000003647 001__ 3647 000003647 005__ 20181023094305.0 000003647 0247_ $$2DOI$$a10.1016/j.jsg.2018.10.009 000003647 037__ $$aSCART-2018-0072 000003647 100__ $$aVan Noten, Koen 000003647 245__ $$aPleistocene-Holocene tectonic reconstruction of the Ballık travertine (Denizli Graben, SW Turkey): (De)formation of large travertine geobodies at intersecting grabens 000003647 260__ $$c2019 000003647 520__ $$aTravertine geobodies have been identified as potential reservoir analogues to carbonate build-ups in pre-salt hydrocarbon systems. To investigate travertine geobody deformation, faults were mapped in 35 travertine quarries that excavate the Ballık travertine, i.e. a c. 12.5 km2 large travertine geobody that precipitated at the intersection of the NE margin of the Denizli Basin and neighbouring Baklan Graben (SW Turkey). This travertine precipitated from cooling carbonate-saturated thermal spring waters that resurfaced along the margin fracture/fault network and through Neogene unconsolidated underlying sediments. From the Denizli basin floor to the uplifted graben shoulders, fault orientation is dominantly WNW-ESE oriented with major basin faults showing a left-stepping trend. Along the upper Denizli margin, travertine is only deformed by extensional normal faults. Along the lower margin, travertine starts with a subhorizontal facies but evolves to a travertine facies formed by a sloping topography with a domal architecture. Paleostress inversion of fault-slip data reveals that an Early Pleistocene NNE-SSW extensional-transtensional phase initiated the WNW-ESE oriented, graben-facing normal fault network. In the Middle Pleistocene, the Ballık fault network was left-lateral strike-slip reactivated because it acted as a transfer zone between the NW-SE extending neighbouring Baklan Basin and NW-SE extension along NE-SW oriented margin faults of the DGHS. In this stress configuration, travertine precipitated along the SW margin fault of the Baklan Graben. After strike-slip reactivation, a Late Pleistocene-to-current NNE-SSW extensional stress regime reinstalled during which margin faults widened and active travertine precipitation moved to more central parts of the DGHS. As different tectonic regimes affect graben intersections, reservoir analogues can have a complex deformation history driven by fault reactivation and recurrent stress permutations. This study concludes that large travertine geobodies can form at graben intersections because of their susceptibility to enhanced fluid flow through the complex fault-fracture network. 000003647 536__ $$aTraRAS Joint Industry Project/$$cTraRAS Joint Industry Project/$$fTraRAS Joint Industry Project 000003647 594__ $$aNO 000003647 6531_ $$aFault mapping 000003647 6531_ $$aExtension 000003647 6531_ $$aTranstension 000003647 6531_ $$aTransfer zone 000003647 6531_ $$aStrike-slip reactivation 000003647 6531_ $$aPaleostress analysis 000003647 6531_ $$aTravertine facies development 000003647 700__ $$aTopal, S. 000003647 700__ $$aBaykara, M.O. 000003647 700__ $$aÖzkul, M. 000003647 700__ $$aClaes, Hannes 000003647 700__ $$aAratman, A. 000003647 700__ $$aSwennen, Rudy 000003647 773__ $$c114-134$$pJournal of Structural Geology$$v118$$y2019 000003647 8560_ $$fkoen.vannoten@observatoire.be 000003647 85642 $$ahttps://eartharxiv.org/4vw6d/ 000003647 8564_ $$s13201222$$uhttp://publi2-as.oma.be/record/3647/files/2019-VanNotenetal-tectonic reconstruction Ballik travertine.pdf 000003647 8564_ $$s5290$$uhttp://publi2-as.oma.be/record/3647/files/2019-VanNotenetal-tectonic reconstruction Ballik travertine.gif?subformat=icon$$xicon 000003647 8564_ $$s6792$$uhttp://publi2-as.oma.be/record/3647/files/2019-VanNotenetal-tectonic reconstruction Ballik travertine.jpg?subformat=icon-180$$xicon-180 000003647 905__ $$apublished in 000003647 980__ $$aREFERD