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From subduction to collision in the northern Tibetan plateau : evidence from the early Silurian clastic rocks, northwestern China
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dc.contributor.author | Yang, Jianghai | |
dc.contributor.author | Du, Yuansheng | |
dc.contributor.author | Cawood, Peter A. | |
dc.contributor.author | Xu, Yajun | |
dc.date.accessioned | 2013-05-31T09:31:02Z | |
dc.date.available | 2013-05-31T09:31:02Z | |
dc.date.issued | 2012-01 | |
dc.identifier.citation | Yang , 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 . https://doi.org/10.1086/662717 | en |
dc.identifier.issn | 0022-1376 | |
dc.identifier.other | PURE: 41431807 | |
dc.identifier.other | PURE UUID: d1fede3f-2471-49f7-8a3a-a4e81435386d | |
dc.identifier.other | WOS: 000299270100004 | |
dc.identifier.other | Scopus: 84862970011 | |
dc.identifier.uri | https://hdl.handle.net/10023/3585 | |
dc.description.abstract | The 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.format.extent | 19 | |
dc.language.iso | eng | |
dc.relation.ispartof | The Journal of Geology | en |
dc.rights | © 2012 The University of Chicago Press. Deposited by permission of the publisher. | en |
dc.subject | QE Geology | en |
dc.subject.lcc | QE | en |
dc.title | From subduction to collision in the northern Tibetan plateau : evidence from the early Silurian clastic rocks, northwestern China | en |
dc.type | Journal article | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. Earth and Environmental Sciences | en |
dc.contributor.institution | University of St Andrews. Scottish Oceans Institute | en |
dc.contributor.institution | University of St Andrews. St Andrews Isotope Geochemistry | en |
dc.identifier.doi | https://doi.org/10.1086/662717 | |
dc.description.status | Peer reviewed | en |
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