Nature and significance of the West Baram and Tinjar Lines, NW Borneo

Cullen, Andrew

doi:10.1016/j.marpetgeo.2013.11.010

Cited by 57 publications

(43 citation statements)

References 51 publications

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“…Cullen, 2010Cullen, , 2014Cullen et al, 2010;Hall, 1996Hall, , 2002Rangin et al, 1999;Replumaz and Tapponnier, 2003;Replumaz et al, 2004). Tang and Zheng (2013) interpreted regional surface wave tomography to show a Proto-South China Sea slab of 500 km length in the upper mantle beneath northern Borneo which is longer than estimated by Rangin et al (1999) but smaller than interpreted by the Hall (1996Hall ( , 2002Hall ( , 2012 reconstructions.…”

Section: North Borneo-proto-south China Seamentioning

confidence: 95%

Mantle structure and tectonic history of SE Asia

2015

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Section: North Borneo-proto-south China Seamentioning

confidence: 95%

Mantle structure and tectonic history of SE Asia

2015

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“…The Middle Miocene to Modern BDP in the south‐west Baram‐Balabac Basin (Cullen, ), is bounded by four tectonic features (Figs B and A): (i) the West Baram Line, a major, long‐lived and basement‐linked tectonic discontinuity (Cullen, ), to the south‐west; (ii) the north‐eastern margin comprises a series of north–south trending faulted anticlines (Sabah Ridges; Bol & Van Hoorn, ) (e.g. Fig.…”

Section: Geological Settingmentioning

confidence: 99%

Coupled ‘storm‐flood’ depositional model: Application to the Miocene–Modern Baram Delta Province, north‐west Borneo

et al. 2017

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The Miocene to Modern Baram Delta Province is a highly efficient source to sink system that has accumulated 9 to 12 km of coastal-deltaic to shelf sediments over the past 15 Myr. Facies analysis based on ca 1 km of total vertical outcrop stratigraphy, combined with subsurface geology and sedimentary processes in the present-day Baram Delta Province, suggests a 'storm-flood' depositional model comprising two distinct periods: (i) fair-weather periods are dominated by alongshore sediment reworking and coastal sand accumulation; and (ii) monsoon-driven storm periods are characterized by increased wave-energy and offshore-directed downwelling storm flow that occur simultaneously with peak fluvial discharge caused by storm precipitation ('storm-floods'). The modern equivalent environment has the following characteristics: (i) humid-tropical monsoonal climate; (ii) narrow (ca <100 km) and steep (ca 1°), densely vegetated, coastal plain; (iii) deep tropical weathering of a mudstone-dominated hinterland; (iv) multiple independent, small to moderate-sized (10 2 to 10 5 km 2 ) drainage basins; (v) predominance of river-mouth bypassing; and (vi) supply-dominated shelf. The ancient, proximal part of this system (the onshore Belait Formation) is dominated by strongly cyclical sandier-upward successions (metre to decametre-scale) comprising (from bottom to top): (i) finely laminated mudstone with millimetre-scale silty laminae; (ii) heterolithic sandstone-mudstone alternations (centimetre to metre-scale); and (iii) sharp-based, swaley cross-stratified sandstone beds and bedsets (metre to decimetre-scale). Gutter casts (decimetre to metre-scale) are widespread, they are filled with swaley cross-stratified sandstone and their long axes are oriented perpendicular to the palaeoshoreline. The gutter casts and other associated waning-flow event beds suggest that erosion and deposition was controlled by high-energy, offshoredirected, oscillatory-dominated, sediment-laden combined flows within a shoreface to delta front setting. The presence of multiple river mouths and exceptionally high rates of accommodation creation (characteristic of the Neogene to Recent Baram Delta Province; up to 3000 m Ma À1 ), in a 'stormflood'-dominated environment, resulted in a highly efficient and effective offshore-directed sediment transport system.

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“…1). The Interior Highlands of Borneo are mainly composed of the RajangEmbaluh Group which is a thick succession of strongly deformed Upper Cretaceous to Paleogene deep-water turbidite clastic deposits that crop out in a series of belts from Kalimantan to north Sabah (Tate, 2001;Cullen, 2014). The Rajang group, predominantly occurring in the Sarawak part of the Interior Highlands, has been summarized as an Upper Cretaceous-Middle Eocene steeply dipping shaly turbidite with thin sandstone layers ( Fig.…”

Section: Geologymentioning

confidence: 99%

“…1) and is considered to experience an intra-plate setting since at least Late Miocene. A large number of works have confirmed the incidence of important Late Mio-PlioQuaternary tectonic events in the offshore and coastal regions of northwest Borneo (e.g., Cullen, 2010Cullen, , 2014Kessler, 2010;Kessler and Jong, 2011;Mathew et al, 2014;Menier et al, 2014;Pubellier and Morley, 2014). However, in the onshore interior parts of Borneo, studies pertaining to possible recent and/or present-day tectonic activity and the consequent geomorphic expressions with regard to surface processes and landscape response to forcings are inadequately constrained.…”

Section: Introductionmentioning

confidence: 99%