Multiple orientations and generations of faults from 3d coherency mapping g. Rearrange individual pages or entire files in the desired order. Trenchslope basin trench forearc basin intraarc basin backarc basin trenches. Drilling of sedimentary sequences down to the basin basement was recently carried out by deep sea. Geodynamics of late carboniferousearly permian forearc in. The basement is characterized by a central high or horst. Formation of forearc basins and their influence on subduction zone.
Analysis of normal fault populations in the kumano forearc basin, nankai trough, japan. Mud diapirs in the forearc basin are mobilized by rising fluids. Nature and distribution of slabderived fluids and mantle. Pdf recent observations of an association between forearc basins and slip during subduction thrust earthquakes suggest a link between processes. Subsidence isochrons indicate that oblique subduction of the european plate below the. Forearc basin evolution along accretionary convergent margins, wrangell mountains, alaska. The malekula reentrant lies just south of the partly subducted bougainville seamount. The basin contains 4 km of middle jurassic to late cretaceous sedimentary strata, and is part of a series. Unmetamorphosed sedimentary melange with highpressure metamorphic blocks in a nascent forearc basin setting brian hitz, john wakabayashi. Hawkes bay forearc basin eastern north island, new.
Surya nugraha robert hall abstract cenozoic subduction of the indoaustralian plate beneath java began in the middle eocene. Tectonic and depositional history of an active forearc. The andamannicobar forearc basin contains 3 to 5 km of sediment fill of cenozoic age. Oct 25, 2019 resolving the architecture and early evolution of a forearc basin georgia basin, canada using detrital zircon. Depending on how much the pdf is damaged we will be able to recover it partially or completely. A foreland basin is a structural basin that develops adjacent and parallel to a mountain belt. If a 10% lherzolite component containing 10% spinel is assumed, the maximum depth in this model would increase by 30 m on the southern side of the forearc basin. Tectonic and depositional history of an active forearc basin. Forearc regions are found at convergent margins, and include any accretionary wedge and forearc basin that may be present. Importance of structural history integration on 1 and 2d basin and petroleum system models in hawke bay, north island, new zealand november 28th, 2012 blair burgreen, steve graham, and kris meisling the 5th. The palaeogene forearc basin of the eastern alps and. Variation in forearc basin development along the sunda arc. Launch the software, enter in your search term into the.
Department of earth and environmental sciences, california state university, fresno, 2576 e. The structure and age of crystallization of the metamorphic rocks are characterized by 40ar39ar radiometric dating. The active subduction thrust is located along the base of the model, extending from the trench landward. The tectonostratigraphic evolution of the basin varies considerably alongstrike and is divided into five general stages from late cretaceous to recent. Pazzaglia and brandon, 2001, which would mean that it would take 2.
Hagiiagi luncheon talk, 21 february 2008 potensi giant. Abstractthe present forearc basin configuration along the sunda arc initially appears to have been. Importance of structural history integration on 1 and 2d basin and petroleum system models in hawke bay, north island, new zealand november 28th, 2012 blair burgreen, steve graham, and kris meisling the 5th annual bpsm industrial affiliates meeting stanford, ca. This proximity, as well as the similarity in morphology between the reentrant and an indentation in the lower arc slope. The east java forearc preserves a record of cenozoic sedimentation and tectonic history, and information about the character of the deeper crust. Resolving the architecture and early evolution of a. Calcareous nannofossil biostratigraphic study of forearc basin sediments. Basins associated with subduction processes prepared by dr. Seismic stratigraphic analysis calibrated with available well and core data was carried out to understand the spatialtemporal evolution of cenozoic depositional systems in the basin. Sediment flow routing during formation of forearc basins. Preservation of forearc basins during island arccontinent.
Click here to download supplemental file g38051figdr14. Forearc basin deformation in the andamannicobar segment of the. A forearc is the region between an oceanic trench and the associated volcanic arc. Forearc growth is due to oceanic underplating and recycling within the outer arc high. Click, drag, and drop to reorder files or press delete to remove any content you dont want. You can merge pdfs or a mix of pdf documents and other files. North of the delta offstream storage investigation draft 18 deposits consist of several to ten feet of clay, silt, and sand overlying a basal layer of coarser alluvium containing sand, gravel, cobbles, and boulders. Farther landward, the surface rises again, reaching a maximum at the forearc high. Producing formations, ranging in age from pennsylvanian to oligocene, are mainly upper cretaceous through oligocene sandstones of. New upb age data presented here indicate igneous zircons are less than 162 ma with a cluster of ages at 83 ma and 35 ma.
Consequences of continental subduction on forearc basin. The volcanic rocks of the nearby island arc do differ from those in the basin. Structure across nias island as part of our geological studies of the sumatran forearc a mapping programme was carried out over all areas ofnias. Subsidence isochrons indicate that oblique subduction of the european plate below the adriatic plate was responsible for forearc. Pdf formation of forearc basins and their influence on subduction. Kumano basin geology and seismic evidence of gas hydrates the kumano basin is the largest forearc basin in the nankai trough and lies at about 2000 m water depth. Download and install the software on your computer. Foreland basins form because the immense mass created by crustal thickening associated with the evolution of a mountain belt causes the lithosphere to bend, by a process known as lithospheric flexure. Basin formation in the nias area of the sumatra forearc. The second model suggests that the forearc region could be. How to search for text inside multiple pdf files at once. How to merge pdfs and combine pdf files adobe acrobat dc.
Click add files and select the files you want to include in your pdf. Ranges ncr, ccr, scr and klamath mountains km are the inner forearc high and lie between a marine forearc basin buried by sediment on the shelf to the west and a terrestrial forearc basin the willamette valley, wv to the east. Repair pdf file upload a corrupt pdf and we will try to fix it. Condie, in earth as an evolving planetary system third edition, 2016. Pdf the stratigraphic succession of a forearc basin provides crucial information on the history of a convergent plate margin. The width and depth of the foreland basin is determined by the flexural rigidity of the underlying. The dashed white line delineates the outer forearc high mcneill et al. The palaeogene forearc basin of the eastern alps and western. Resolving the architecture and early evolution of a forearc basin georgia basin, canada using detrital zircon. The results of this study provide important clues to further our understanding of dynamic interactions between forearc basins and subduction zone processes. Basin formation in the nias area of the sumatra forearc, western indonesia 287 moore, the seismic stratigraphy of the northern sumatra forearc had been discussed by beaudry and moore 1985, who recognised three main neogene sequences which they assigned to the pleistocene unit 4, the pliocene and uppermost. Pdf forearc basins are one of the fundamental sedimentary basins, and they preserve various geological phenomena arising from dynamic interactions. The sechura desert of northwestern peru is typical of the hyperarid conditions that exist along. Hawkes bay province lies within an extensive forearc basin in eastern north island, new zealand, that developed during the late miocene to present.
Gr focus rise and fall of the eastern great indonesian arc. Insights from analogue modeling jacques malavieille. Pdf the birth of the xigaze forearc basin in southern tibet. Abstract the lower nanaimo group was deposited in the forearc.
Northward migration of the cascadia forearc in the. Although the basin owes its existence and structural. Sediment is delivered into the basin via a submarine turbidite system. Shaded relief bathymetry of the daisy bank fault and vicinity, central oregon continental slope and abyssal plain. Splay faults and tilted piggyback basins show tsunami hazard. Hydrocarbon potential of forearc basins in asia, by. The forearc is the region between the subduction zone and the volcanic chain volcanic arc. The kumano basin, located along the nankai margin, southwest japan fig. Analysis of the central hawkes bay sector of the late. Pdf evolution of tectonosedimentary systems in the. Sedimentary deposits in the distal kumano forearc basin of the nankai accretionary margin off kii peninsula, japan, have been imaged using threedimensional 3d seismic data. Though the magnetic anomalies are more complex to decipher the rocks sampled from backarc basin spreading centers do not differ very much from those at midocean ridges. The forearc basin model is adhered to herein, largely because. Resolving the architecture and early evolution of a forearc.
Dr3 and video dr2 in data repository for additional details. The development of the basin is controlled by the interaction between the nazcafarallon and south american plates, together with nazca ridge subduction. Structural complexity in the boundary of forearc basin neliti. Due to tectonic stresses as one tectonic plate rides over another, forearc regions are sources for great thrust earthquakes. Earthquake rupture would be expected along the thrust where temperatures are low enough for seismogenic failure to occur. In most subduction zones, formation of backarc basin bab and arc magmas depletes the mantle source toward the trench, resulting in more depleted mantle beneath the forearc. Formation of forearc basins by collision between seamounts. Forearc basin evolution along accretionary convergent. S, based on identification and mapping of several lithostructural associations of basal and frontal accretion metamorphic rocks and volcanosedimentary successions of the forearc basin. In the simeulue forearc basin indications of a working petroleum system e. Stratigraphy, biostratigraphy, chronology, geological maps and paleogeography. In contrast, eastern, arcward parts of the basin display subsidence histories suggestive of thermal contraction and compatible with continentward migration of sierran arc magmatism in the late cretaceous. Complex strain partitioning in this margin is characterized by sliver faults that crossing boundaries between the backarc basin, volcanic arc, forearc basin, and. The paleocene talara forearc basin is superimposed on a larger, mesozoic and premesozoic basin.
The geological column shows eastwarddeepening facies trend after takashima et al. Structure, evolution and tectonic activity of the eastern. Of particular interest are the tectonic and sedimentary interactions between the accretionary wedge and forearc basin and the influence of tectonics and eustatic sealevel fluctuations on sedimentation. The lombok forearc basin located between the outer arc high and the volcanic island arc is up to 120 km wide with up to 4500 m of sediment thickness and water depth of about 4000 m fig. C g h d in the kumano forearc basin, nankai trough, japan. The effects of rock uplift and rock resistance on river. The basin contains 4 km of middle jurassic to late cretaceous sedimentary strata, and is part of a series of subbasins that define the southern alaska forearc. Jul 20, 2011 research highlights the eastern sunda forearc is imaged by new multichannel seismic reflection profiling. Satyana hagiiagi luncheon talk, 21 february 2008 potensi giant field di pantai barat sumatraaceh. Nias island, indonesia 103 deformation, which began in the pliocene, continues up to the present day. Investigations of a deformed late miocene unconformity lisa c. Types, geometries, and relationships to subduction zone dynamics article pdf available in geological society of america bulletin 12856. Discoveries of supergiant fields of west aceh offshore.
Extension, hydration, and melt invasion combine to further weaken challenger deep forearc lithosphere. Basins that may have formed by seamount collision lie within the accretionary wedge adjacent to the aleutian trenches. Seekfast also lets you easily search for your terms in various file types including pdf. Specifically, uplift in the forearc basin corresponds to the onset of the laramide orogeny and inferred low angles of subduction. Roughtextured areas in eastern part of image result from noisy data. The wrangell mountains basin is a mesozoic forearc basin that developed during a period of accretionary tectonics in the northwestern cordillera. Mcneill school of earth sciences, university of leeds. Forearc basin evolution along accretionary convergent margins. Bizarre news and why exploration history of sibolga forearc basin geomarine cruises of sumatraandaman waters geology of sibolga forearc basin. Oblique strikeslip faulting of the cascadia submarine. Structure and isochron maps were created for 16 sequences and used to identify structural and depositional trends within the sandino basin. Basin development and uplift at an obliqueslip convergent. In continental margin arcs, such as the sunda arc in indonesia, forearc basins range up to 700 km in strike length.
Highresolution 20250 hz multichannel seismic mcs reflection data with record lengths of 48 s twt, totaling approximately 4620 line km on the shelf and slope of the sandino forearc basin of offshore western nicaragua, were acquired in novemberdecember 2004 cruise ew0412 and subsequently processed at the university of texas institute. Once windows has finished indexing your pdfs and their contents, youll be able to search for text inside multiple pdf files at once use seekfast to search pdf files. Hawkes bay forearc basin eastern north island, new zealand. Seabeam data reveal two deep subcircular reentrants in the lower arc slope of the new hebrides island arc that may illustrate two stages in the development of a novel type of forearc basin. These processes could result in a roughly circular forearc basin. Basaltic volcaniclastics from the challenger deep forearc. An increase or decrease of the sediment flux may change the type, geometry, and deformation manner of the forearc basin. Ministry of business, innovation and employment, new zealand, unpublished petroleum report pr4883, 66 p. This belt may have grown by continued accretion at the toe of the wedge, by underplating beneath the reentrant, and by trapping of sediment shed from the island arc. Analysis of normal fault populations in the kumano forearc. Duplex formation at crustal scale is found at the upperlower plate interface. The xigaze forearc basin in southern tibet is one of the best. The seismic data, along with logging and core data from the integrated.