Structural Styles of the Camisea Fold-and-Thrust Belt, Southeast Peru

McClay, K. R.; Scarselli, Nicola; Guevara, Javier Tamara; Hammerstein, James; Gonzalez, Daniel Enrique Torres

doi:10.1306/13622124m11750

Cited by 4 publications

(1 citation statement)

References 22 publications

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“…6 Case study from Atlantic Morocco: offshore anticlines of the Atlas system Inversion tectonics in the Atlas Mountains of Morocco was first described in the 1990s by Laville and Piqué (1992), Giese and Jacobshagen (1992), Lowell (1995), and Beauchamp et al (1996Beauchamp et al ( , 1999. For the last 2 decades many other publications have been devoted to various aspects of inversion in the broader Moroccan Atlas system (Frizon de Lamotte et al, 2000Hafid, 2000Hafid, , 2006Teixell et al, 2003, Missenard et al, 2007Leprêtre et al, 2018;Perez et al, 2019).…”

Section: An Inverted "Syrian Arc Ii" Structure In Israel: the Tamar Gmentioning

confidence: 99%

Inversion tectonics: a brief petroleum industry perspective

Tari

Arbouille²,

Schléder

et al. 2020

Solid Earth

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Abstract. Inverted structures provide traps for petroleum exploration, typically four-way structural closures. As to the degree of inversion, based on a large number of worldwide examples seen in various basins, the most preferred petroleum exploration targets are mild to moderate inversion structures, defined by the location of the null points. In these instances, the closures have a relatively small vertical amplitude but are simple in a map-view sense and well imaged on seismic reflection data. Also, the closures typically cluster above the extensional depocenters which tend to contain source rocks providing petroleum charge during and after the inversion. Cases for strong or total inversion are generally not that common and typically are not considered as ideal exploration prospects, mostly due to breaching and seismic imaging challenges associated with the trap(s) formed early on in the process of inversion. Also, migration may become tortuous due to the structural complexity or the source rock units may be uplifted above the hydrocarbon generation window, effectively terminating the charge once the inversion has occurred. Cases of inversion tectonics can be grouped into two main modes. A structure develops in Mode I inversion if the syn-rift succession in the preexisting extensional basin unit is thicker than its post-rift cover including the pre- and syn-inversion part of it. In contrast, a structure evolves in Mode II inversion if the opposite syn- versus post-rift sequence thickness ratio can be observed. These two modes have different impacts on the petroleum system elements in any given inversion structure. Mode I inversion tends to develop in failed intracontinental rifts and proximal passive margins, and Mode II structures are associated with back-arc basins and distal parts of passive margins. For any particular structure the evidence for inversion is typically provided by subsurface data sets such as reflection seismic and well data. However, in many cases the deeper segments of the structure are either poorly imaged by the seismic data and/or have not been penetrated by exploration wells. In these cases the interpretation in terms of inversion has to rely on the regional understanding of the basin evolution with evidence for an early phase of crustal extension by normal faulting.

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