Retroarc basin The hinterland thrust domain includes faulted and folded rocks of Jurassic Sarmiento Ophiolitic Complex and Longitudinally, foreland basins commonly empty into contours are continuous on both sides of the basin, marginal or remnant oceanic basins (Fig. The Bermejo Basin is a retroarc foreland basin situated ~30 – 33°S above the Chilean-Pampean fl at slab segment in the southern central Andes (Figure 1). INTRODUCTION. Leier† Peter G. The Karoo basins of south-central Africa evolved during the first-order cycle of supercontinent assembly and breakup of Pangea, margin of Gondwana, which resulted in the formation of a retroarc foreland system known as the "main Karoo" Basin, with the primary subsidence mechanisms represented by flexural and dynamic loading. Horton1,3, N. A foreland basin system is defined as: (a) an elongate region of potential sediment accommodation that forms on continental crust between a contractional orogenic belt and the adjacent craton, mainly in response to geodynamic processes related to subduction and the resulting peripheral or retroarc fold‐thrust belt; (b) it consists of four discrete depozones, The Triassic Western Canadian Sedimentary Basin (WCSB), which was also a restricted, retroarc foreland basin is a partial palaeogeographical and depositional analogue for the Jurassic WIS, but even then, the turbidite deposits of the Montney Formation, the record of the Montney sea within the WCSB, have no equivalents in the Sundance Formation The Chaco foreland basin is located in the Subandean region, including areas from northwestern Argentina and southern Bolivia (Fig. , Dickinson, 1974; Miall, 1995) that largely formed in response to tectonic loading during four, nearly continuous orogenies on the eastern margin of Laurentia/Laurussia during approximately 220 Ma from the Early–Middle Ordovician transition in a retroarc foreland basin. Content you previously purchased on Oxford Biblical Studies Online or Oxford Islamic Studies Online has now moved to Oxford Reference, Oxford Handbooks Online, Oxford Scholarship Online, or What Everyone Needs to Know®. , 1989; Gurnis, 1992; Holt and Stern, 1994; Burgess et al retro-arc basin A type of back-arc basin which is floored by continental crust. Unconformities in foreland basins can be attributed to tectonic, climatic, eustatic and internally driven (autogenic) processes. They are formed by the regional isostatic compensation by lithospheric flexure driven by both the topography and internal density variations of mountain ranges; additional bending forces on the downflexed This evidence suggests that (1) detrital zircons of retroarc foreland basin strata record the magmatic history of the post-Late Jurassic arc and that (2) the Cordilleran magmatic arc formed a drainage divide beginning by Late Jurassic time that blocked eastward transport of Cordilleran terrane-derived sediments. The limestone beds of the Penbo Member were deposited in a shallow-marine seaway that was eventually infilled by clastic sediment derived principally from the Gangdese volcanic arc. Whereas others have focused on the stratigraphic Retroarc foreland basins record information about the relative movements between the trench, the subducting and the overriding plate and their study led to the development of evolutionary models (e. (a) Stratigraphic correlation plot across the Argentina retroarc basin system. (A) Flexural profile for a thin, infinite, elastic plate developed, Oligo Retroarc basin reorganization and aridification during Paleogene uplift of the southern central Andes J. Capaldi1,2, Brian K. (B) Geologic map compiled from Malumián et al. The Magallanes-Austral retroarc foreland basin of southernmost South America presents an excellent setting in which to examine interpretive methods for large detrital zircon data sets. Search 223,152,617 papers from all fields of science. retroarc foreland basins, with implications for the geodynamics of Andean-type convergent plate boundaries. Matthew Fabijanic a 1 , Lin Ding c The Sub-Andean retroarc region is a unique example of an active continental-scale retroarc foreland basin system. J. C. DeCelles Paul Kapp Department of Geosciences, University of Arizona, Tucson, Arizona 85721, USA Lin Ding Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100029, People’s Republic of China The Magallanes-Austral retroarc foreland basin of southernmost South America presents an excellent setting in which to examine interpretive methods for large detrital zircon data sets. the trench, the subducting and the overriding plate and their study led to the development of. Request PDF | Detrital zircon geochronology of Cordilleran retroarc foreland basin strata, western North America | [1] We present a compilation of 8717 U-Pb analyses from 95 detrital zircon This study presents new subsidence modeling of the Rocas Verdes Backarc Basin (RVB) and Magallanes‐Austral retroarc foreland basin (MAB) of southernmost South America to evaluate along‐strike Understanding the effects of flat slab subduction on mountain building, arc magmatism, and basin evolution is fundamental to convergent‐margin tectonics, with implications for potential feedbacks among geodynamic, magmatic, and surface processes. NP, Nazca plate; NSR, North Scotia Ridge. Basin Research, 2010. One important differ-ence between the proarc and retroarc foreland settings is Spatial and temporal variation in retroarc basin deposition and Andean arc magmatism during Pampean flat-slab subduction. Foreland basins are the sedimentary basins located on continental lithosphere at the outer edge of mountain belts (cf. The Andean Basin constitutes the foredeep depozone of this foreland system (including the Potosí, Oriente, Acre and Marañon basins). In the last years, U–Pb dating of detrital and igneous zircons from marine and continental sedimentary deposits of the retroarc Neuquén Basin (Fig. , 1995) or zones of backarc belt and is not wedge-shaped in transverse cross-section Neogene Retroarc Foreland Basin Evolution, Sediment Provenance, and Magmatism in Response to Flat Slab Subduction, Western Argentina Tomas N. Here we summarize retroarc structural styles within the Andean orogenic belt and foreland basin system through consideration of regional contractional fault geometries, their kinematic Figure 1. Jordan. The motivation is to describe thesepossibilities and criticallyassessancient andmodern examples from the Andean foreland basin of western South America. 16 A), and they Retroarc foreland systems have a distinct stratigraphic architecture relative to A complex, retroarc foreland basin system is present along the north-eastern and northern side of the Sumatra-Java magmatic arc and We confirm and refine the timing of Cretaceous sedimentation and present new evidence of Late Cretaceous alluvial deposits derived from the In response to the convergence, the South China Block correspondingly changed from the Precambrian failed rift basin into a retroarc foreland basin system, resulting in forming the unconformity between the Cambrian and Ordovician successions, magmatism, and metamorphism along the southeastern margin of the present South China Block [6, 7, 9 simply pro-) foreland basins, where placed in front of the orogenic belt––on the descending (pro-lithosphere) plate, or as retroarc (retro-) foreland basins, where placed behind the orogenic belt––on the overriding (retro-lithosphere) plate (Fig. Skip to search form Skip to main content Skip to account menu. The motivation is to describe thesepossibilities and criticallyassessancient andmodern Collectively, our studies, together with previously documented Cretaceous thrusting in the Lhasa terrane, suggest the Lower Cretaceous Selin Co basin was deposited in a retroarc foreland basin. Fosdick1, Brian W. It is structurally bound to the west Unconformity development in retroarc foreland basins: Implications for the geodynamics of Andean-type margins April 2022 Journal of the Geological Society 179:jgs2020-263 However, the retroarc basin interpretation for the Sierra de Santa Rosa Formation remains speculative in the absence of an identifiable orogen. (2000), SERNAGEOMIN (2003), and Fosdick et al. Sign In Create Free Account. Broken foreland basins are caused by crustal-scale contractional basement structures that compartmentalize (or break) a contiguous retroarc or collisional foreland basin into smaller disconnected Stratigraphic record across a retroarc basin inversion: Rocas Verdes–Magallanes Basin, Patagonian Andes, Chile Andrea Fildani; Andrea Fildani 1. The beginning of major deformation in the Andes also varies along trend. , Kamola and Huntoon, 1995 Detrital zircon U‐Pb age distributions from the western (Calingasta basin), central (Talacasto and Albarracín basins), and eastern (Bermejo foreland basin) segments of the retroarc basin system preserve syndepositional volcanism and orogenic unroofing of retroarc basin evolution in the interior North . Ryan McKenzie4 Depositional models for retroarc foreland basin systems commonly imply a direct link between thrust belt dynamics and sediment supply, despite documented complexity between orogen-transverse and orogen-parallel (axial) sediment routing systems. Peripheral foreland basins: lie on the continental crust of the subducting plate. In dune fields along the Andean retroarc basin, sediment composition defines a steady northward decrease in volcanic detritus. Basin Fill Load 3. Dynamic subsidence in the North American retroarc foreland has been proposed as dominant in the Late Cretaceous; however, questions remain about the nature of the subcrustal load and the basin response to such processes. The Oxford Biblical Studies Online and Oxford Islamic Studies Online have retired. 1a) has shed light over the Mesozoic evolution of the western border of South America. By tectonic setting and origin, the Appalachian Basin is a multistage or composite, retroarc foreland basin (e. , 2020) . For such sedimentary deposits, the identification of the source areas has pointed out major paleogeographic changes during the Retroarc foreland basins are important archives of continental arc magmatism and upper plate deformational processes that control the evolution of continental lithosphere. Horton, 2022). Because retroarc deformation predates flat-slab subduction, we propose that slab anchoring may have been the precursor of Eocene–Oligocene compression in the Andean retroarc. Together they form a unique fingerprint. During Pleistocene glacial/interglacial cycles, sediment production was greatly enhanced in the most elevated We propose that the Bauru Basin is a component of a retroarc foreland system developed during the early stages of the Andean evolution and that it was developed in the back-bulge province of this system. This study offers new insights on the provenance and tectonic setting of the Northern Sydney Basin, eastern Australia. DeCelles a , Edwin H. Retroarc foreland basin systems that develop in settings where the geologic history preconditions the lithosphere to deflect under loads are likely to evolve different basin geometry, sedimentary facies, and stratigraphic The aim of this research is to understand the tectonic setting of the Bauru Basin. B. This reflects active magmatism in the Southern Volcanic Zone and Payenia province (38°-34°S), in contrast with the ~600-km-long Pliocene-Quaternary magmatic gap in the Pampean flat-slab segment (33°-27°S), where sediment is retroarc foreland basins, with implications for the geodynamics of Andean-type convergent plate boundaries. Vertical black lines The development of continental margin basins or retroarc basins occurred during the Jurassic time. Ortiz 5 , and P. This paper considers long-duration (>1–20 myr) The newly created depozones are referred to as proarc (or simply pro-) foreland basins, where placed in front of the orogenic belt––on the descending (pro-lithosphere) plate, or as retroarc (retro-) foreland basins, where placed behind the orogenic belt––on the overriding (retro-lithosphere) plate (Fig. , 2012), and they are receptacles for detritus The Appalachian Basin is a composite, retroarc foreland basin that in many ways is the “type” foreland basin and the “type area” for the Wilson cycle. The main sediments are fluvial, deltaic, or marine, derived from the uplifted area behind the arc. Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305, USA. (2011). Heavily targeted for hydrocarbon exploration, the region hosts a large volume of subsurface data coupled to surface studies dedicated to refining its KINEMATIC EVOLUTION OF THE PATAGONIAN RETROARC FOLD‐ THRUST BELT AND MAGALLANES FORELAND BASIN, CHILE AND ARGENTINA, 51°30’S Julie C. This basin in central-eastern South America has been classified as intracratonic, but the basin-fill geometry, the involved subsidence mechanisms and the age of the deposits are poorly understood. M. Most detritus ends up in the Atlantic Ocean due to low, long-term retroarc-basin storage capacity. Stratigraphic sections from Argentina retroarc basins, location of rock samples and associated depositional age, paleocurrent measurements (rose diagrams), and clast count sites (CC). Graham1 1Department of Geological and Environmental Sciences, Stanford University, Stanford, CA The main celestite and barite metallotects of the Andes are presently known in the Neuquén basin, developed along the retroarc side of the Andean Chain (Fig. 1. Incorporating the depositional and deformation variations, we propose a retroarc foreland basin that was developed on the South China Block in response to final suturing between the South China Following the retroarc shortening, the foreland system underwent extension-related tectono-thermal overprinting in Late middle Jurassic to Cretaceous time (∼172–150 Ma and ∼136–118 Ma), as expressed by widespread extensional basin and dome generation, and voluminous magma intrusion/eruption (Zhou and Li, 2000, Zhou et al. Subduction Load 4. , 2006, Li et al. Such mountain belts are flanked on either side by two peripheral foreland basins, one over the underthrust plate and one over the over‐riding plate; these have been termed pro‐ and The width of the basin indicates that this is not a simple flexurally induced foreland basin system, but that more regional subsidence was likely driven by mantle flow caused subduction of oceanic lithosphere; this process pulls the lithosphere downward in retroarc settings forming large retroarc basins such as the Cretaceous Interior Seaway of Retroarc foreland basins record information about the relative movements between. Retroarc foreland systems form through the flexural deflection of the lithosphere in response to a combination of supra- and sublithospheric especially where subduction is rapid and/or takes place at a shallow angle beneath the retroarc foreland basin (Mitrovica et al. , 2011; Spikings et al. , 2014, Ji Semantic Scholar extracted view of "Retroarc foreland and related basins" by T. From 145–90 Ma, a retroarc foreland basin was presumed to develop in the Lhasa terrane, migrating from the south to the north. The formation of sedimentary deposits ceased at ~ 250 Ma due to the collision of the Sino-Korean Craton and South China Craton that generated the Triassic Songnim orogeny in Korea. Backstripped tectonic basin subsidence histories are critical for interpreting phases of lithospheric deformation and paleoenvironmental change from the stratigraphic record. Gehrels a , Peter G. Reat 3 , B. , 2010; Sanchez-Garcia et al. Spatial and temporal variation in retroarc basin deposition and Andean arc magmatism during Pampean flat-slab subduction. In this work, the ranges of the fossil taxa are analyzed and ages are proposed for Request PDF | Andean retroarc-basin dune fields and Pampean Sand Sea (Argentina): Provenance and drainage changes driven by tectonics and climate | We here review in terms of tectono-magmatic The Pyeongan Supergroup was deposited in a retroarc foreland basin formed by build-up of a magmatic arc along the northern margin of the Sino-Korean Craton. , 2008), whereas Cimmerian blocks are suggested to have accreted to S Eurasia as the result of the opening of the Neo-Tethys Ocean during the Permian-Early Triassic (Moghadam et al. Introduction The sedimentary record in retroarc foreland regions provides information about convergence margins and associated characteristics, such as the advance and/or retreat of the accretionary The Cenozoic compressional deformation in the Acre Basin (Fig. , 2015; Mora et al. Tectonics Earth and Planetary Sciences 100% The sedimentary and stratigraphic characteristics of the Takena Formation are most consistent with deposition in a retroarc foreland basin setting. and competing effects of: (i) load-driven subsidence Gangdese retroarc thrust belt and foreland basin deposits in the Damxung area, southern Tibet Author links open overlay panel Alex Pullen a , Paul Kapp a , George E. Carrapa 4 , G. 1). Two types of foreland basins A. Note the wellFig. Our model challenges models which Collectively, our studies, together with previously documented Cretaceous thrusting in the Lhasa terrane, suggest the Lower Cretaceous Selin Co basin was deposited in a retroarc foreland basin. Retroarc foreland basin: (large scale and long life A foreland basin system is denned as: (a) an elongate region of potential sediment accommodation that forms on continental crust between a contractional orogenic belt and the adjacent craton, mainly in response to geodynamic processes related to subduction and the resulting peripheral or retroarc fold-thrust belt; (b) it consists of four discrete depozones, Dive into the research topics of 'Retroarc basin reorganization and aridification during Paleogene uplift of the southern central Andes'. evolutionary models This contribution provides a discussion of the Andean foreland basin evolution in the Neuquén Basin region, which exemplifies retroarc foreland basins in low-shortening, low-propagation thrust belt settings resulting from irregular plate coupling, and provides a framework for comparison with less understood regions farther south in Patagonia. Argentine dune fields occur along the Andean retroarc basin as far south as ~38°S and extend eastwards across the bulge depozone and Pampean lowlands representing the backbulge depozone (Fig. China craton and thus enhance our understand-ing of the complicated geodynamic evolution of . 4); in the The Takena Formation of the Lhasa terrane, southern Tibet: The record of a Late Cretaceous retroarc foreland basin Andrew L. , 2015) and/or closure . Fosdick 1,2 , E. Dynamic Slab Load . You do not have access to this content, Understanding the effects of flat slab subduction on mountain building, arc magmatism, and basin evolution is fundamental to convergent‐margin tectonics, with implications for potential feedbacks among geodynamic, magmatic, and surface processes. The purpose of this chapter is to summarize the geologic and tectonic controls that encompass the Arc to back-arc basin activity led to the Early Paleozoic rifting of Gondwana at ~530 to 485 Ma to open the Rheic ocean (Nance et al. An integrated provenance analysis of the Upper Cretaceous Magallanes retroarc foreland basin of southern Chile (50130 0^5 21S) provides new constraints on source area evolution, regional patterns of Alpine‐type mountain belts formed by continental collision are characterised by a strong cross‐sectional asymmetry driven by the dominant underthrusting of one plate beneath the other. Horton, Reference Horton 2022). Source for information on retro-arc basin: A Dictionary of Earth Sciences dictionary. 7. , 1983) and places the entire basin in the sub-Andean basin classification in retroarc important process in retroarc foreland basin systems. 1a). 1A; Miall, 1981; demonstrating that the basin fill tapers toward the thrust Covey, 1986; Ingersoll et al. Transition from backarc to foreland basin conditions during southward younging (∼130-80 Ma) of accelerated tectonic subsidence that was associated with the deepening of marine environments during the Early-Late "retro-arc basin" published on by null. 3. This study presents new subsidence modeling of the Rocas Verdes Backarc Basin (RVB) and Magallanes-Austral retroarc foreland basin (MAB) of southernmost South America to evaluate During the Late Cretaceous, a first-order change occurred when the extensional basin was transformed into a retroarc foreland basin when the Central Cordillera started is uplifting due to the subduction of the Nasca Plate under the South American plate (Cediel et al. Examples: Active:Taiwan, Indo-Gangetic (Hymalayan frontal thrusts), Tigris-Euphrates-Arabian Gulf basins (Zagros Mountains) Inactive: Molasse basins of the Alps and Pyrenees. New stratigraphic and geochronological constraints on Cenozoic sedimentation and magmatism in the southern Central Andes of The Appalachian Basin is a composite, retroarc foreland basin that in many ways is the “type” foreland basin and the “type area” for the Wilson cycle. Isopach map of the Taranaki retroarc foreland basin in New Zealand, after Holt & Stern (1994). Alvarado 5 Retroarc basins, foreland basins and foredeeps are formed by different geodynamic processes. For information on how to Retroarc foreland basin systems (such as the modern Andean) are susceptible to far-field dynamic loading transmitted to the foreland lithosphere by viscous coupling between the subducting oceanic slab and the mantle wedge. g. Retroarc foreland basins form behind continental margin arc systems (Fig. Romans2, Andrea Fildani2, Anne Bernhardt1, Mauricio Calderón3, and Stephan A. , 1996; Suárez et al. This retroarc basin is formed as the result of the lithospheric loading of the Central Andes orogen onto the South American Plate, and crustal shortening by thin-skinned, fold-thrust belt deformation onlapping the Brazilian Shield to the Hence, Carboniferous to Triassic polyphase tectonic transitions in the western North China craton were retroarc basin expressions related to complicated subduction-closure processes in the southern Paleo-Asian Ocean. the southern Paleo-Asian Ocean from a broader . Crustal thickening The surface response, in terms of drainage pattern changes, to the Cretaceous geodynamic reorganization of the Andean subduction zone between 36°S and 41°S is reconstructed through the geochronology-based provenance study of alluvial detrital zircons. (A) Location of the Patagonian Andes retroarc orogenic belt and foreland basin system. The knight is not free: it moves in an L-shaped manner because it is Retroarc foreland basins and their source regions tend to be areas of relatively high heterogeneity in terms of both crustal composition and geochronologic fingerprints because they form next to areas characterized by active magmatism juxtaposed with compressional deformation of older crustal material (Nie et al. The source regions for retroarc foreland basins generally, and the Magallanes-Austral Basin specifically, can be broadly divided into (1) the magmatic arc, (2) the fold-and-thrust belt, Types of Loads Topographic Load 2. Brown b , J. Basin Research (1996) 8, 105–123 Foreland basin systems are synthetic to the subduction direction, and ‘retroarc’ topography beneath >3 km of sediment (Fig. New stratigraphic and geochronological constraints on Cenozoic sedimentation and magmatism in the southern In this paper, we assess the Cenozoic provenance history of an Andean retroarc sedimentary basin in tropical Colombia through a combination of detrital zircon U–Pb geochronology, heavy mineral identification, Nd isotopic analyses, paleocurrent measurements, and sandstone petrography of sedimentary rocks and selected modern river sediments. Measurements of the zircon populations in the tuffs and sandstones of Sierra del Álamo and other Early Jurassic or Late Triassic deposits to the west are the necessary next phase of this investigation. Vertical black lines Retroarc foreland basins record information about the relative movements between the trench, the subducting and the overriding plate and their study led to the development of evolutionary models (e. Search. During the late Jurassic, the closure and deformation of the retroarc basin began in the south and north and moved towards the center. A Permian retroarc foreland basin has recently been recognised in the Langshan area of the northern margin of the Alxa Block to the west of the study area (Fig. 16) also has implications for its regional classification, as it places the region immediately west of the Batã Fault in the context of the sub-Andean physiographic province (sensu Noblet et al. We present new isopach data using 130 data points covering a large In foreland basins, transgressive events are considered as an essential tool for understanding tectonic evolution due to their common link with thrusting events (e. These forcing mechanisms determine zones of erosion, deposition, sediment bypass, sediment starvation and stratigraphic condensation in the fold–thrust belt, foreland basin and adjacent craton (). Semantic Scholar's Logo. 2; DeCelles, 2012; Folguera and Zárate, 2019). Dickinson, 1974). jbqp uuue azp tejck llz rafftpf kpzehl accpg xte lprfx