Publications
70 results found
Bowman AP, Johnson HD, 2014, Storm-dominated shelf-edge delta successions in a high accommodation setting: The palaeo-Orinoco Delta (Mayaro Formation), Columbus Basin, South-East Trinidad, SEDIMENTOLOGY, Vol: 61, Pages: 792-835, ISSN: 0037-0746
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- Citations: 55
Zakaria AA, Johnson HD, Jackson CAL, et al., 2013, Mass Transport Complex (MTC) on NW Borneo slope; influence of thrust related folding on its stratigraphic development
Zakaria AA, Johnson HD, Jackson CAL, et al., 2013, Sedimentology of the major W crocker submarine fan system; analogue to the younger productive fans, NW Sabah basin
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- Citations: 1
Zakaria AA, Johnson HD, Jackson CAL, et al., 2013, Sedimentary facies analysis and depositional model for the Palaeogene West Crocker submarine fan system, NW Borneo, Journal of Asian Earth Sciences, Vol: 76, Pages: 283-300
This study outlines a sedimentological analysis of the Palaeogene West Crocker Formation (WCF) around the Kota Kinabalu area of SW Sabah, which represents a large submarine fan depositional system within part of what was the complex and tectonically active margin of NW Borneo. The newly acquired and often extensive outcrop data summarised in this study has resulted in a more complete synthesis of the Crocker fan depositional system than has been previously possible. Seven facies (F1 to F7) have been identified which constitute three main facies groups: (1) sand-dominated facies (F1 to F3), comprise high- to low-density turbidites and form the dominant part of the WCF, (2) debris flow-dominated facies (F4 to F6) comprises mud- and sand-dominant debris flows and mass transport deposits (MTD), which form a secondary but highly distinctive part of the WCF, and (3) mudstone-dominated facies (F7), represent a subordinate part of the WCF. Analysis of the vertical facies successions (from proximal to distal), has resulted in recognition of five major genetic units: (1) Channel-levee complex; characterised by thick (30-60 m) thinning and fining upward facies succession, which are dominated in their lower part by thick-bedded (1-6 m), amalgamated high-density (Lowe-type) turbidites with rare debrite beds; the upper part is dominated low-density (Bouma-type) turbidites, without associated debrite beds. (2) Channelised lobes; characterized by 2-10 m thick, coarsening upward, which are overlain by 5-20 m thick fining upward facies successions; these successions are dominated by high-density turbidites (c. 0.5-1 m thick) and linked co-genetic turbidite-debrite beds (0.1-0.5 m thick), with subordinate mudstone facies. (3) Non-channelised lobes; comprise 5-20 m thick coarsening upward facies successions; these start with mudstone facies, which pass gradually upwards into linked co-genetic turbidite-debrite beds; sandstone bed thickness increases upwards, while the debrite caps tend
Legler B, Johnson HD, Hampson GJ, et al., 2013, Facies model of a fine-grained, tide-dominated delta: lower Dir Abu Lifa Member (Eocene), Western Desert, Egypt, Sedimentology, Vol: 60, Pages: 1313-1356
Existing facies models of tide-dominated deltas largely omit fine-grained, mud-rich successions. Sedimentary facies and sequence stratigraphic analysis of the exceptionally well-preserved Late Eocene Dir Abu Lifa Member (Western Desert, Egypt) aims to bridge this gap. The succession was deposited in a structurally controlled, shallow, macrotidal embayment and deposition was supplemented by fluvial processes but lacked wave influence. The succession contains two stacked, progradational parasequence sets bounded by regionally extensive flooding surfaces. Within this succession two main genetic elements are identified: non-channelised tidal bars and tidal channels. Non-channelised tidal bars comprise coarsening-upward sand bodies, including large, downcurrent-dipping accretion surfaces, sometimes capped by palaeosols indicating emergence. Tidal channels are preserved as single-storey and multilateral bodies filled by: (i) laterally migrating, elongate tidal bars (inclined heterolithic strata, 5 to 25 m thick); (ii) forward-facing lobate bars (sigmoidal heterolithic strata, up to 10 m thick); (iii) side bars displaying oblique to vertical accretion (4 to 7 m thick); or (iv) vertically-accreting mud (1 to 4 m thick). Palaeocurrent data show that channels were swept by bidirectional tidal currents and typically were mutually evasive. Along-strike variability defines a similar large-scale architecture in both parasequence sets: a deeply scoured channel belt characterised by widespread inclined heterolithic strata is eroded from the parasequence-set top, and flanked by stacked, non-channelised tidal bars and smaller channelised bodies. The tide-dominated delta is characterised by: (i) the regressive stratigraphic context; (ii) net-progradational stratigraphic architecture within the succession; (iii) the absence of upward deepening trends and tidal ravinement surfaces; and (iv) architectural relations that demonstrate contemporaneous tidal distributary channel infill and ti
Lonergan L, Jamin NH, Jackson CA-L, et al., 2013, U-shaped slope gully systems and sediment waves on the passive margin of Gabon (West Africa), Marine Geology, Vol: 337, Pages: 80-97
3-D seismic reflection data has enabled the documentation of a system of remarkable modern and buried u-shaped gullies which intimately co-exist with upslope migrating sediment waves along 80 km of the Gabon continental slope. The modern gullies occur on a silty mud-dominated slope in water depths of 150–1500 m on an ~50 km wide slope with a gradient of 4.5° decreasing to 1.5°. The gully sets persist laterally for distances of at least 40 km and extend downslope for distances of up to 60 km. The gullies are u-shaped in crosssection,with a relief of 5–30 m, and widths of 50–400 m. Intriguingly, the gullies become narrower andshallower with distance down the slope, as well as increasing in number down slope. The majority of the gullies appear to be erosional but some appear to have resulted from simultaneous aggradation along inter-gully ridges and non-deposition along the adjacent gully floor. Hence, these gullies are interpreted to have formed mainly inresponse to spatially-variable deposition, rather than erosion. Upslope migrating sediment waves occur in close proximity to the gullies. Gullies cross fields of sediment waves and waves are observed to migrate up-slopelocally within both the erosional and aggradational gullies. Evidence is lacking for any slumping or headward erosion in the headwall region of the gullies, which discounts formation by very local sediment gravity flowsoriginating from shelf-edge collapse, as has been observed in other v-shaped gully systems. Based on our new data, and supported by theoretical studies on the mechanics of turbidity currents, we propose that the gulliesand related sediment waves were formed by diffuse, sheet-like, mud-rich turbidity currents that presumably originated on the shelf. Instabilities in the turbidity currents generated a wave-shaped perturbation in a crossflow direction leading to regularly spaced regions of faster and slower flow. For the non-aggradational and erosional gullies it is
Hassan MHA, Johnson HD, Allison PA, et al., 2013, Sedimentology and stratigraphic development of the upper Nyalu Formation (Early Miocence), Sarawak, Malaysia: A mixed wave and tide influenced coastal system, Journal of Asian Earth Sciences
Massart BYG, Jackson MD, Hampson GJ, et al., 2011, Three-dimensional Characterization and Surface-based Modeling of Tide-dominated Heterolithic Sandstones, EAGE
Jackson CA-L, Johnson HD, Zakaria AA, et al., 2009, Sedimentology, stratigraphic occurrence and origin of linked debrites in the West Crocker Fm (Oligo-Miocene), Sabah, NW Borneo, Marine and Petroleum Geology, Vol: 26, Pages: 1957-1973
The West Crocker Fm (Oligocene-Early Miocene), NW Borneo, consists of a large (>20000 km2) submarine fan deposited as part of an accretionary complex. A range of gravity-flow deposits are observed, the most significant of which are mud-poor, massive sandstones interpreted as turbidites and clast-rich, muddy sandstones and sandy mudstones interpreted as debrites. An upward transition from turbidite to debrite is commonly observed, with the contact being either gradational and planar, or sharp and highly erosive. Their repeated vertical relationship and the nature of the contact between them, these intervals are interpreted as being deposited from one flow event which consisted of two distinct flow phases (fully turbulent turbidity current and weakly turbulent to laminar debris flow). The associated bed is called a co-genetic turbidite-debrite, with the upper debrite interval termed a linked debrite. Linked debrites indicates are best developed in the non-channelised parts of the fan system, and are absent to poorly-developed in the proximal channel-levee and distal basin floor environments. Due to outcrop limitations, the genesis of linked debrites within the West Crocker Formation is unclear. Based on clast size and type, it seems likely that a weakly turbulent to laminar debris-flow flow phase was present when the flow event entered the basin. A change in flow behaviour may have led to deposition of a sand-rich unit with ‘turbidite’ characteristics, which was subsequently overlain by a mud-rich unit with ‘debrite’ characteristics. Flow transformation may have been enhanced by the disintegration and incorporation into the flow of muddy clasts derived from the upstream channel floor, channel mouth or from channel levee collapse. Lack of preservation of this debrite in proximal areas may indicate either bypass of this flow phase or that the available outcrops fail to capture the debris flow entry point. Establishing robust sedimentological c
Jackson CA-L, Johnson HD, 2009, Sustained turbidity currents and their interaction with debrite-related topography; Labuan Island, offshore NW Borneo, Malaysia, Sedimentary Geology, Vol: 219, Pages: 77-96
The Temburong Fm (Early Miocene), Labuan Island, offshore NW Borneo, was deposited in a lower-slope to proximal basin-floor setting, and provides an opportunity to study the deposits of sustained turbidity currents and their interaction with debrite-related slope topography. Two main gravity-flow facies are identified; (i) slump-derived debris-flow deposits (debrites) - characterised by ungraded silty mudstones in 1.5 to >60 m thick beds which are rich in large (>5 m) lithic clasts; and (ii) turbidity current deposits (turbidites) - characterised by medium-grained sandstone in beds up to 2 m thick, which contain structureless (Ta) intervals alternating with planar-parallel (Tb) and current-ripple (Tc) laminated intervals. Laterally discontinuous, cobble-mantled scours are also locally developed within turbidite beds. Based on these characteristics, these sandstones are interpreted as having been deposited from sustained turbidity currents. Cobble-mantled scours indicate periods of intense turbidity current waxing. The sustained turbidity currents are interpreted to have been derived from retrogressive collapse of sand-rich mouth bars (breaching) or directly from river effluent (hyperpycnal flow). Analysis of the stratal architecture of the two facies indicates that routing of the turbidity currents was influenced by topographic relief developed at the top of underlying debrite Turbidite beds are locally eroded at the base of an overlying debrite, possibly due to clast-related substrate ‘ploughing’ during the latter flow event. This study highlights the difficulty in constraining the origin of sustained turbidity currents in ancient sedimentary sequences. In addition, this study documents the importance large debrites may have in generating topography on submarine slopes and influencing routing of subsequent turbidity current and the geometry of their associated deposits.
Hampson GJ, Sixsmith PJ, Kieft RL, et al., 2009, Quantitative analysis of net-transgressive shoreline trajectories and stratigraphic architectures: mid-to-late Jurassic of the North Sea rift basin, Basin Research, Vol: 21, Pages: 528-558
This paper outlines the use of the shoreline trajectory concept to understand the controls on net-transgressive reservoir distribution and architecture in the highly productive Middle and Late Jurassic plays in the North Sea. Two broad groups of regressive–transgressive sandstone tongue are identified, with distinctive geometries, architectures and values of net-transgressive shoreline trajectory defined by the stacking arrangement of multiple tongues. Shoreface tongues were supplied by longshore-transported, marine-reworked sediment and are associated with low-to-moderate transgressive trajectories (typically <0.2°). These tongues have variable dip extents that decrease weakly as the angle of shoreline trajectory increases, relatively small thicknesses that increase weakly with the angle of transgressive trajectory, and partial or no overlap with underlying and overlying tongues down depositional dip. Deltaic-to-estuarine tongues were supplied directly by fluvial sediment and are associated with moderate-to-very high transgressive trajectories (typically >0.1°). These tongues have small dip extents, variable thicknesses that increase weakly with the angle of transgressive trajectory, and partial to full overlap with underlying and overlying tongues down depositional dip, although vertically stacked tongues are separated by thin mudstones over much of their extents. There is some overlap in geometry and stacking arrangement of these two groups of sandstone tongues. The temporal and spatial distribution of shoreface and deltaic-to-estuarine sandstone tongues reflects linked variations in tectonic subsidence and sediment routing within the evolving rift basin. Deltaic-to-estuarine tongues with moderate-to-very high transgressive trajectories were developed in rapidly subsiding fault-bounded depocentres supplied directly by fluvial sediment, whereas shoreface tongues with low-to-moderate transgressive trajectories characterised slowly subsiding faul
Sixsmith PJ, Hampson GJ, Gupta S, et al., 2008, Facies architecture of a net transgressive sandstone reservoir analog: The Cretaceous Hosta Tongue, New Mexico, AAPG BULLETIN, Vol: 92, Pages: 513-547, ISSN: 0149-1423
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- Citations: 50
Hampson GJ, Rodriguez AB, Storms JEA, et al., 2008, GEOMORPHOLOGY AND HIGH-RESOLUTION STRATIGRAPHY OF PROGRADATIONAL WAVE-DOMINATED SHORELINE DEPOSITS: IMPACT ON RESERVOIR-SCALE FACIES ARCHITECTURE, Editors: Hampson, Steel, Burgess, Dalrymple, Publisher: S E P M - SOC SEDIMENTARY GEOLOGY, Pages: 117-+, ISBN: 978-1-56576-131-5
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- Citations: 60
Crevello P, Johnson HD, Tongkul F, et al., 2007, Mixed braided and leveed-channel turbidites, West Crocker Fan System, Northwest Borneo, Atlas of Deep-Water Outcrops, Editors: Nilsen, Shew, Steffens, Studlick, Tulsa, Oklahoma, USA, Publisher: American Association of Petroleum Geologists
Morris JE, Hampson GJ, Johnson HD, 2006, A sequence stratigraphic model for an intensely bioturbated shallow-marine sandstone: the Bridport Sand Formation, Wessex Basin, UK, SEDIMENTOLOGY, Vol: 53, Pages: 1229-1263, ISSN: 0037-0746
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- Citations: 37
Jackson MD, Yoshida S, Muggeridge AH, et al., 2005, Three-dimensional reservoir characterization and flow simulation of heterolithic tidal sandstones, AAPG BULLETIN, Vol: 89, Pages: 507-528, ISSN: 0149-1423
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- Citations: 66
Yoshida S, Johnson HD, Pye K, et al., 2004, Transgressive changes from tidal estuarine to marine embayment depositional systems: The Lower Cretaceous Woburn Sands of southern England and comparison with Holocene analogs, AAPG BULLETIN, Vol: 88, Pages: 1433-1460, ISSN: 0149-1423
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- Citations: 41
Hampson GJ, Sixsmith PJ, Johnson HD, 2004, A sedimentological approach to refining reservoir architecture in a mature hydrocarbon province: the Brent Province, UK North Sea, MARINE AND PETROLEUM GEOLOGY, Vol: 21, Pages: 457-484, ISSN: 0264-8172
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- Citations: 25
Bouroullec R, Cartwright JA, Johnson HD, et al., 2004, Syndepositional faulting in the Gres d'Annot Formation, SE France: high-resolution kinematic analysis and stratigraphic response to growth faulting, International Workshop on Confined Turbidite Systems, Publisher: GEOLOGICAL SOC PUBLISHING HOUSE, Pages: 241-265, ISSN: 0305-8719
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- Citations: 25
Jackson MD, Muggeridge AH, Yoshida S, et al., 2003, Upscaling permeability measurements within complex heterolithic tidal sandstones, MATHEMATICAL GEOLOGY, Vol: 35, Pages: 499-520, ISSN: 0882-8121
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- Citations: 44
Gupta R, Johnson HD, 2003, High-resolution Facies Architecture of Heterolithic Tidal Deposits: An Integrated Outcrop and Electrofacies Analysis of a Complex Reservoir, Geological Applications of Well Logs: AAPG Methods in Exploration, Editors: Lovell, Parkinson, Tulsa, Oklahoma, USA, Publisher: American Association of Petroleum Geologists, Pages: 161-184, ISBN: 089181664X
Gupta R, Johnson HD, 2001, Characterization of heterolithic deposits using electrofacies analysis in the tide-dominated Lower Jurassic Cook Formation (Gullfaks Field, offshore Norway), PETROLEUM GEOSCIENCE, Vol: 7, Pages: 321-330, ISSN: 1354-0793
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- Citations: 8
Yoshida S, Jackson MD, Johnson HD, et al., 2001, Outcrop studies of tidal sandstones for reservoir characterization (Lower Cretaceous Vectis formation, Isle of Wight, Southern England), Editors: Martinsen, Dreyer, Publisher: Elsevier, Pages: 233-258, ISBN: 9780444502414
Yoshida S, Jackson MD, Johnson HD, et al., 2001, Outcrop studies of tidal sandstones for reservoir characterization (Lower Cretaceous Vectis formation, Isle of Wight, Southern England), Sedimentary environments offshore Norway: palaeozoic to recent, Publisher: Elsevier, Pages: 233-258
Fraser IS, Robinson AM, Johnson HD, et al., 2000, Upper Jurassic, The Millennium Atlas, Editors: Evans, Publisher: The Geological Society Publishing House
Lonergan L, Lee N, Johnson HD, et al., 2000, Remobilisation and Injection in Deepwater Depositional Systems: Implications for Reservoir Architecture and Prediction, GCSSEPM Foundation Annual Bob F. Perkins Research Conference, Publisher: GCSSEPM Foundation, Pages: 515-532, ISSN: 2161-1955
Lonergan L, Lee N, Johnson HD, et al., 2000, Remobilisation and Injection in Deepwater Depositional Systems: Implications for Reservoir Architecture and Prediction, GCSSEPM 20th Annual Research Conference, Pages: 515-532
Jackson MD, Yoshida Y, Johnson HD, et al., 1999, Upscaling Complex Three-Dimensional Bedform-Scale Sedimentary Structures within Tidal Sandstone Reservoirs, AAPG Annual Convention, April 1999
Yoshida Y, Jackson MD, Johnson HD, et al., 1999, Three Dimensional Reconstruction, Flow Simulation and Upscaling of Complex Bedform-Scale Sedimentary Structures within Tidal Sandstone Reservoirs, Advanced Reservoir Characterisation for the 21st Century, Editors: Hentz, Hentz, Hentz
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