
1998 Impact Factor: 0.303

 

DC FieldValueLanguage
dc.contributor.authorAitchison, JCen_HK
dc.date.accessioned2010-09-06T06:44:48Z-
dc.date.available2010-09-06T06:44:48Z-
dc.date.issued1994en_HK
dc.identifier.citationJournal Of Southeast Asian Earth Sciences, 1994, v. 9 n. 3, p. 255-262en_HK
dc.identifier.issn0743-9547en_HK
dc.identifier.urihttp://hdl.handle.net/10722/72755-
dc.description.abstractRadiolarians provide age constraints for chert blocks occurring in a Miocene mudstone matrix melange located between Lahad Datu and the Segama River in eastern Sabah. Chert samples have yielded a moderately well-preserved radiolarian fauna of Early Cretaceous (?pre-Albian) age. This age is notably older than basement oceanic rocks in the nearby Sulu and Celebes seas. Tectonic reconstructions indicate that the Chert-Spilite Formation of eastern Sabah, from which the blocks were most probably derived, may represent fragments of early Pacific ocean seafloor. These blocks were incorporated into mud-matrix melange which developed during Early Miocene NW-directed collision and overthrusting of the Sulu volcanic arc onto thinned continental crust rifted from South China. Diapiric ascent of muds overpressured during this collision occurred in response to extensional relaxation and rifting in the Sulu Sea. © 1994.en_HK
dc.languageengen_HK
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaesen_HK
dc.relation.ispartofJournal of Southeast Asian Earth Sciencesen_HK
dc.titleEarly cretaceous (pre-Albian) radiolarians from blocks in Ayer Complex melange, eastern Sabah, Malaysia, with comments on their regional tectonic significance and the origins of enveloping melangesen_HK
dc.typeArticleen_HK
dc.identifier.emailAitchison, JC: jona@hku.hken_HK
dc.identifier.authorityAitchison, JC=rp00658en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0028315305en_HK
dc.identifier.hkuros879en_HK
dc.identifier.volume9en_HK
dc.identifier.issue3en_HK
dc.identifier.spage255en_HK
dc.identifier.epage262en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridAitchison, JC=7102533858en_HK

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