Webback-arc basin, submarine basin that forms behind an island arc. Such basins are typically found along the western margin of the Pacific Ocean near the convergence of two … WebJun 5, 2024 · The Kumano forearc basin has been cited to have formed due to wedge stabilization caused by rapid hinterland sedimentation [Simpson, 2010; Moore et al., 2015; Ramirez et al., 2015]. Figure 14 shows a reconstruction of the evolution of the Kumano forearc basin and the adjacent accretionary wedge interpreted from observed …
Back-arc basin - Wikipedia
WebApr 11, 2024 · The Early Jurassic (200–180 Ma) intra-oceanic subduction formed the fore-arc basin, probably accompanied by asthenospheric mantle activity at the same time, followed closely by flat subduction due to the oceanic plateau. After a period of geological stabilization, the Late Jurassic (170–150 Ma) was the period when the spreading of the ... WebJun 1, 2024 · Abstract. Based on structural deformation analysis in the oblique Sumatra subduction system, we review uplift mechanisms of the forearc high and formation of the forearc basin. The development of the forearc high has been attributed to the flexural uplift, basin inversion, uplift of older accretion wedge, and backthrust in the landward margin ... mms safety bali
Project SUMATRA: The forearc basin system of Sumatra
Between the accretionary wedge and the volcanic arc a forearc basin, sometimes referred to as an outer arc trough, may be present and can accumulate thick deposits of sediment. Due to tectonic stresses as one tectonic plate rides over another, forearc regions are sources for great thrust earthquakes. … See more Forearc is a plate tectonic term referring to a region between an oceanic trench, also known as a subduction zone, and the associated volcanic arc. Forearc regions are present along a convergent margins and eponymously … See more During subduction, an oceanic plate is thrust below another tectonic plate, which may be oceanic or continental. Water and other volatiles in … See more There are two models which characterize a forearc basin formation and deformation and are dependent on sediment deposition and subsidence … See more One good example is the Mariana forearc, where scientists have done extensive research. In this setting there is an erosive margin and forearc slope which consists of 2 km high and 30 … See more The forearc region includes any forearc basin, outer-arc high, accretionary prism and the trench itself. The accretionary prism is located at … See more The intense interaction between the overriding and underthrusting plates in the forearc regions have shown to evolve strong coupling mechanisms which result in megathrust … See more • Back-arc region See more WebDec 1, 2012 · Farther north in the Tongan forearc, true low-Ca boninitic rocks and associated backarc basin–type basalts of probable Eocene age have been dredged at depths in excess of 4 km (Falloon et al., 1987) and have yielded ages between 45 and 35 Ma (Bloomer et al., 1998). It is not clear whether or not these boninitic lavas were … WebPhD Thesis Title: Tecto-Sedimentary evolution of the San Pedro Basin (Dominican Republic). ... -Tectono-sedimentary interpretation of turbidite fan systems sequences and fore-arc basin fillings. initiate sync in onedrive