Juruá Orogeny: Brazil and Andean Countries

Caputo, Mário V.

doi:10.5327/z2317-4889201400020001

Cited by 45 publications

(17 citation statements)

References 19 publications

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“…Probablemente la compresión que generó la inversión del sistema extensivo, este relacionada a la propagación hacia el oeste de la ruptura Tethys de Laurasia y Gondwanna durante la apertura inicial del Océano Atlántico, expresando deformación tectónica en el borde del Pacífico (Jaillard et al, 1995). Las cuencas de Acre de Brasil y Solimões invertidas en el Jurásico Tardío durante la Orogenia Juruá (Caputo, 2014), coinciden con la gran compresión y cizallamiento en los países andinos, por lo que se podría atribuir a la orogenia brasileña Juruá (Caputo, 2014).i)…”

Section: Discussionunclassified

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Arquitectura estructural y estratigráfica de la secuencia pre-aptiense de la cuenca oriente ecuatoriana

Angulo¹,

Bustos

Navarrete

et al. 2018

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ResumenLa configuración estructural y estratigráfica de la secuencia pre-Aptiense en la Cuenca del Oriente, se deriva del desarrollo de dos eventos tectónicos superpuestos. El primero pertenece a la aparición de un régimen extensional durante el Jurásico Medio-Valanginiense, representado por depresiones de hemi-graben y graben que constituyen los tres dominios tectónicos de la cuenca. En el graben Sacha-Shushufindi, el relleno sedimentario son representados por sedimentos volcaniclásticos continentales de la Formación Chapiza, parcialmente contemporáneos con la actividad del arco volcánico Jurásico Misahuallí (Tschopp, 1953), que se desarrolla en el margen occidental de la cuenca. Probablemente, la extensión está vinculada a los períodos de retroceso de un slab que se evidencia por el desarrollo de una zona de subducción y un control extensional en la región de arco posterior. El segundo episodio representa la inversión de fallas normales a inversas producidas a partir de una tectónica de compresión, lo que resulta en mega estructuras positivas (Anticlines Sacha y Shushufindi). L a e dad de l a i nversión p odría estar relacionada c on l a é poca volcánica Hauteriviense de la Formación Chapiza Superior o Miembro Yaupi, que se desarrollan en una sola operación contra la estructura invertida de Sacha. AbstractThe structural and stratigraphic configuration of the pre-Aptian sequence in the Oriente Basin, is derived from the development of two overlapping tectonic events. The first, belongs to the apperarance of an extensional regime during the Middle Jurassic-Valanginian, represented by half-graben and graben depressions that constitute the three tectonic domains of the basin. At the Sacha-Shushufindi graben the sedimentary filling are continental volcaniclastic sediments of the Chapiza Formation, partially contemporaneous whit the activity of the Jurassic Misahuallí volcanic arc (Tschopp, 1953), that is developed in the western margin of the basin. Probably the extension is linked to salb roll-back periods by the development of a subduction zone and an extensional control in the back-arc region. The second episode represents the inversion of normal to inverse faults produced from a compressive tectonics, which results in mega positive structures (Sacha and Shushufindi An ticlines). The age of the inversion could be related to the Hauterivian volcanic of the Upper Chapiza Formation or Yaupi Member, which are developed in onlap against the Sacha inverted structure.Structural and stratigraphic architecture of the pre-aptian sequence of the oriente basin ARTÍCULO ORIGINAL Recibido

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Section: Discussionunclassified

“…La inversión tectónica podría estar relacionada con la propagación hacia el oeste de la ruptura Tethys, durante la apertura inicial del Océano Atlántico expresando deformación tectónica en el continente, conocida como la Orogenia Juruá, en Brasil (Caputo, 2014).…”

Section: Conclusionesunclassified

Arquitectura estructural y estratigráfica de la secuencia pre-aptiense de la cuenca oriente ecuatoriana

Angulo¹,

Bustos

Navarrete

et al. 2018

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“…Further west, increasing compression pushed South America's northern margin even more strongly against the Jurassic Central Atlantic, Gulf of Mexico, and protoCaribbean. Within northern South America, this compression deformed until then undisturbed Paleozoic sediments and CAMP diabase sills in the Upper Amazonian Solimões Basin, forming NE-SW to E-W-trending hydrocarbon-bearing anticlines up to 600 m high, erosionally overlain by flat-lying late Aptian to Albian sediments (Szatmari, 1983;Eiras, 1998;Caputo, 2014;and Travassos, oral comm.). Caputo (2014) attributed this deformation to ENE-WSW shear along the Amazonian basins.…”

Section: Compression Along the Equatorial Margin And In The Solimões mentioning

confidence: 96%

“…During the Mesozoic, this lineament was reactivated by left-lateral strike slip (Morais Neto et al, 2013). To this Proterozoic framework we added (in red): PJ -the Pisco-Jurua fault (Szatmari, 1983), a similarly left-lateral strike-slip fault along the continuation of the Central Atlantic rift; D -location of E-W to ESE-WNW-trending pre-late Albian thrusts in the Demerara Plateau (Basile et al, 2013), and S -location of E-W to NE-SW-trending pre-Aptian reverse faults in the Solimões Basin (Caputo et al, 2014;Travassos, oral comm. ).…”

Section: Compression Along the Equatorial Margin And In The Solimões mentioning

confidence: 99%

Tectonic control of the oil-rich large igneous-carbonate-salt province of the South Atlantic rift

Szatmári

Milani

2016

Marine and Petroleum Geology

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“…O fato é que a colisão se estabelece (máxima do encontro físico das placas em interação), mas a convergência ("padrão de convecção" ou causa similar) continua, e isto passa a ser retratado nas longas linhas/zonas de escape tectonics (tectônica de escape), que geralmente estendem a deformação para áreas vizinhas, por longas distâncias, e até mesmo para a até funcionar no caso de arcos neutros ou extensionais, mas quando se trata de arcos compressionais (flat slab, pequeno ângulo da subdução), os esforços e a deformação podem se propagar até por distâncias superiores a 2.000 km. O exemplo dos Andes peruanos é o o mais próximo da plataforma Sul-Americana mais próximo, onde a deformação se propagou pelo menos até o meridiano de Manaus (mais de 2.100 km de extensão, segundo Caputo (2014). Deve-se acrescentar que arcos compressionais podem ter mudanças para extensionais (caso do oeste norte-americano, a partir do inicio do Cenozoico), no caso de ocorrer mudanças importantes na idade dos tratos oceânicos em subdução, propiciando que estejam sobrepostos (em tempo diferentes) tipos de deformação totalmente antagônicas em tipologias.…”

Section: Calor Advindo Do Manto Litosféricounclassified

Orogenias: das margens continentais ao interior remoto das placas, uma revisão no tema

Neves

2016

Terrae Didat.

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This paper intends to review and to organize a synthesis on the problem of orogens classification, since the beginning of the Plate Tectonics concepts in the early 1970 decade. During this decade and the subsequent, additional observations, information and data were proposed to enrich the original concepts, considered classical on this subject. From the critical analysis on those original models, based on the observation of many Paleozoic and Proterozoic orogenic systems as well as on complementary observation of the rheology of the lithosphere and its thermal-tectonic behavior with time, some newer models ("alternatives") became available, mainly during the 1980 decade. Most of these new models have focused cases of orogeny without participation of oceanic lithosphere, in the remote interior continental, and with local processes of continental lithosphere subduction ("A" subduction). From the 1990 decade onwards, many published studies have contested the rigidity of the lithosphere plates, calling attention for the possibility of weakening of a plate (rigidity decay) by intrinsic thermal processes, together with new advanced studies about causes of subsidence (basin forming tectonics). So, it was accomplished that intracontinental orogenies were rather extreme cases of basin inversion, and that the stress fields use to be formed very far, at active margins, were able of penetrate up to some thousands of kilometers to the interior of the continents, and so they would also be the responsible (basin deforming tectonics) by those orogenies, far from the suture zones. In most of the continents, new cases of intracontinental orogens have been recognized, since the 90 decade. Although the concept of intracontinental orogenies ("telesutural" types) still is in the flux stage, it is possible to assume that this is a consolidated concept in the first days of the XXI century, but it is still far away from textbooks. This paper intends to draw an historical of the theme; it finishes with a proposal of classification of orogenies, having in mind three groups of the main process variables: position of the orogen (distance from a suture zone); the geometric-geologic scheme (in plant); and degree of exumation. TerraeDid atic a ARTIGO Manuscrito:

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Juruá Orogeny: Brazil and Andean Countries

Cited by 45 publications

References 19 publications

Arquitectura estructural y estratigráfica de la secuencia pre-aptiense de la cuenca oriente ecuatoriana

Arquitectura estructural y estratigráfica de la secuencia pre-aptiense de la cuenca oriente ecuatoriana

Tectonic control of the oil-rich large igneous-carbonate-salt province of the South Atlantic rift

Orogenias: das margens continentais ao interior remoto das placas, uma revisão no tema

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