File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Geochemical constraints on the origin of the Hegenshan ophiolite, Inner Mongolia, China

TitleGeochemical constraints on the origin of the Hegenshan ophiolite, Inner Mongolia, China
Authors
Issue Date1999
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaes
Citation
Journal Of Asian Earth Sciences, 1999, v. 17 n. 4, p. 423-442 How to Cite?
AbstractThe Hegenshan ophiolite in Inner Mongolia is a remnant of oceanic lithosphere of probable Devonian age. The ophiolite consists of several blocks composed chiefly of serpentinized ultramafic rocks with lesser amounts of troctolite and gabbro, and sparse lavas and dikes. The ultramafic rocks consist chiefly of depleted harzburgite and minor dunite and are interpreted as mantle tectonites. In the Hegenshan block dunite is relatively abundant and is typically associated with podiform chromitite. Both the chromite ore and the residual chromites in this body are relatively aluminous with average Cr numbers of 44-54. A few small chromite bodies and some of the residual chromites have much higher Cr numbers (72-76). Several blocks have well-layered cumulate sequences of gabbro and troctolite. Sheeted dikes are absent but small mafic dikes are common in some of the ultramafic sections. Most of the mafic dikes have flat chondrite-normalized REE patterns and are strongly depleted in incompatible elements, similar to depleted tholeiites from immature island arcs. The basaltic lavas of the Hegenshan ophiolite have two distinctly different chemical signatures-one similar to the mafic dikes and one similar to ocean island basalts. The entire complex was probably formed within an island arc-marginal basin system that was later accreted to the southern margin of the Siberian Altaids.
Persistent Identifierhttp://hdl.handle.net/10722/151022
ISSN
2015 Impact Factor: 2.647
2015 SCImago Journal Rankings: 1.393
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorRobinson, PTen_US
dc.contributor.authorZhou, MFen_US
dc.contributor.authorHu, XFen_US
dc.contributor.authorReynolds, Pen_US
dc.contributor.authorBai, Wen_US
dc.contributor.authorYang, Jen_US
dc.date.accessioned2012-06-26T06:16:02Z-
dc.date.available2012-06-26T06:16:02Z-
dc.date.issued1999en_US
dc.identifier.citationJournal Of Asian Earth Sciences, 1999, v. 17 n. 4, p. 423-442en_US
dc.identifier.issn1367-9120en_US
dc.identifier.urihttp://hdl.handle.net/10722/151022-
dc.description.abstractThe Hegenshan ophiolite in Inner Mongolia is a remnant of oceanic lithosphere of probable Devonian age. The ophiolite consists of several blocks composed chiefly of serpentinized ultramafic rocks with lesser amounts of troctolite and gabbro, and sparse lavas and dikes. The ultramafic rocks consist chiefly of depleted harzburgite and minor dunite and are interpreted as mantle tectonites. In the Hegenshan block dunite is relatively abundant and is typically associated with podiform chromitite. Both the chromite ore and the residual chromites in this body are relatively aluminous with average Cr numbers of 44-54. A few small chromite bodies and some of the residual chromites have much higher Cr numbers (72-76). Several blocks have well-layered cumulate sequences of gabbro and troctolite. Sheeted dikes are absent but small mafic dikes are common in some of the ultramafic sections. Most of the mafic dikes have flat chondrite-normalized REE patterns and are strongly depleted in incompatible elements, similar to depleted tholeiites from immature island arcs. The basaltic lavas of the Hegenshan ophiolite have two distinctly different chemical signatures-one similar to the mafic dikes and one similar to ocean island basalts. The entire complex was probably formed within an island arc-marginal basin system that was later accreted to the southern margin of the Siberian Altaids.en_US
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaesen_US
dc.relation.ispartofJournal of Asian Earth Sciencesen_US
dc.titleGeochemical constraints on the origin of the Hegenshan ophiolite, Inner Mongolia, Chinaen_US
dc.typeArticleen_US
dc.identifier.emailZhou, MF: mfzhou@hkucc.hku.hken_US
dc.identifier.authorityZhou, MF=rp00844en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/S1367-9120(99)00016-4en_US
dc.identifier.scopuseid_2-s2.0-0033397872en_US
dc.identifier.hkuros46961-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033397872&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume17en_US
dc.identifier.issue4en_US
dc.identifier.spage423en_US
dc.identifier.epage442en_US
dc.identifier.isiWOS:000081722300001-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridRobinson, PT=7403720506en_US
dc.identifier.scopusauthoridZhou, MF=7403506005en_US
dc.identifier.scopusauthoridHu, XF=7404710867en_US
dc.identifier.scopusauthoridReynolds, P=7201378946en_US
dc.identifier.scopusauthoridWenji, B=48961486100en_US
dc.identifier.scopusauthoridYang, J=35335519900en_US

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats