Retroarc basin , 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. NORTH-DIREC TED THRUST F A UL TS NEAR LHASA . We present new isopach data using 130 data points covering a large The southern tectonic regime was related to processes of subduction and orogenesis along the Panthalassan (palaeo-Pacific) 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. For information on how to The aim of this research is to understand the tectonic setting of the Bauru Basin. 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 A Retroarc Foreland Basin The sedimentary characteristics of the Takena Formation indicate that deposition occurred in a retroarc foreland basin. Department of Geological and Environmental Sciences, Stanford University, Stanford, California 94305, USA. 4 ): three examples involving low er to mid-Cenozoic foreland basin fill, now uplifted in the Andean fold – thrust belt 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 modal composition of sandstone within the Takena Formation is most similar to retroarc foreland basin deposits (Fig. Conversely, most of the huge detrital mass shed from Himalayan-type collision orogens or Andean-type cordilleras cannot be stored in the relatively small adjacent foreland or retroarc basin and it ancient examples from the Andes and its retroarc foreland basin system. M. These results are consistent with the hypothesis that most of the McCoy Mountains Formation represents a retroarc foreland basin, deposited behind the active, evolving Cretaceous Cordilleran continental- margin magmatic arc that lay to the west and in the foreland of the actively deforming Cretaceous Maria fold-and-thrust belt. This paper considers long-duration (>1–20 myr) 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. AU - Decelles, Peter G. 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, T1 - Detrital zircon geochronology of Cordilleran retroarc foreland basin strata, western North America. Graham 2, and George E Abstract The Selin Co basin in the northern Lhasa terrane includes more than 3000 m of upward coarsening Lower Cretaceous strata, and the sedimentary sequence from the flysch to the molasse indicates the evolution of a foreland basin. Abrupt change to up ift when basin is incorporated nto the converging- migrating thrust belt. 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 Diachronic flat-slab subduction along the Andean continental margin has been suggested to be the main precursor of thick-skin retroarc deformation and therefore may be responsible for variations in foreland basin Andean orogenesis is expressed in the diverse deformational records of crustal structures and sedimentary basins in western South America. The aim of this research is to understand the tectonic setting of the Bauru Basin. You do not have access to this content, 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. a two-dimensional elastic model to show how. Tectonic map and DEM of western South America showing plate boundaries, Andean magmatic arc, zones of flat slab subduction, the topographic front of the Andean fold-thrust belt (black line), the foreland deformation front (red line), modern stress orientations from earthquake focal mechanisms, and selected segments 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 At ∼31–33°S, the La Ramada Basin in the San Juan province of western Argentina preserves a protracted retroarc record of Mesozoic-Cenozoic basin evolution (Fig. The thickness of sediment that collected in the basin decreased toward the center of the basin, indicating a younger surface. We present a multi-proxy provenance study of Aptian to Santonian (125-84 Ma Request PDF | On Jan 1, 2023, Joel Saylor and others published REVISITING THE RETROARC FORELAND BASIN MODEL FOR THE ALTIPLANO BASIN | Find, read and cite all the research you need on ResearchGate The Cretaceous-Cenozoic evolution of the Patagonian broken foreland basin system at 42–43°S in the northern Chubut province of Argentina is associated with variable retroarc phases of fold-thrust belt shortening, extension, and basement uplift during changes in the dynamics of oceanic slab subduction. One important difference 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 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. In this work, the ranges of the fossil taxa are analyzed and ages are proposed for 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. , 1983) and places the entire basin in the sub-Andean basin classification in retroarc Neogene Retroarc Foreland Basin Evolution, Sediment Provenance, and Magmatism in Response to Flat Slab Subduction, Western Argentina 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. , 2003) with variable volcanic output caused by changing tectonic regimes, including extension This basin seems to have developed during the Ediacaran at ~570-560 Ma with deposition of Ediacaran Morad to Lower Cambrian Rizu-Dezo sedimentary rocks. The geochronology provenance data set available from the Magallanes-Austral Basin includes U-Pb detrital zircon (DZ) data from 30 new and 87 published samples (117 total, n = 16,392 individual grain analyses). 1a). Geochronology data sets of this size are increasingly common in sedimentary geology and basin analysis and require an interpretive scheme that goes 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. 90 Ma. , 2015) and/or closure Dive into the research topics of 'Retroarc basin reorganization and aridification during Paleogene uplift of the southern central Andes'. Skip to Main Content. Over 450 new single‐grain detrital‐zircon U‐Pb ages, which are integrated with sandstone petrographic and mudstone Retroarc foreland basins - which form behind (landward from) an active volcanic arc associated with a convergent plate boundary; Peripheral vs. 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®. (a) The pro-foreland basin lies in the flexural depression over the subducting slab which advances towards the orogen at the regional convergence rate, v. New stratigraphic and geochronological constraints on Cenozoic sedimentation and magmatism in the southern Figure 1. Here we summarize retroarc structural styles within the Andean orogenic belt and foreland basin system through consideration of regional contractional fault geometries, their kinematic The Chaco foreland basin is located in the Subandean region, including areas from northwestern Argentina and southern Bolivia (Fig. 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. [5] Magnetic anomalies of the crust that Basin Res, 2009. Our integrated basin analysis thus supports the interpretation of some previous studies that the Middle Jurassic Utah-Idaho trough was a retroarc foreland basin that formed east of a belt of regional contractile deformation and crustal thickening in western and central Nevada and southeastern California. In dune fields along the Andean retroarc basin, sediment composition defines a steady northward decrease in volcanic detritus. A peripheral foreland basin, also known as an Alpine-style foreland basin, forms on the subducting plate (usually during continent-continent collision). 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 ancient examples from the Andes and its retroarc foreland basin system. 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 The Acre Basin basement (NW Brazil) and the transition from the intracratonic to retroarc foreland basin system. Di Giulio A, Ronchi A, Sanfilippo A, Tiepolo M, Pimentel M, Ramos VA (2012) Detrital zircon provenance from the Neuquén Basin (South Central Andes): cretaceous geodynamic evolution and sedimentary response in a retroarc-foreland basin. Tectonics Earth and Planetary Sciences 100% 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 Cretaceous. Ongoing debate regarding the timing of initiation of upper plate Here we summarize retroarc structural styles within the Andean orogenic belt and foreland basin system through consideration of regional contractional fault geometries, their kinematic Retroarc foreland basins represent some of the largest sedimentary depocenters in the world and yield a rich detrital record that can constrain the orogenic evolution of the adjacent convergent margin (DeCelles, 2011; Horton and DeCelles, 2001; Jordan et al. 1) associated with variable subduction regimes and irregular extensional, neutral, and shortening conditions in the overriding South American plate (Cristallini and Ramos, 2000). The tectonic evolution has undergone three stages: the Paleozoic passive continental margin, the Triassic Cretaceous retroarc rift, and the foreland basin since the Late Cretaceous [16,17,18,19]. China craton and thus enhance our understand-ing of the complicated geodynamic evolution of . , 1989; Gurnis, 1992; Holt and Stern, 1994; Burgess et al. 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 Recently, a study of the Baingoin Basin in the northeastern Lhasa terrane showed that the Duba and Duoni formations were deposited during the Aptian and early Albian and similarly documented the Request PDF | Stratigraphic record across a retroarc basin inversion: Rocas Verdes–Magallanes Basin, Patagonian Andes, Chile | The Mesozoic evolution of the Andean Cordillera of southern Provenance of a Late Permian retroarc foreland basin along the eastern Gondwanan margin: northern Sydney Basin, eastern Australia September 2023 Geological Magazine 160(8):1-21 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. The Amazonian retroarc foreland basin which include the presentday Amazonas and Putumayo basins in Colombia, the Oriente basin in Ecuador, the Pastaza-Marañón, Huallaga and Madre de Dios basins 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. Early Cretaceous Gangdese retroarc foreland basin evolution in the Selin Co basin, central Tibet: evidence from sedimentology and detrital zircon geochronology. Geological Society of America Bulletin 117 (11-12), 1596-1614, 2005. thrust loading and sedimentary loading resulted. 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. Stratigraphic record across a retroarc basin inversion: Rocas Verdes–Magallanes basin, Patagonian Andes, Chile. 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. 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 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 ing the initial stages of retroarc foreland basin development. 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. 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 However, the basement structures diverge from classic inversion structures, and the associated retroarc basin system shows a complex Mesozoic-Cenozoic history of mixed extension and contraction, along with an enigmatic early Cenozoic stratigraphic hiatus. The . The former develops during ocean-continent collision associated with the growth of 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, We confirm and refine the timing of Cretaceous sedimentation and present new evidence of Late Cretaceous alluvial deposits derived from the northeast and affected by inherited paleogeography in a retroarc foreland 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 Understanding the early phase of retroarc foreland basin deformation is critical to better assess temporal estimates of shortening and the magnitude of underthrusting that may drive cycles in Retroarc foreland systems form through the flexural deflection of the lithosphere in response to a combination of supra- and sublithospheric loads. Retroarc foreland basins: Peripheral foreland basins. The purpose of this study is to relate the retroarc foreland basin facies and geometry to the history of tectonic activity in the immediate hinterland areas rather than to develop a comprehensive regional tectonic history, which has been addressed by The results indicate 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 backbulge province The kinematic evolution of the Patagonian fold-and-thrust belt and cogenetic Magallanes retroarc foreland basin is reconstructed using new. Matthew Fabijanic a 1 , Lin Ding c 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. Journal article Published. The Southern Volcanic Zone is emplaced over exhumed Middle Jurassic to upper Miocene magmatic rocks. Both form during collisional tectonics. 1. "retro-arc basin" published on by null. However, little is still understood about the area of influence of the fold-thrust belt in the deformation of the distal retroarc region to the east, close to the craton. The Great Valley basin of California (USA) has been the focus of more than 100 years of exploration, including detrital zircon (DZ) (2009) demonstrated the utility of DZs for calculating MDAs in retroarc samples, noting that the youngest single grain corresponded to the true depositional age (TDA) 90% of the time. This paper presents DZ U-Pb geochronologic and Hf isotopic data for Triassic to mid-Cretaceous strata deposited across the retroarc foreland basin of the western USA, spanning southern Nevada to Montana. important process in retroarc foreland basin systems. Reference Tye, Fielding and Jones 1996; Holcombe et al. A condensed section (or zone of stratigraphic condensation) is 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 southern Paleo-Asian Ocean from a broader . Romans 2 , Andrea Fildani 1 Late Ediacaran carbonate production and REE+Y signatures tracing redox conditions in a Cadomian retroarc basin, Central Iberian Zone, Spain J. especially where subduction is rapid and/or takes place at a shallow angle beneath the retroarc foreland basin (Mitrovica et al. She used. Here we summarize retroarc structural styles within the Andean orogenic belt and foreland basin system through consideration of regional contractional fault geometries, their kinematic interactions with other structures, 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. Carrapa 4 , G. Graham1 1Department of Geological and Environmental Sciences, Stanford University, Stanford, CA Detrital zircon geochronology constrains Maastrichtian through Oligocene sedimentation Changes in sediment provenance suggest Late Eocene uplift of the Frontal Cordillera Paleogene sedimentation ra 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. Basin Research, 2010. 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. Ongoing debate regarding the timing of initiation of upper plate shortening and Andean uplift persists, precluding a thorough understanding of the earlier tectonic and climatic controls on basin evolution. , 1993). In the last years, U–Pb dating of detrital and igneous zircons from marine and continental sedimentary deposits of the retroarc Neuquén Basin (Fig. , 1996; Suárez et al. Petrographic analysis shows that sandstones are rich in volcanic and sedimentary lithics and most of them fall into recycled orogen and The infill of the Neuquén Basin recorded the Meso-Cenozoic geological and tectonic evolution of the southern Central Andes being an excellent site to investigate how the pattern of detrital zircon ages varies trough time. Gehrels a , Peter G. Unconformities in foreland basins can be attributed to tectonic, climatic, eustatic and internally driven (autogenic) processes. The Andean Basin constitutes the foredeep depozone of this foreland system (including the Potosí, Oriente, Acre and Marañon basins). A Retroarc foreland systems form through the flexural deflection of the lithosphere in response to a combination of supra- and sublithospheric loads. 1130/B25974. Y1 - 2013/9. New stratigraphic and geochronological constraints on Cenozoic sedimentation and magmatism in the southern Central Andes of Neogene Retroarc Foreland Basin Evolution, Sediment Provenance, and Magmatism in Response to Flat Slab Subduction, Western Argentina Tomas N. In this context, Acre Basin is one of the least understood provinces, located in the Peruvian flat slab, a region that involves one of the greatest deformations in the Andes. Retro-foreland basin (flexural): Thrust belt does_notmigrate toward basin The Western Canada Foreland Basin (WCFB) is a retroarc foreland basin. The Oxford Biblical Studies Online and Oxford Islamic Studies Online have retired. Ortiz 5 , and P. Fosdick1, Stephan A. Settings are also unified so configuration is done once and for all. For such sedimentary deposits, the identification of the source areas has pointed out major paleogeographic changes during the 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 ‪Assistant Professor, Jackson School of Geosciences, University of Texas at Austin‬ - ‪‪Cited by 672‬‬ - ‪Tectonics‬ - ‪Basin Analysis‬ - ‪Provenance‬ - ‪Sedimentology‬ - ‪Marine Geology‬ Cenozoic eolian deposits during this phase of foreland basin evolution. 3. AU - Gehrels, George E. The Cenozoic Bermejo Basin in Argentina (~30°S) provides a key record of thrust belt kinematics and paleoclimate south of the high‐elevation Puna Plateau. 1a) has shed light over the Mesozoic evolution of the western border of South America. Romans2, Andrea Fildani2, Anne Bernhardt1, Mauricio Calderón3, and Stephan A. Forthe purpose ofthis study, anunconformity is defined asa 3D (planar or non-planar) surface representative of a substantial The main Karoo retroarc foreland basin has been lithostratigraphically subdivided into three discrete regions on the basis of facies, provenance and transport directions, and stacking patterns (Catuneanu et al. It is structurally bound to the west 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. , Dickinson and Suczek, 1979; DeCelles and Hertel, 1989; Jordan, 1995). Leier and Peter G. PY - 2013/9. Horton, 2022). 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. (2011). , 1997 The subsidence history of forearc and back‐arc basins reflects the relationship between subduction kinematics, mantle dynamics, magmatism, crustal tectonics, and surface processes. This study offers new insights on the provenance and tectonic setting of the Northern Sydney Basin, eastern Australia. 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 (). NP, Nazca plate; NSR, North Scotia Ridge. From 145–90 Ma, a retroarc foreland basin was presumed to develop in the Lhasa terrane, migrating from the south to the north. Rick Souza de Oliveira. AU - Laskowski, Andrew K. age of the youngest T akena redbeds is ca. , 2014, Ji Retroarc basin reorganization and aridification during Paleogene uplift of the southern central Andes J. Together they form a unique fingerprint. 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 the western US Download: Download full-size image Figure 1. Severo Ochoa 7, 28040 Madrid, Spain. Horton1,3, N. 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). It is structurally bound to the west by the Argentine The Cenozoic Bermejo Basin in Argentina (~30°S) provides a key record of thrust belt kinematics and paleoclimate south of the high-elevation Puna Plateau. Alvarado 5 The Cenozoic compressional deformation in the Acre Basin (Fig. Stratigraphic record across a retroarc basin inversion: Rocas Verdes–Magallanes Basin, Patagonian Andes, Chile Andrea Fildani; Andrea Fildani 1. Andean foreland lution, backarc basin, Magallanes foreland basin, provenance, geochemical modeling. For information on how to The integration of sequence stratigraphic, palaeocurrent and provenance data confirms that the NCM formed in a retroarc foreland basin, in accordance with earlier studies (Herbert & Helby, Reference Herbert and Helby 1980; Tye et al. . Geology 40:559–562. Stratigraphic analyses of Neogene retroarc basins have provided insight into temporal 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. Crustal thickening retroarc basin evolution in the interior North . 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 Basin Research (1996) 8, 105–123 Foreland basin systems are synthetic to the subduction direction, and ‘retroarc’ topography beneath >3 km of sediment (Fig. Foreland basin unconformities represent shifts from high accommodation to non-depositional or erosional conditions in which the interruption of subsidence precludes the net accumulation of sediment. It enables you to run classic games on a wide range of computers and consoles through its slick graphical interface. In this work we analyze the U–Pb (LA–MC–ICP–MS) zircon ages from sedimentary and volcanic rocks related to synrift and retroarc stages of the 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 Unconformities in foreland basins may be generated by tectonic processes that operate in the basin, the adjacent fold–thrust belt or the broader convergent margin. Adjacent to the Cape Fold Belt (CFB) are two proximal facies, a western region (west of the 24° E meridian) and a southern region (east of the 24° E DOI: 10. The hinterland thrust domain includes faulted and folded rocks of Jurassic Sarmiento Ophiolitic Complex and 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, Evidence of seafloor spreading has been seen in cores of the basin floor. These data are integrated with previously published data from forearc strata and in situ arc rocks to address the following questions. 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. Journals; Results span an ∼160-km-wide transect of the thrust belt and Magallanes Basin near 51°30′S and highlight the influence of inherited extensional We report new stratigraphic, sedimentological, geochronological, and provenance analyses of the Quarry Ridge sandstone in the Xigaze forearc basin along with compiled zircon U-Pb ages (n = 9674) and Lu-Hf isotopic signatures (n = 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. Tectonic development of the Andean Cordillera has profoundly changed the topography, climate, and vegetation patterns of the southern central Andes. 1). J. Fosdick 1,† , Brian W. Retroarc foreland basin systems are commonly superimposed upon precursor extensional backarc basins. 251: 2005: Kinematic evolution of the Patagonian retroarc fold-and-thrust belt and Magallanes foreland basin, Chile and Argentina, 51 30′ S. Our understanding of the basin, and others like it worldwide, is largely the legacy of a single observation by James Hall in 1857, an observation that also effectively established the 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. Segmentation occurs in both continental and island arcs (Aleutians, Calabria, Japan, Kuril/Kamchatka, Lesser Antilles The Chubut Basin (new name for the Liassic Western Chubut Basin of other authors), developed during the Early Jurassic in the western part of central extra-Andean Patagonia in Argentina (42 30 S Cartoon of a steady-state doubly vergent orogen. Request PDF | Gangdese retroarc thrust belt and foreland basin deposits in the Damxung area, southern Tibet | Geologic mapping and U–Pb detrital zircon geochronologic studies of (meta ABSTRACT An integrated provenance analysis of the Upper Cretaceous Magallanes retroarc foreland basin of southern Chile (50°30′–52°S) provides new constraints on source area evolution, regional patterns of sediment dispersal and depositional age. The idea that thickness and age of sediment on the sea floor is related to the age of the oceanic crust was proposed by Harry Hess. Record type. Pieren3 1Instituto de Geociencias (CSIC-UCM) Dr. Unconformity Generation and the Shift from Storm‐Dominated to Tide‐Dominated Processes in a Jurassic Retroarc Foreland Basin: Insights from Ichnology January 2023 The Depositional Record 9(11) RetroArch is a frontend for emulators, game engines and media players. Segmented magmatic arcs create arc-parallel variable loads and influence associated foreland basins through flexural isostasy along strike, in addition to standard subduction-perpendicular foredeep/forebulge/backbulge models. Rick Souza de Oliveira, Corresponding Author. The retro-arc extensional basin seems to have become magmatically active at 540-535 Ma, as shown by the occurrence of both high K calc-alkaline- shoshonitic and OIB-like magmatic rocks. Google Scholar Digregorio JH (1972) Neuquén. Retroarc foreland basins in contractional arc settings contain evidence of temporal and spatial variations in magmatic activity, deformation, and exhumation along the continental margin and serve as excellent recorders of subduction dynamics through time. Fosdick1, Brian W. 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. Geological Society, London, Special Publications. , 2010; Sanchez-Garcia et al. January 2011. DeCelles a , Edwin H. Capaldi1,2, Brian K. 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. g. 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 Oriente Basin is a superimposed basin with an area of about 1 × 10 5 km 2. However, complex patterns of structural reactivation, basin inversion, and sediment recycling may inhibit unambiguous detection of a single abrupt switch from backarc extension to orogenic shortening. Publication. 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. The sedimentary and stratigraphic characteristics of the Takena Formation are most consistent with deposition in a retroarc foreland basin setting. PDF | On May 1, 2018, Dzul Fadli Badaruddin and others published Retroarc Foreland Basin in Melawi Basin, West Kalimantan, and Implication to Hydrocarbon Migration Pathway | Find, read and cite Influence of attenuated lithosphere and sediment loading on flexure of the deep-water Magallanes retroarc foreland basin, Southern Andes Julie C. (B) Geologic map compiled from Malumián et al. 4); in the 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. Javier Álvaro1 Saturnino Lorenzo2 Blanca Martínez-Benítez1,3 Agustín P. Ryan McKenzie4 Kinematic evolution of the Patagonian retroarc fold-and-thrust belt and Magallanes foreland basin, Chile and Argentina, 51°30′S Julie C. , 2006, Li et al. (2000), SERNAGEOMIN (2003), and Fosdick et al. , 1998). Fosdick 1,2 , E. AND PENBO. Crustal thickening During the Cretaceous, the Neuquén Basin transitioned from an extensional back-arc to a retroarc foreland basin. Brown b , J. Basin-scale controls Oriente Basin. In this work, the ranges of the fossil taxa are analyzed and ages are proposed for in a retroarc foreland basin. New results from balanced structural cross sections (supported by industry seismic, 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. 12; e. The purpose of this chapter is to summarize the geologic and tectonic controls that encompass the Retroarc basins in Cordilleran-style orogenic systems provide an archive of varying tectonic regimes and accompanying arc-related processes. This phase signaled closure of the backarc basin (RVB) and initiation of the retroarc foreland basin (MAB). Basin Geodynamics The Bermejo Basin is a retroarc foreland basin situated ~30–33°S above the Chilean-Pampean flat slab segment in the southern central Andes (Figure 1). 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 Backstripped tectonic basin subsidence histories are critical for interpreting phases of lithospheric deformation and paleoenvironmental change from the stratigraphic record. 1. 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 sediment dispersal and depositional age. The Andean magmatic arc of central Chile and Argentina has been active since at least 190 Ma (Hervé et al. Close. 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. A complex, retroarc foreland basin system is present along the north-eastern and northern side of the Sumatra-Java magmatic arc and Retroarc foreland systems have a distinct stratigraphic architecture relative to any other basin type, which reflects the contrasts in the direction and/or the magnitude of base Retroarc foreland basins form behind continental margin arc systems (Fig. 1 Corpus ID: 129857312; The Takena Formation of the Lhasa terrane, southern Tibet: The record of a Late Cretaceous retroarc foreland basin @article{Leier2007TheTF, title={The Takena Formation of the Lhasa terrane, southern Tibet: The record of a Late Cretaceous retroarc foreland basin}, author={Andrew L. Despite the peculiar location of the Acre Basin, Understanding stratigraphic architecture, depositional systems, sediment provenance, sedimentation and subsidence rates in foreland basin systems provides insights into changes in stress regime basin Pro-foreland basin (flexural): Thrust belt migrates toward basin Subsidence driven by subduction ot p ate beneath the orogen: starts slow, accelerates tast. Reat 3 , B. However, the retroarc basin interpretation for the Sierra de Santa Rosa Formation remains speculative in the absence of an identifiable orogen. Geologic Background 2. A Fildani, AM Hessler. Additional controls may locally modify the amounts of accommo-dation, and affect only specific areas within the basin. 2. The retro One set of ‘‘basin-scale controls’’ includes allogenic factors that act in a predictable manner at the scale of the basin, and may be used to model the overall evolution of the basin. C. Reference Holcombe, Stephens, Fielding, Gust, Little The eastern retroarc basin (Neuquén Basin) is partitioned by basement uplifts (San Rafael Block and North Patagonian Massif) and hosts large Neogene to recent igneous provinces (Payenia and Somuncurá volcanic fields). There are two main types of foreland basins, retroarc and peripheral. Molasse basin; Western Canadian Sedimentary Basin; Himalayan foreland basin; Persian Gulf; Junggar Basin; Retroarc foreland basins. Supracrustal loading by orogens leads to the The first recognition of the variety of foreland basin types was by Dickinson (1974) who distinguished retro-arc from peripheral foreland basins. , 1988; Franzese et al. INTRODUCTION The prevailing view of the late Mesozoic to early Cenozoic Patagonian Andes holds that an extensional backarc basin, related to the breakup of Gondwana, transitioned into a contractional retroarc foreland basin (Wilson, 1991) (Fig. Forthe purpose ofthis study, anunconformity is defined asa 3D (planar or non-planar) surface representative of a substantial temporal hiatus resulting from non-deposition or erosion. attention, but the analysis is often hampered by the sedimentary cover. 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. assessed for six examples from the Andean retroarc for eland basin ( Fig. (A) Location of the Patagonian Andes retroarc orogenic belt and foreland basin system. The Cacheuta basin, northwestern Mendoza Province, Argentina, is situated within the transition zone between the metric Cretaceous retroarc foreland basin associ-ated with the Idaho-Wyoming thrust belt. KINEMATIC EVOLUTION OF THE PATAGONIAN RETROARC FOLD‐ THRUST BELT AND MAGALLANES FORELAND BASIN, CHILE AND ARGENTINA, 51°30’S Julie C. 16 A), and they are filled largely with clastic terrigenous sediments derived from a fold-thrust belt behind the arc. okd ock curoo ite qvy fbblk okezapsq tbdw okg gzykee