Fault reactivation and structural inversion. Backarc and intraplate compressive deformations. Example of the eastern Sunda shelf (Indonesia)

Letouzey, J.; Werner, Philippe; Marty, André

doi:10.1016/0040-1951(90)90425-8

Cited by 87 publications

(45 citation statements)

References 21 publications

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“…A large-scale (100 km north to south) tilted-fault-block platform with a segmented faulted northern margin (northern Barru Area) and gently dipping southern margin (southern Jeneponto Area) accumulated over 600 m of shallow water platform carbonates centred on A C C E P T E D M A N U S C R I P T ACCEPTED MANUSCRIPT 8 the central Pangkajene Area . Although onshore volcaniclastics cover parts of the more southerly deposits of this platform, in the area directly offshore to the west seismic data reveals the unbroken north to south nature of the coeval continuation of the platform (Letouzey et al, 1990). Wilson et al, 2000;Wilson, 2000).…”

Section: Accepted Manuscriptmentioning

confidence: 97%

Diagenesis and fracturing of a large-scale, syntectonic carbonate platform

Arosi

Wilson

2015

Sedimentary Geology

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Please cite this article as: Arosi, Hamed A., Wilson, Moyra E.J., Diagenesis and fracturing of a large-scale, syntectonic carbonate platform, Sedimentary Geology (2015), AbstractThe influence of coeval tectonics on carbonate platform development is widely documented, yet the diagenesis of such syntectonic platforms is barely evaluated.An outcrop, petrographic and geochemical study details here for the first time the diagenesis of the Tonasa Limestone developed in an extensional regime in central Indonesia. This equatorial carbonate system was affected by block faulting, tiltblock rotation, differential uplift and subsidence throughout its Eocene to Early Miocene history (Wilson, 1999;Wilson et al., 2000). The Tonasa carbonate platform is dominated by alteration in shallow to deeper burial depths by fluids with predominantly marine precursor origins.Mechanical and chemical compaction features are common, as are a range of mainly burial-related granular mosaic, blocky and equant calcite cements. Earlier marine cements and meteoric influences are rare, being highly localised to block faulted highs and/or bathymetrically upstanding platform margin areas. Early marine micritisation ofallochems was common on the platform top. Tectonic uplift together with a major oceanic throughflow current are thought to be key influences on localised karstification, meteoric diagenesis and marine cementation. The distribution and orientation of faults, fractures and calcite veins together with evidence for their relative timing are the strongest manifestation of tectonism coeval with diagenesis. There is concordance in the orientation and timing of structures affecting the Tonasa Platform with those basin-wide, with the potential for reactivation of pre-existing basement fabrics.Tectonic subsidence, including fault-associated differential subsidence, controlled the degree of burial diagenesis impacting different areas of the platform. A predominance of burial diagenetic features and dearth of earlier marine or meteoric cementation is seen in other Tertiary equatorial platforms and is partly attributed to: (1) predominance of non-framework building larger benthic foraminifera and/or algae that are prone to remobilisation, have low production rates and limited potential to build to sea level, and (2) high runoff due to the equatorial humid climate contributing to lowered marine salinities in SE Asia.Underlying tectonic reasons for the preponderance of a "regional" diagenetic signature over a "syntectonic" one, fracturing excepted, are: (1) development on the flanks of a backarc basin not on typical continental crust, (2) key platform influencing structures are oblique to the main extensional direction in the basin, and (3) development in an overall subsiding tectonic regime, post-dating basin initiation. The aim here is that this study will contribute to understanding diagenetic alteration of syntectonic carbonate platforms, and those from equatorial regions.

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Section: Accepted Manuscriptmentioning

confidence: 97%

Diagenesis and fracturing of a large-scale, syntectonic carbonate platform

Arosi

Wilson

2015

Sedimentary Geology

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“…However, as convergence rates of colliding plates are variable in time, back-arc extensional basins are generally short-lived. Upon a renewed increase in convergence rates, back-arc extensional systems are prone to destruction by back-arc compressional stresses (e.g., Variscan Rhenohercynian Basin, Sunda Arc and East China rift systems, and Black Sea domain; Cloetingh et al, 1989;Jolivet et al, 1989;Letouzey et al, 1990;Nikishin et al, 2001;Uyeda and McCabe, 1983;Ziegler, 1990a).…”

Section: Back-arc Riftsmentioning

confidence: 97%

Tectonic Models for the Evolution of Sedimentary Basins

Cloetingh

Ziegler

Beekman

et al. 2015

Treatise on Geophysics

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“…An oil exploration and geological studies of the North Sumatera fore-arc Basin (Izart et al, 1994), Central Sumatera Basin (Matson and Moore, 1992), West Sumatera Basin (Beaudry and Moore, 1985), East Java Basin (Letouzey et al, 1990;Brensden et al, 1992;Koesoemadinata et al, 1999;Basden et al, 2000;Sribudiyani et al, 2003) and fore-arc basin off southwest Sumatera and southwest Java (Susilohadi et al, 2005) give a valuable information on the geological evolution of this region. Studies of central Indonesian basins such as: Flores and Savu-Lombok fore-arc Basins (Silver et al, 1986;Van Weering et al, 1989;Van der Werff et al, 1994) and Bali back-arc basin (Kusnida, 2001) provide a broad outline of the geometry and sedimentary sequences of this active margin system and portray the Cenozoic evolution of the basin.…”

Section: Background and Aims Of Studymentioning

confidence: 99%

Deep Sea Sediment Gravity Flow Deposits in Gulf of Tomini, Sulawesi

Kusnida¹

2008

IJOG

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Micro plate collision against the Eastern Arm of Sulawesi since Pliocene has resulted in a major supply of terigenous sediments into Late Miocene rift-basins in Gulf of Tomini. Studies on offshore multi-channel seismic reflection data complemented by published on-land geological data indicate a series of tectonic events that influenced the depositional system in the Gulf of Tomini. During the Late Neogene, alternating pulses of terigenous sediments were deposited in the basins in the form of deep-sea slump-turbidite-pelagic sediments. A sediment gravity flow deposit system at the slope and the base of the basins changed gradually into a deep-sea pelagic fill system toward the center of the basins.Three tectono-stratigraphy sequences (A, B, and C) separated by unconformities indicating the Late Neogene history and the development of the basins were identified. These tectonic processes imply that the earlier sediments in the Gulf of Tomini are accomplished by a differential subsidence, which allows a thickening of basin infill. The Pliocene-Quaternary basin fill marks the onset of a predominant gravity flow depositional system Keywords: Gulf of Tomini, basin, slump, turbidite, pelagic, seismic stratigraphy Sari Tumbukan benua mikro dengan Lengan Timur Sulawesi sejak zaman Pliosen telah mengakibatkan pasokan sedimen terigenus dalam jumlah besar ke dalam cekungan regangan berumur Miosen

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Fault reactivation and structural inversion. Backarc and intraplate compressive deformations. Example of the eastern Sunda shelf (Indonesia)

Cited by 87 publications

References 21 publications

Diagenesis and fracturing of a large-scale, syntectonic carbonate platform

Diagenesis and fracturing of a large-scale, syntectonic carbonate platform

Tectonic Models for the Evolution of Sedimentary Basins

Deep Sea Sediment Gravity Flow Deposits in Gulf of Tomini, Sulawesi

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