Effective elastic thickness of the northern Australian continental lithosphere subducting beneath the Banda orogen (Indonesia): inelastic failure at the start of continental subduction

Tandon, Kush; Lorenzo, Juan M.; O'Brien, Geoffrey

doi:10.1016/s0040-1951(00)00187-6

Cited by 24 publications

(8 citation statements)

References 59 publications

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“…[] for the Apennines; Cardozo and Jordan [], for the Bermejo foreland basin in Argentina; Tandon et al . [] for the Timor Sea). Spatial variation in the amount of effective elastic thickness has several probable causes: (1) the occurrence of inherited rheological heterogeneities in the basement.…”

Section: Discussion: the Role Of Slab Bendingmentioning

confidence: 99%

Slab bending, syn‐subduction normal faulting, and out‐of‐sequence thrusting in the Central Apennines

2014

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In the Central Apennines, a Tertiary-Present eastward-vergent fold and thrust belt, thrusting mainly occurred in-sequence, cutting across a Mesozoic to Early Neogene succession, deposited in rifted (Early Jurassic) to passive continental margin, to foredeep (late Miocene) conditions. However, the Simbruini Mts were characterized by the occurrence of regional out-of-sequence thrusts (the Vallepietra-Filettino-Monte Ortara thrust fault) and ofTertiary prethrusting normal faults, associated with the deposition of thick breccia deposits (Brecce della Renga, Tortonian-early Messinian). A direct link between these two features is here proposed. Evidence for a prethrusting normal faulting origin for the Brecce della Renga is amply discussed. Although evidence for subduction-related normal faulting is growing in the Apennines literature, nowhere in the region are known extensional systems so vast and their syn-tectonic deposits so thick as in the Simbruini area. We propose that the Simbruini prethrusting normal faults were subduction related, i.e., they developed in the foreland due to anomalous bending of the lithosphere subducting in Late Tertiary time under the Apennines in the Simbruini Mts area. The associated breccia deposits were subsequently deformed during the development of the Simbruini Mts thrust front. We speculate that the prethrusting normal faults allowed the penetration of fluids within the subducting crust and possibly also in the mantle, weakening this part of the subducting plate. As a consequence, the weaker plate was anomalously down-bent, leading to a subcritical state of the Apennines wedge. The regional scale out-of-sequence thrust faults developed in order to bring the Apennines wedge back to the critical state.

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Section: Discussion: the Role Of Slab Bendingmentioning

confidence: 99%

Slab bending, syn‐subduction normal faulting, and out‐of‐sequence thrusting in the Central Apennines

2014

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“…The shelf-margin-wide Late Miocene-Early Pliocene sedimentary hiatus suggests global emersion, which cannot be explained by local strike-slip tectonics. The uplift event that occurred at the shelf-edge during this period may be attributed to flexure and bending of the northern edge of the Australian plate in response to the northward collision and tectonic load(Shuster et al 1998;Tandon et al 2000;Harrowfield et al 2003;Londoñ o & Lorenzo 2004;Langhi et al 2011). However, the geometry and structural style of faulting in the Neogene of the shelf-edge area also reflects both observed and predicted left-lateral strike-slip systems in the region.…”

mentioning

confidence: 87%

Tectonic evolution of the northern Bonaparte Basin: impact on continental shelf architecture and sediment distribution during the Pleistocene

Bourget

Ainsworth

Backé

et al. 2012

Australian Journal of Earth Sciences

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“…Debate continues about the significance of the trough (e.g. Fitch, 1970AudleyCharles and Milsom, 1974;Fitch and Hamilton, 1974;Hamilton, 1979;Audley-Charles, 1986bHarris, 1991;Lorenzo et al, 1998;Tandon et al, 2000;Spakman and Hall, 2010) and the timing of collision (e.g. Audley-Charles, 1986aHall and Wilson, 2000;Keep et al, 2003;Harris et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Neogene development of the Savu Forearc Basin, Indonesia

Rigg

Hall

2012

Marine and Petroleum Geology

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Effective elastic thickness of the northern Australian continental lithosphere subducting beneath the Banda orogen (Indonesia): inelastic failure at the start of continental subduction

Cited by 24 publications

References 59 publications

Slab bending, syn‐subduction normal faulting, and out‐of‐sequence thrusting in the Central Apennines

Slab bending, syn‐subduction normal faulting, and out‐of‐sequence thrusting in the Central Apennines

Tectonic evolution of the northern Bonaparte Basin: impact on continental shelf architecture and sediment distribution during the Pleistocene

Neogene development of the Savu Forearc Basin, Indonesia

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