Characterization of deformation bands associated with normal and reverse stress states in the Navajo Sandstone, Utah

Solum, John; Brandenburg, J. P.; Naruk, Stephen J.; Костенко, О.В.; Wilkins, Scott J.; Schultz, R. A.

doi:10.1306/01051009137

Cited by 32 publications

(25 citation statements)

References 66 publications

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“…At a more detailed scale, the structural control of the Olevano–Antrodoco thrust fault is suggested by the development of deformation bands [e.g., Antonellini and Aydin , , ; Eichhubl et al ., ; Solum et al ., ]. Several studies demonstrated that close to a fault plane and within the damage zone, where deformation bands are well developed, permeability and porosity are lower than in the undeformed rocks [e.g., Zhu and Wong , ; Solum et al ., ; Wong and Baud , ].…”

Section: Discussionmentioning

confidence: 99%

Tectonic control on the petrophysical properties of foredeep sandstone in the Central Apennines, Italy

et al. 2014

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Petrophysical properties of rocks and their applicability at larger scale are a challenging topic in Earth sciences. Petrophysical properties of rocks are severely affected by boundary conditions, rock fabric/microstructure, and tectonics that require a multiscale approach to be properly defined. Here we (1) report laboratory measurements of density, porosity, permeability, and P wave velocities at increasing confining pressure conducted on Miocene foredeep sandstones (Frosinone Formation); (2) compare the laboratory results with larger-scale geophysical investigations; and (3) discuss the effect of thrusting on the properties of sandstones. At ambient pressure, laboratory porosity varied from 2.2% to 13.8% and P wave velocities (V p ) from 1.5 km/s to 2.7 km/s. The P wave velocity increased with confining pressure, reaching between 3.3 km/s and 4.7 km/s at 100 MPa. In situ V p profiles, measured using sonic logs, matched the ultrasonic laboratory measurement well. The permeability varied between 1.4 × 10 À15 m 2 and 3.9 × 10 À15 m 2 and was positively correlated with porosity. The porosity and permeability of samples taken at various distances to the Olevano-Antrodoco fault plane progressively decreased with distance while P wave velocity increased. At about 1 km from the fault plane, the relative variations reached 43%, 65%, and 20% for porosity, permeability, and P wave velocity, respectively. This suggests that tectonic loading changed the petrophysical properties inherited from sedimentation and diagenesis. Using field constraints and assuming overburden-related inelastic compaction in the proximity of the fault plane, we conclude that the fault reached the mechanical condition for rupture in compression at differential stress of 64.8 MPa at a depth of 1500 m.

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Section: Discussionmentioning

confidence: 99%

Tectonic control on the petrophysical properties of foredeep sandstone in the Central Apennines, Italy

et al. 2014

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“…Detailed structural investigation of the well-exposed small faults with an approximate north-south strike and dip-slip movements, dipping in two opposite directions in the San Rafael Swell, is suggested to predate the major folding (Fischer & Christensen 2004). To the north of our study area, the Chimney Rock fault array and the Big Hole Fault have been investigated (Shipton & Cowie 2001;Davatzes et al 2003;Solum et al 2010). Faults in this area occur in four sets, making up two populations of opposite dipping pairs with ENE and WNW strike.…”

Section: Geological Settingmentioning

confidence: 99%

Fault baffle to conduit developments: reactivation and calcite cementation of deformation band fault in aeolian sandstone

Skurtveit

Torabi

Alikarami

et al. 2014

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The damage zone of three small faults in the Navajo and Page formations, located on the NE side of San Rafael Swell, Utah, USA, are studied. Scanlines and microstructural analyses are used to document three distinct deformation events: (1) an early phase creating cataclastic deformation bands, during which most of the displacement on the fault took place; (2) a fracturing event with opening and shearing along fractures; and (3) fluid flow and local calcite precipitation along the NW-trending faults. Microstructural characterization of deformation structures shows complex interaction between deformation bands, fractures and the calcite precipitation. Calcite cement is observed as veins in the host rock and along cataclastic bands, with varying amount of cataclastic material floating within the veins. In addition to patchy calcite cement in the host rock, extensive poikilotopic cementation is observed to extend into cataclastic bands with a low degree of cataclasis. However, some cataclastic bands with a high degree of cataclasis show almost no cementation. Development of deformation bands and their link to fracturing affected the flow field, from a fault baffle to a conduit. Calcite cementation reveals the flow paths, before cementation recreated the fault baffle.

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“…SECBs are notably thicker (cm-scale) than the mm-thick cataclastic bands (CSBs) widely reported from extensional settings, and show much smaller (typically less than 1 mm) shear offsets that are quantitatively comparable to the compaction-induced offsets (Eichhubl, 2010). It has also been Submitted to Journal of Structural Geology suggested that shortening of porous sandstones generates more distributed arrays of bands than what is typically seen in the extensional regime (Solum et al, 2010). This was explored in detail by Ballas et al (2012 and, who studied poorly consolidated porous sandstones in Provence, France.…”

Section: Introductionmentioning

confidence: 95%

Contractional deformation of porous sandstone: Insights from the Aztec Sandstone, SE Nevada, USA

Fossen

Zuluaga

Ballas

et al. 2015

Journal of Structural Geology

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International audienceContractional deformation of highly porous sandstones is poorly explored, as compared to extensional deformation of such sedimentary rocks. In this work we explore the highly porous Aztec Sandstone in the footwall to the Muddy Mountain thrust in SE Nevada, which contains several types of deformation bands in the Buffington tectonic window: 1) Distributed centimeter-thick shear-enhanced compaction bands (SECBs) and 2) rare pure compaction bands (PCBs) in the most porous parts of the sandstone, cut by 3) thin cataclastic shear-dominated bands (CSBs) with local slip surfaces. Geometric and kinematic analysis of the SECBs, the PCBs and most of the CSBs shows that they formed during ∼E–W (∼100) shortening, consistent with thrusting related to the Cretaceous to early Paleogene Sevier orogeny of the North American Cordilleran thrust system. Based on stress path modeling, we suggest that the compactional bands (PCBs and SECBs) formed during contraction at relatively shallow burial depths, before or at early stages of emplacement of the Muddy Mountains thrust sheet. The younger cataclastic shear bands (CSBs, category 3), also related to E–W Sevier thrusting, are thinner and show larger shear offsets and thus more intense cataclasis, consistent with the initiation of cataclastic shear bands in somewhat less porous materials. Observations made in this work support earlier suggestions that contraction lead to more distributed band populations than what is commonly found in the extensional regime, and that shear-enhanced compaction bands are widespread only where porosity (and permeability) is high

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Characterization of deformation bands associated with normal and reverse stress states in the Navajo Sandstone, Utah

Cited by 32 publications

References 66 publications

Tectonic control on the petrophysical properties of foredeep sandstone in the Central Apennines, Italy

Tectonic control on the petrophysical properties of foredeep sandstone in the Central Apennines, Italy

Fault baffle to conduit developments: reactivation and calcite cementation of deformation band fault in aeolian sandstone

Contractional deformation of porous sandstone: Insights from the Aztec Sandstone, SE Nevada, USA

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