Double saloon door tectonics: two examples in South and Central America: the Caribbean and the Bolivian orocline

Martin, K.

doi:10.3997/2214-4609.202086011

Cited by 1 publication

(4 citation statements)

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“…Compilation of graben faults and main basins in Sumatra, Java (Martin, 2020, after Atkinson et al, 2006Bishop, 2000Bishop, , 2001Doust & Noble, 2008;Noble et al, 1997;Pubellier & Morley, 2014) Zahirovic, Matthews, et al, 2016) and to basinal areas in Java (Widianto, 2017). It is also clear from these maps that arcparallel features are offset by well delineated anomalies up to 30-50 mgal running perpendicular to the arc.…”

Section: Calabrian Arc Italymentioning

confidence: 76%

“…A compilation of mapped sub-zones (Martin, 2020) of the southern Andaman Sea, Malacca Strait, Sea of Java, and Makassar Strait (Atkinson et al, 2006;Bishop, 2000Bishop, , 2001Doust & Noble, 2008;Noble et al, 1997;Pubellier & Morley, 2014;Widianto, 2017) shows an unexpected distribution of faults (Figure 7). Many graben…”

Section: Calabrian Arc Italymentioning

confidence: 99%

“…To illustrate the potential effect that arc segmentation may have on sediment distribution in foreland and backarc basins, two scenarios are chosen. The first is an underfilled retro-arc foreland basin (Figure 14) with significant sediment input from drainage F I G U R E 1 3 Tectono-stratigraphic summary of Sumatra/Java basins, expressed in a hypothetical half-graben (Martin, 2020, after Atkinson et al, 2006Bishop, 2000Bishop, , 2001Doust & Noble, 2008;Noble et al, 1997;Pubellier & Morley, 2014;Widianto, 2017). [Colour figure can be viewed at wileyonlinelibrary.com] systems originating in the craton (e.g.…”

Section: Underfilled Fluvio-lacustrine To Marine Foreland Basinmentioning

confidence: 99%

“…Striking metaphors have been invoked: 'keyboard' (Lobkovsky et al, 1991), 'comb graben' (Doglioni, 1991) and 'hot fingers' (Tamura et al, 2002). Segmentation also affects continental arcs such as Sumatra and Java (Bishop, 2000(Bishop, , 2001Martin, 2020;McCaffrey, 2009). Deflection of slip vectors in interplate thrust earthquakes (McCaffrey, 1996) creates arc-parallel extension strain both in island arcs (e.g.…”

Section: Introductionmentioning

confidence: 99%

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Continental and island arc segmentation: Implications for retro‐arc and pro‐arc foreland basin and backarc basin geometries and sediment distributions

Martin¹

2023

Terra Nova

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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. Segmentation occurs in both continental and island arcs (Aleutians, Calabria, Japan, Kuril/Kamchatka, Lesser Antilles, Solomon Islands and Sumatra/Java). Some segments have variable gravity anomalies and elastic thicknesses (Te). In standard theory, the load created by an orogenic belt/magmatic arc depresses the lithosphere modelled as a thin elastic plate floating on a fluid mantle substrate, leading to an arc‐perpendicular foredeep, forebulge and backbulge. Arc‐parallel topographic and gravitational features should influence loading along strike in a similar way, resulting in a checkerboard pattern of foredeeps, forebulges and backbulges in both pro‐arc and retro‐arc foreland basins. This pattern exercises profound controls on sediment and facies distribution in a here‐to‐fore un‐envisaged manner, with implications for resource exploration in foreland basins.

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