Show simple item record

Files in this item


Item metadata

dc.contributor.authorYang, Jianghai
dc.contributor.authorDu, Yuansheng
dc.contributor.authorCawood, Peter A.
dc.contributor.authorXu, Yajun
dc.identifier.citationYang , J , Du , Y , Cawood , P A & Xu , Y 2012 , ' From subduction to collision in the northern Tibetan plateau : evidence from the early Silurian clastic rocks, northwestern China ' , The Journal of Geology , vol. 120 , no. 1 , pp. 49-67 .
dc.identifier.otherPURE: 41431807
dc.identifier.otherPURE UUID: d1fede3f-2471-49f7-8a3a-a4e81435386d
dc.identifier.otherWOS: 000299270100004
dc.identifier.otherScopus: 84862970011
dc.description.abstractThe Qilian Orogen records early Paleozoic collisional suturing of the Qaidam Block and the Central Qilian Block to the North China Craton. The composition and U-Pb age of detrital zircons and the composition of Cr-spinels from the Early Silurian Lujiaogou and Angzanggou formations in the northern part of orogen indicate derivation from evolving oceanic and continental source terranes. Heavy-mineral chemistry indicates the incorporation of suprasubduction zone-type ophiolitic detritus in addition to continent-derived material. Integrating these chemical and age data with regional data on the duration of subduction-related magmatic activity, syn- and postcollisional granitic rocks, and high-pressure metamorphic rocks constrains the transformation from oceanic subduction to continental collision to 450-440 Ma. The collision resulted in a flood of detritus into the northern part of the orogen from the Central Qilian Block, which masked input from the intervening magmatic arc, implying rapid exposure of the block.
dc.relation.ispartofThe Journal of Geologyen
dc.rights© 2012 The University of Chicago Press. Deposited by permission of the publisher.en
dc.subjectQE Geologyen
dc.titleFrom subduction to collision in the northern Tibetan plateau : evidence from the early Silurian clastic rocks, northwestern Chinaen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. Earth and Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews. Scottish Oceans Instituteen
dc.contributor.institutionUniversity of St Andrews. St Andrews Isotope Geochemistryen
dc.description.statusPeer revieweden

This item appears in the following Collection(s)

Show simple item record