Basement control on fault formation and deformation band damage zone evolution in the Rio do Peixe Basin, Brazil

Araújo, Raphael Ferreira de Souza Bezerra; Bezerra, Francisco H.R.; Nogueira, Francisco Cézar Costa; Balsamo, Fabrizio; Carvalho, Bruno R.B.M.; Souza, Jorge André Braz de; Sanglard, Júlio Carlos Destro; Castro, David Lopes de; Melo, Alanny Christiny Costa de

doi:10.1016/j.tecto.2018.08.011

Cited by 38 publications

(12 citation statements)

References 49 publications

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“…The observation of regularly spaced bands associated with a normal-fault regime (Fig. 16c.ii) contrasts with previous studies that have identified a tendency toward localisation rather than pervasively distributed deformation bands (Soliva et al, 2013;Ballas et al, 2014;Araujo et al, 2018;Fossen et al, 2018;Pizzati et al, 2020). Distributed bands have only been observed in extensional settings (1) when associated with large relay ramps, (2) when deformed layers are above soft layers such as shale or salt, and (3) when forming in large rollover structures (Fossen et al, 2018).…”

Section: Deformation Band Spatial Distributioncontrasting

confidence: 82%

“…As DBs are commonly associated with a reduction in permeability and porosity (Fossen and Bale, 2007), it is useful to study their spatial distribution and microphysical properties in potential hydrocarbon reservoir rocks (Field et al, 2006) that travelled through the hydrocarbon window. Preliminary offshore drilling of the Miocene siliciclastic rocks has documented significant gas shows (Amoco New Zealand Exploration Ltd, 1992;Field et al, 2006;Archer et al, 2014), and a study of the onshore analogue could provide useful insights into the reservoir architecture at depth (Field et al, 2006). Therefore, our work complements existing studies by considering rocks with different host-rock properties, which are actively targeted by hydrocarbon exploration (Lee and Begg, 2002;Hessler and Sharman, 2018).…”

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confidence: 99%

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Distribution, microphysical properties, and tectonic controls of deformation bands in the Miocene subduction wedge (Whakataki Formation) of the Hikurangi subduction zone

et al. 2021

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Abstract. We analyse deformation bands related to horizontal contraction with an intermittent period of horizontal extension in Miocene turbidites of the Whakataki Formation south of Castlepoint, Wairarapa, North Island, New Zealand. In the Whakataki Formation, three sets of cataclastic deformation bands are identified: (1) normal-sense compactional shear bands (CSBs), (2) reverse-sense CSBs, and (3) reverse-sense shear-enhanced compaction bands (SECBs). During extension, CSBs are associated with normal faults. When propagating through clay-rich interbeds, extensional bands are characterised by clay smear and grain size reduction. During contraction, sandstone-dominated sequences host SECBs, and rare CSBs, that are generally distributed in pervasive patterns. A quantitative spacing analysis shows that most outcrops are characterised by mixed spatial distributions of deformation bands, interpreted as a consequence of overprint due to progressive deformation or distinct multiple generations of deformation bands from different deformation phases. As many deformation bands are parallel to adjacent juvenile normal faults and reverse faults, bands are likely precursors to faults. With progressive deformation, the linkage of distributed deformation bands across sedimentary beds occurs to form through-going faults. During this process, bands associated with the wall-, tip-, and interaction-damage zones overprint earlier distributions resulting in complex spatial patterns. Regularly spaced bands are pervasively distributed when far away from faults. Microstructural analysis shows that all deformation bands form by inelastic pore collapse and grain crushing with an absolute reduction in porosity relative to the host rock between 5 % and 14 %. Hence, deformation bands likely act as fluid flow barriers. Faults and their associated damage zones exhibit a spacing of 9 m on the scale of 10 km and are more commonly observed in areas characterised by higher mudstone-to-sandstone ratios. As a result, extensive clay smear is common in these faults, enhancing the sealing capacity of faults. Therefore, the formation of deformation bands and faults leads to progressive flow compartmentalisation from the scale of 9 m down to about 10 cm – the typical spacing of distributed, regularly spaced deformation bands.

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Section: Deformation Band Spatial Distributioncontrasting

confidence: 82%

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confidence: 99%

Distribution, microphysical properties, and tectonic controls of deformation bands in the Miocene subduction wedge (Whakataki Formation) of the Hikurangi subduction zone

et al. 2021

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“…Sites 2 and 3 are located along the major intra-basinal fault zones in the Rio Piranhas sandstones and conglomerates, and are characterized by abundant fault zones with meter-scale offsets. Site 4 is located in the hanging wall block of the major basin-boundary fault in the Antenor Navarro sandstones, and has a displacement of ~170 m [36].…”

Section: Methodsmentioning

confidence: 99%

Structural Control on Clay Mineral Authigenesis in Faulted Arkosic Sandstone of the Rio do Peixe Basin, Brazil

et al. 2018

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Clay minerals in structurally complex settings influence fault zone behavior and characteristics such as permeability and frictional properties. This work aims to understand the role of fault zones on clay authigenesis in arkosic, high-porosity sandstones of the Cretaceous Rio do Peixe basin, northeast Brazil. We integrated field, petrographic and scanning electron microscopy (SEM) observations with X-ray diffraction data (bulk and clay-size fractions). Fault zones in the field are characterized by low-porosity deformation bands, typical secondary structures developed in high-porosity sandstones. Laboratory results indicate that in the host rock far from faults, smectite, illite and subordinately kaolinite, are present within the pores of the Rio do Peixe sandstones. Such clay minerals formed after sediment deposition, most likely during shallow diagenetic processes (feldspar dissolution) associated with meteoric water circulation. Surprisingly, within fault zones the same clay minerals are absent or are present in amounts which are significantly lower than those in the undeformed sandstone. This occurs because fault activity obliterates porosity and reduces permeability by cataclasis, thus: (1) destroying the space in which clay minerals can form; and (2) providing a generally impermeable tight fabric in which external meteoric fluid flow is inhibited. We conclude that the development of fault zones in high-porosity arkosic sandstones, contrary to other low-porosity lithologies, inhibits clay mineral authigenesis.

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“…Reactivation of basement structures has been documented in a variety of tectonic settings globally, including beneath developing orogens, continental margins, foreland basins, and rift basins (Stein, 1988;Ross et al, 1991;Lyatsky et al, 2005;Zhao and Cawood, 2012;Zaitlin et al, 2002;Zhao and Cawood, 2012;Godin and Harris, 2014;Skalbeck et al, 2014;Kayode et al, 2017;Araujo et al, 2018).…”

Section: Reactivation Of Basement Structures Beneath Evolving Forelanmentioning

confidence: 99%

“…In areas where the sediment is adjacent to the basement, fault and distinct facies offsets due to basement reactivation should be more readily discernible. Examples include the Vulcan Low and Red Deer zone documented by McMechan (2012), and the study by Araujo et al (2018) of the Rio de Peixe Basin in Brazil, where basement fault reactivation is suggested to have caused a sag that resulted in a thickening of clastic sediments overlying the basement.…”

Section: Reactivation Of Basement Structures Beneath Evolving Forelanmentioning

confidence: 99%

Late Mesozoic reactivation of Precambrian basement structures and their resulting effects on the sequence stratigraphic architecture of the Viking Formation of east-central Alberta, Canada

2019

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The Lower Cretaceous Viking Formation is a siliciclastic unit that occurs in the subsurface of Alberta in the Western Canadian sedimentary basin. This study focuses on a lowstand paleoshoreline trend extending along strike between two hydrocarbon-producing fields, Joarcam and Judy Creek (250 km NW). The Viking Formation in these fields records depositional thicknesses ranging from 20 to 30 m. Between these two fields, however, the formation is anomalously thick (45-60 m), complicating the recognition and correlation of key stratigraphic surfaces. Marine flooding surfaces above and below the Viking Formation are routinely employed as stratigraphic datums in order to remove postdepositional deformation and facilitate the development of a sequence stratigraphic framework. However, as each successive surface is employed as the datum, the other flooding surfaces within the formation become distorted, resulting in unrealistic depositional geometries. These geometries are best explained to be the result of structural readjustments during Viking deposition. The Precambrian lithosphere of the Canadian Shield forms the Western Canadian sedimentary basin basement, with major structures previously mapped using gravity and magnetic anomaly studies. Locally, the increased accommodation observed within the Viking Formation of central Alberta is attributed to differential reactivation of the Paleoproterozoic Snowbird tectonic zone basement structures, which flank the areas of anomalously thick deposits and trend approximately normal to the regional strike of the Western Canadian sedimentary basin. The Snowbird tectonic zone faults are interpreted to have been reactivated during renewed tectonic loading in the southern Canadian Cordillera during Aptian-Albian time, causing subtle readjustments along basement faults that caused variable syndepositional subsidence. By selecting successive datums, the gross Viking interval can be recognized to have accumulated prior to, during, and following structural reactivation.

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Basement control on fault formation and deformation band damage zone evolution in the Rio do Peixe Basin, Brazil

Cited by 38 publications

References 49 publications

Distribution, microphysical properties, and tectonic controls of deformation bands in the Miocene subduction wedge (Whakataki Formation) of the Hikurangi subduction zone

Distribution, microphysical properties, and tectonic controls of deformation bands in the Miocene subduction wedge (Whakataki Formation) of the Hikurangi subduction zone

Structural Control on Clay Mineral Authigenesis in Faulted Arkosic Sandstone of the Rio do Peixe Basin, Brazil

Late Mesozoic reactivation of Precambrian basement structures and their resulting effects on the sequence stratigraphic architecture of the Viking Formation of east-central Alberta, Canada

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