期刊
GEOLOGICAL SOCIETY OF AMERICA BULLETIN
卷 124, 期 7-8, 页码 1293-1309出版社
GEOLOGICAL SOC AMER, INC
DOI: 10.1130/B30640.1
关键词
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资金
- International Geological Correlation Programme (IGCP) [574, 597]
- ODRE II from the Spanish Ministry of Science and Innovation [CGL2009-1367]
- Ayuda para la Contratacion del Personal Investigador grant from the Junta de Castilla and Leon
- Suvencion Obtencion Mencion Europea grant from the Spanish Ministry of Education
- Spanish Ministry of Education
- Deutsche Forschungsgemeinschaft (DFG) [Zu 73/13]
We report on a series of analogue modeling experiments that study the oroclinal buckling process as a thick-skinned process involving the entire lithosphere. The results obtained in the experiments suggest that, during oroclinal buckling, extension in the outer arc and significant shortening in the inner arc are produced by tangential longitudinal strain as the main mechanism of deformation. The models also reveal that the mantle lithosphere thickens in different noncylindrical ways depending on the initial lithospheric mantle thickness: from almost recumbent to folding with subvertical axial planes for the thinnest to the thickest mantle lithosphere, respectively. The results provide useful insights into thick-skinned orocline buckling as it is interpreted to have happened in the Iberian-Armorican Arc.
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