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<OAI-PMH schemaLocation=http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd> <responseDate>2018-01-15T18:42:52Z</responseDate> <request identifier=oai:HAL:insu-00599546v1 verb=GetRecord metadataPrefix=oai_dc>http://api.archives-ouvertes.fr/oai/hal/</request> <GetRecord> <record> <header> <identifier>oai:HAL:insu-00599546v1</identifier> <datestamp>2018-01-11</datestamp> <setSpec>type:ART</setSpec> <setSpec>subject:sdu</setSpec> <setSpec>subject:sde</setSpec> <setSpec>collection:SDE</setSpec> <setSpec>collection:INSU</setSpec> <setSpec>collection:CNRS</setSpec> <setSpec>collection:UNIV-ORLEANS</setSpec> <setSpec>collection:UNIV-TOURS</setSpec> <setSpec>collection:ISTO</setSpec> <setSpec>collection:GM</setSpec> <setSpec>collection:OSUC</setSpec> <setSpec>collection:GIP-BE</setSpec> <setSpec>collection:AGROPOLIS</setSpec> <setSpec>collection:B3ESTE</setSpec> <setSpec>collection:UNIV-AG</setSpec> <setSpec>collection:UNIV-MONTPELLIER</setSpec> </header> <metadata><dc> <publisher>HAL CCSD</publisher> <title lang=en>Palaeomagnetic constraints from granodioritic plutons (Jiaodong Peninsula): New insights on Late Mesozoic continental extension in eastern Asia.</title> <creator>Charles, Nicolas</creator> <creator>Chen, Yan</creator> <creator>Augier, Romain</creator> <creator>Gumiaux, Charles</creator> <creator>Lin, Wei</creator> <creator>Faure, Michel</creator> <creator>Monié, Patrick</creator> <creator>Choulet, Flavien</creator> <creator>Wu, Fuyuan</creator> <creator>Zhu, Rixiang</creator> <creator>Wang, Qingchen</creator> <contributor>Institut des Sciences de la Terre d'Orléans (ISTO) ; Institut national des sciences de l'Univers (INSU - CNRS) - Université d'Orléans (UO) - Université François Rabelais - Tours - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>State Key Laboratory of Lithospheric Evolution ; Institute of Geology and Geophysics, Chinese Academy of Sciences</contributor> <contributor>Géosciences Montpellier ; Université des Antilles et de la Guyane (UAG) - Institut national des sciences de l'Univers (INSU - CNRS) - Université de Montpellier (UM) - Centre National de la Recherche Scientifique (CNRS)</contributor> <contributor>Failles-Fluides- Flux" project supported by the INSU-CNRS Chinese projects KZCX2-YW-Q05-05-03, NSFC (90714007 and 40730315)</contributor> <description>International audience</description> <source>ISSN: 0031-9201</source> <source>EISSN: 0031-9201</source> <source>Physics of the Earth and Planetary Interiors</source> <publisher>Elsevier</publisher> <identifier>insu-00599546</identifier> <identifier>https://hal-insu.archives-ouvertes.fr/insu-00599546</identifier> <identifier>https://hal-insu.archives-ouvertes.fr/insu-00599546/document</identifier> <identifier>https://hal-insu.archives-ouvertes.fr/insu-00599546/file/Charles_et_al_PEPI2011.pdf</identifier> <source>https://hal-insu.archives-ouvertes.fr/insu-00599546</source> <source>Physics of the Earth and Planetary Interiors, Elsevier, 2011, 187 (3-4), pp.276-291. 〈10.1016/j.pepi.2011.05.006〉</source> <identifier>DOI : 10.1016/j.pepi.2011.05.006</identifier> <relation>info:eu-repo/semantics/altIdentifier/doi/10.1016/j.pepi.2011.05.006</relation> <language>en</language> <subject lang=en>Shandong Peninsula</subject> <subject lang=en>Eastern China</subject> <subject lang=en>Late Mesozoic extension</subject> <subject lang=en>palaeomagnetism</subject> <subject lang=en>granitic pluton</subject> <subject lang=en>magnetic remanent age</subject> <subject lang=en>Cretaceous</subject> <subject lang=en>Shandong Peninsula.</subject> <subject>[SDU.STU.TE] Sciences of the Universe [physics]/Earth Sciences/Tectonics</subject> <subject>[SDE.MCG] Environmental Sciences/Global Changes</subject> <type>info:eu-repo/semantics/article</type> <type>Journal articles</type> <description lang=en>Mechanism and kinematics of the Late Mesozoic continental extension event of eastern Asia are still debated. In order to better constrain its evolution, two granodioritic plutons of the Jiaodong Peninsula have been chosen as targets for a time-constrained palaeomagnetic study. Indeed, plutons are devoid of visible deformation, did not experience rotation along horizontal axis and are precisely dated by U/Pb and 40Ar/39Ar methods. Multidomain (MD) magnetite has been identified as the principal magnetic remanent carrier. The interpolation of existing and new U/Pb and 40Ar/39Ar ages revealed that characteristic remanent magnetisation was acquired in a narrow range of 116 ± 2 Ma. Twenty out of 27 sites present stable magnetic directions calculated from high-temperature or high-coercive components. The observations of the solo normal magnetic polarity for this palaeomagnetic collection and of the magnetic remanent age consistent with the Cretaceous Normal Superchron (CNS) argue that the characteristic magnetic remanence may be considered as primary. Detailed field observations of the intrusive relationship between the plutons and country rocks and Anisotropy of Magnetic Susceptibility (AMS) study reveal the absence of the subsequent deformation of plutons, or rigid rotation of plutons along a horizontal axis. Two palaeomagnetic poles have been therefore calculated from these plutons. Among 12 out 15 Cretaceous palaeomagnetic poles, including the two new poles provided by this study, from the Jiaodong Peninsula and on both sides of Tan-Lu and Muping-Jimo faults are statistically consistent. As a result, the Jiaodong Peninsula behaved as a rigid block as internal deformation appears negligible. The remaining three derived poles are probably due to the secular variation or/and the vicinity of fault zones near of the palaeomagnetic sampling site. Thus, they can not be applied to the peninsula-scaled tectonics. Comparison of these time52 constrained Cretaceous palaeomagnetic results of the Jiaodong Peninsula with those of North China Block (NCB) indicate that the Jiaodong Peninsula was rigidly attached to NCB since, 3 at least, the Cretaceous as residual difference is clearly insignificant with respect to the error brackets. These new palaeomagnetic results confirm that the relative clockwise (CW) rotation of Eastern Liaoning-Korea Block (ELKB) with respect to NCB does not affect the Jiaodong Peninsula as a rigid block, nevertheless, some tectonic structures have been reactivated since Cenozoic and local rotations could be produced. This palaeomagnetic study reveals that the Late Mesozoic extension in Eastern Asia is heterogeneously expressed in time and space. The complete understanding of the mechanism(s) of this extensional event needs further multidisciplinary investigations.</description> <date>2011</date> </dc> </metadata> </record> </GetRecord> </OAI-PMH>