eprintid: 1847 rev_number: 10 eprint_status: archive userid: 6 dir: disk0/00/00/18/47 datestamp: 2017-03-02 11:12:27 lastmod: 2017-03-02 11:12:27 status_changed: 2017-03-02 11:12:27 type: article metadata_visibility: show creators_name: Place, Joachim creators_name: Diraison, Marc creators_name: Naville, Charles creators_name: Géraud, Yves creators_name: Schaming, Marc creators_name: Dezayes, Chrystel corp_creators: IPGS-UMR 7516, CNRS, institut de physique du globe de Strasbourg, université de Strasbourg (EOST),France; GEIE « Exploitation minière de la chaleur », France. corp_creators: IPGS-UMR 7516, CNRS, institut de physique du globe de Strasbourg, université de Strasbourg (EOST),France corp_creators: IFP, division géologie–géochimie, France corp_creators: IPGS-UMR 7516, CNRS, institut de physique du globe de Strasbourg, université de Strasbourg (EOST),France corp_creators: IPGS-UMR 7516, CNRS, institut de physique du globe de Strasbourg, université de Strasbourg (EOST),France corp_creators: BRGM, département géothermie, France title: Decoupling of deformation in the Upper Rhine Graben sediments. Seismic reflection and diffraction on 3-component Vertical Seismic Profiling (Soultz-sous-Forêts area) subjects: O subjects: RF1 subjects: SG divisions: IP4 full_text_status: none abstract: A contribution to the definition of the structural pattern of the Soultz-sous-Forêts EGS (Enhanced Geothermal System) is presented here. After reprocessing, the PHN84J seismic reflection profile highlights the tilted blocks of the Merkwiller-Péchelbronn oilfield. In the Soultz-sous-Forêts horst, complex fault patterns are observed: the Hermerswiller normal fault flattens at depth and is rooted in decollements occurring in Triassic salt or clay series, while other steep normal faults affect underlying sedimentary formations and basement. Some methods for the exploitation of a seismic diffraction recorded by multi-component Vertical Seismic Profiling (VSP) are also illustrated to locate the diffractor without specific data processing. Polarisation and travel time analysis of a diffraction event recorded in the GPK1 borehole are analysed, and its exploitation combined with seismic reflection helps defining a tilted block geometry date: 2010 date_type: published publication: Comptes Rendus Geoscience volume: 342 number: 7-8 publisher: Elsevier pagerange: 575-586 id_number: doi:10.1016/j.crte.2010.01.001 issn: 1631-0713 official_url: http://doi.org/10.1016/j.crte.2010.01.001 access_IS-EPOS: limited owner: Publisher citation: Place, Joachim and Diraison, Marc and Naville, Charles and Géraud, Yves and Schaming, Marc and Dezayes, Chrystel (2010) Decoupling of deformation in the Upper Rhine Graben sediments. Seismic reflection and diffraction on 3-component Vertical Seismic Profiling (Soultz-sous-Forêts area). Comptes Rendus Geoscience, 342 (7-8). pp. 575-586. DOI: https://doi.org/10.1016/j.crte.2010.01.001