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Sedimentary facies control on mechanical and fracture stratigraphy in turbidites

2016; Geological Society of America; Volume: 129; Issue: 1-2 Linguagem: Inglês

10.1130/b31517.1

1943-2674

Kei Ogata, Fabrizio Storti, Fabrizio Balsamo, Roberto Tinterri, Enrico Bedogni, Marcos Fetter, Leonardo Gomes, Raphael Hatushika,

Geological formations and processes

Research Article| January 01, 2017 Sedimentary facies control on mechanical and fracture stratigraphy in turbidites Kei Ogata; Kei Ogata 1NEXT—Natural and Experimental Tectonics Research Group, Dipartimento di Fisica e Scienze della Terra "Macedonio Melloni," Università di Parma, 43124 Parma, Italy †Present address: Faculty of Earth and Life Sciences, VU University, 1081 HV, Amsterdam, The Netherlands; k.ogata@vu.nl. Search for other works by this author on: GSW Google Scholar Fabrizio Storti; Fabrizio Storti 1NEXT—Natural and Experimental Tectonics Research Group, Dipartimento di Fisica e Scienze della Terra "Macedonio Melloni," Università di Parma, 43124 Parma, Italy Search for other works by this author on: GSW Google Scholar Fabrizio Balsamo; Fabrizio Balsamo 1NEXT—Natural and Experimental Tectonics Research Group, Dipartimento di Fisica e Scienze della Terra "Macedonio Melloni," Università di Parma, 43124 Parma, Italy Search for other works by this author on: GSW Google Scholar Roberto Tinterri; Roberto Tinterri 2Dipartimento di Fisica e Scienze della Terra "Macedonio Melloni," Università di Parma, 43124 Parma, Italy Search for other works by this author on: GSW Google Scholar Enrico Bedogni; Enrico Bedogni 1NEXT—Natural and Experimental Tectonics Research Group, Dipartimento di Fisica e Scienze della Terra "Macedonio Melloni," Università di Parma, 43124 Parma, Italy Search for other works by this author on: GSW Google Scholar Marcos Fetter; Marcos Fetter 3Petrobras E&P, Avenida Chile 65, Rio de Janeiro, RJ, 20031-912, Brazil Search for other works by this author on: GSW Google Scholar Leonardo Gomes; Leonardo Gomes 3Petrobras E&P, Avenida Chile 65, Rio de Janeiro, RJ, 20031-912, Brazil Search for other works by this author on: GSW Google Scholar Raphael Hatushika Raphael Hatushika 3Petrobras E&P, Avenida Chile 65, Rio de Janeiro, RJ, 20031-912, Brazil Search for other works by this author on: GSW Google Scholar GSA Bulletin (2017) 129 (1-2): 76–92. https://doi.org/10.1130/B31517.1 Article history received: 19 Feb 2016 rev-recd: 07 Jul 2016 accepted: 03 Aug 2016 first online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation Kei Ogata, Fabrizio Storti, Fabrizio Balsamo, Roberto Tinterri, Enrico Bedogni, Marcos Fetter, Leonardo Gomes, Raphael Hatushika; Sedimentary facies control on mechanical and fracture stratigraphy in turbidites. GSA Bulletin 2017;; 129 (1-2): 76–92. doi: https://doi.org/10.1130/B31517.1 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract Natural fracture networks exert a first-order control on the exploitation of resources such as aquifers, hydrocarbons, and geothermal reservoirs, and on environmental issues like underground gas storage and waste disposal. Fractures and the mechanical stratigraphy of layered sequences have been intensively studied to unravel the relationships between bed thickness and fracture spacing, but less attention has been paid to intrabed fracturing patterns due to the intrinsic local variability of sedimentary processes and products. Among sedimentary rocks, turbidites show great lateral and vertical variability of textural characteristics and depositional facies, which are expected to strongly influence the location and density of fractures. To better understand the contribution of stratigraphic, sedimentologic, and petrophysical properties on fracture patterns, we performed a high-resolution study on a selected stratigraphic interval of jointed foredeep turbidites in the Miocene Marnoso-Arenacea Formation (Northern Apennines, Italy). Cumulative statistical relations of field and laboratory structural, sedimentologic, and petrophysical data significantly improved when analyzed at the sedimentary facies scale. In particular, for facies recording different cross-flow (i.e., longitudinal to the paleocurrents) depositional conditions within the parent turbidity currents, we observed three-dimensional anisotropies of rock hardness (i.e., uniaxial compression) that were positively correlated with normalized fracture intensities, indicating a primary sedimentary control on fracture distribution. This type of intrabed joint distribution has crucial practical implications for the lateral prediction and evaluation of mesoscale fracture patterns in turbidite sequences. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.