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Featured researches published by Johan Sydow.


AAPG Bulletin | 2000

Abstract: A Comparison of Two Late Pleistocene Shelf-Edge Deltas (Indonesia and Gulf of Mexico)- Stratigraphic Architecture, Systems Tracts, Bounding Surfaces, and Reservoir Potential

Harry H. Roberts; Johan Sydow; John M. Robalin; Richard H. Fillon

Abstract Thousands of kilometers of high-resolution seismic data have been collected over two late Pleistocene shelf-edge deltas in very different settings, the northern Gulf of Mexico and the eastern shelf of Borneo in Indonesia. Both deltas have been constructed by falling-to-lowstand deposition associated with the latest Pleistocene glacial maximum, the former by the temperate Mobile River, the latter by the equatorial Mahakam River. Four cores provide detailed stratigraphic control for the Mobile River delta while one long boring and numerous piston and vibracores provide stratigraphic control on the Mahakam delta. Systems tracts and key bounding surfaces have been related to the eustatic sea level curve in both settings over ca. 125 years. Sequence architectures differ significantly, an important consequence of different depositional settings. The tropical Mahakam shelf is tectonically active and has low wave energy, strong oceanic currents, upwelling, and a mixed siliciclastic - carbonate depositional system. The resulting falling-to-lowstand clinoforms downlap a highly irregular surface of isolated carbonate bioherms built above a transgressive surface that formed during the preceding sea level rise. The northeastern Gulf of Mexico is relatively stable, also has low wave energy, but is dominated by siliciclastic sedimentation. Falling-to-lowstand progradation of the Mobile River delta has occurred in numerous overlapping and spatially offset lobes incised by a complex channel network. Clinoforms downlap an isotope stage 5 interglacial condensed section. The Mobile depocenter has migrated from east to west; eastern lobes show evidence of wave reworking while the western flank is fluvially dominated. Both the Mahakam and Mobile deltas are composed of sand-rich clinoforms and channel deposits that possess excellent potential reservoir properties.


AAPG Bulletin | 1994

Stratigraphic Framework of a Late Pleistocene Shelf-Edge Delta, Northeast Gulf of Mexico

Johan Sydow; Harry H. Roberts


AAPG Bulletin | 2001

Late Quaternary Stratigraphy and Sedimentology of the Offshore Mahakam Delta, East Kalimantan (Indonesia)

Harry H. Roberts; Johan Sydow


Archive | 2004

Depositional Architecture of the Lagniappe Delta: Sediment Characteristics, Timing of Depositional Events, and Temporal Relationship with Adjacent Shelf-Edge Deltas

Harry H. Roberts; Richard H. Fillon; Barry Kohl; John M. Robalin; Johan Sydow


Archive | 1996

The Offshore Mahakam Delta: Stratigraphic Response of Late Pleistocene-to-Modern Sea Level Cycle

Harry H. Roberts; Johan Sydow


Archive | 1992

Constructional Subcomponents of a Shelf-edge Delta, Northeast Gulf of Mexico

Johan Sydow; Harry H. Roberts; Arnold H. Bouma; Robert D. Winn


AAPG Bulletin | 2000

ABSTRACT: Late Quaternary deposition, Mahakam River delta Indonesia: stratigraphic and sedimentological elements of a mixed siliclastic deltaic and carbonate shelf system modulated by eustatic cycles

Roberts; Harry; Johan Sydow; Baru


Archive | 1996

The Important Role of Carbonates in the Stratigraphic Architecture of Late Pleistocene-Modern Mahakam River Delta-Building Cycles: Abstract

Harry H. Roberts; Johan Sydow


AAPG Bulletin | 1995

The Offshore Mahakam Delta of East Kalimantan: A New High Resolution Perspective: ABSTRACT

Harry H. Roberts; Johan Sydow


AAPG Bulletin | 1995

Siliciclastic-Carbonate Facies Interactions in a Tropical Deltaic Complex: Mahakam Delta, Indonesia: ABSTRACT

Harry H. Roberts; Johan Sydow

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Harry H. Roberts

Louisiana State University

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Arnold H. Bouma

Louisiana State University

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Richard H. Fillon

University of South Carolina

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Arnold H. Bouma

Louisiana State University

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