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Mixed/Hybrid Systems (Turbidite, MTDs and Contourites) on Continental Margins

F. Javier Hernández-Molina, Karyna Rodriguez & Neil Hodgson

21-22 June 2023

Lisbon, Portugal

Sediment gravity flows and along-slope bottom currents (contourites) are the two main deep-water sedimentary processes shaping the continental margins and controlling the stacking patterns of their sedimentary successions. Depending on which one of these processes dominates, either a pure mass transport deposit (MTD), turbiditic or contourite depositional systems develop. But, when these processes interact each other, a hybrid or mixed depositional systems are generated. These hybrid systems are characterized by a wide spectrum of systems dominated by either along- or down-slope processes forming morphological features and deposits which deviate away from end-member models. These hybrid systems have only just been recently identified but due to their economic importance proven by recent significant discoveries (Coral and Mamba Fields, Mozambique and Jubilee Field, Ghana) they have begun to be studied in more detail.

Examples of hybrid / mixed depositional systems have been described in the offshore of Mozambique, Uruguay, Brazil, Argentina and Antarctica. In spite of these examples and their importance, there is a lack of knowledge about these systems themselves and the nature of processes interaction at the base of their origin. Similarly, the role of bottom-currents in the redistribution and reworking of deep-water sediments forming contourite systems, has been clearly underestimated. The diagnostic criteria to identify them at the facies and seismic scales in relation to sediment gravity flows deposits is still missing and the paleoceanographic implications are unknown. The interaction of processes promotes the deposition of clean sandstone deposits as a result of vigorous bottom currents, or due to the reworking of overspill sediments in both canyons/channels and inter-channel areas, which have renewed interest and attention from both academia and the exploration industry which should result in providing insights into a great future exploration opportunity.

Wednesday 21 June 2023

Session 1: Processes & Deposits
8.30 - 8.55	Registration and Arrival Coffee
8.55 - 9.00	Welcome from Chairmen
9.00 - 9.30	Keynote-1 Gravitational Processes and Deposits Ben Kneller (Univ. Aberdeen, UK)
9.30 - 9.50	Seismic Characterization of Cretaceous Deposits Reworked by Bottom Currents, Norwegian Sea, Norway Serié, C.
9.50 - 10.10	The Onset of Deep-Water Circulation Through the Equatorial Atlantic Gateway: Evidence From Mid-Cretaceous Sediment Waves and Contourite Drifts, Offshore of Guinea Duarte, D.
10.10 - 10.40	Morning Coffee Break - Posters
10.40 - 11.00	The Cretaceous-Paleogene Evolution of Bottom Current Activity in the Northern Carnarvon Basin, North West Shelf of Australia Elders, C.
11.00 - 11.20	An Early Cenozoic Shelf Basin Succession – Mixed Marine Deposits From Onshore Svalbard (Norway), European Arctic Weber, M.
11.20 - 11.40	Tracing the Origins of the Deep-Water Systems Offshore Mauritania Using Mega-Regional 3D Seismic Data Gillbard, E.
11.40 - 12.00	Dynamic Mass Transport and Turbidite Processes Extracted From 3D Seismic Data Laake, A.
12.00 - 12.20	Aviat, North Sea: Pleistocene Contourite or Hyperpycnite? Cater, J.
12.20 - 13.15	Lunch Break
13.15 - 13.45	Keynote-2 Mixed Systems Sara Rodrigues (RHUL, UK)
13.45 - 14.05	Deep Marine Gaps as Areas of Heightened Bottom Current Reworking of Fine-Grained Hemipelagic Sediments: A Case Study of Mixed (Pelagic-Contourites) in the NE Atlantic Glazkova, T.
14.05 - 14.25	Evolution of Slope Deposition in the Zambezi Delta Depression (Mozambique): Transition From Along to Down-Slope Dominated Processes Moragas, M.
14.25 - 14.45	The Stratigraphic Position of Contourites and Reworked Turbidites: Taking the Pulse of Internal Processes? Hernández-Molina, F.J.
14.45 - 15.05	Thick-Bedded Turbidites and Hybrid Event Beds (HEB) in Tajau Sandstones, Kudat Formation, NW Sabah, Malaysia Binti Abdul Jalil, N.
15.05 - 15.30	Afternoon Coffee Break - Posters
15.30 - 16.00	Keynote-3 Ichnological Analysis: A Tool for Characterizing Contourites, Turbidites & Other Deep-Marine Sedimentary Systems Francisco J. Rodriguez-Tovar (Univ. Granada, Spain)
16.00 - 16.20	Trace Fossils Affecting Petrophysical Properties of Bottom Current Deposits: The Case of Macaronichnus Dorador, J.
16.20 - 16.40	Trough Mouth Fans as High-Resolution Source-to-Sink Archives Formed by Contourites, Turbidites, Debris Flows, and Megaslides Bellwald, B.
16.40 - 17.00	Pockmark Fields on the Marquês De Pombal Fault Block, Southwest Iberian Margin Gamboa, D.
17.00 - 18.30	Posters
18.30	Closing of Day 1

Thursday 22 June 2023

Session 2: Hybrid / Mixed Depositional Systems
8.30 - 8.55	Registration and Arrival Coffee
8.55 - 9.00	Introduction
9.00 - 9.30	Keynote-4 Contourite and Mixed Systems: Conceptual and Economic Implications in a Lower Carbon Energy World Adriano Viana (Petrobras, Brazil)
9.30 - 9.50	Deep-Water Depositional Architectures in a Continental Passive Margin Setting in Western Black Sea Basin (Offshore Romania and Bulgaria) Panaiotu, D.
9.50 - 10.10	Northern Santos Basin, Brazil: A Seismic Laboratory to Study Different Types of Deepwater Systems Assis, V.
10.10 - 10.40	Morning Coffee Break - Posters
10.40 - 11.00	Seismic Characterization of Contourites and Mixed Depositional Systems Along the East Coast of South Africa Africa, R.
11.00 - 11.20	Seismic Stratigraphy of an Eocene-Pliocene Mixed Depositional System on the SE New Zealand Continental Margin, Great South Basin Ibezim, O.
11.20 - 11.40	Interpretation of Seismic Data for Mixed Systems – From 2D to 3D Laake, A.
11.40 - 12.00	Bottom Current Activity and Impact on Mixed Systems: The Unique Case Off Nova Scotia, Canada Rodrigues, S.
12.00 - 13.00	Lunch Break
13.00 – 13.30	Keynote-5 Are Mixed Deepwater Systems Part of the Next Oil and Gas Revolution? Jon Rotzien (Basin Dynamics, USA)
Session 4: Numerical Models & Tank Experiments
13.30 - 13.50	Laboratory Process-Product Modelling of Mixed Turbidite-Contourite Depositional Systems Eggenhuisen, J.
13.50 - 14.10	Analogue Experiments of Mixed Turbidite-Contourite Systems: Linking Flow Dynamics to Grainsize Trends Adema, P.
14.10 - 14.30	Turbulent Structure of Super-Critical & Sub-Critical Turbidity and Gravity Currents Balachandar, S.
14.30 - 15.00	Afternoon Coffee Break - Posters
Session 5: Implications on Geosciences Applied to Energy Transition / Geoenergy
15.00 - 15.20	Contourites and Sediment Waves: Targets or Pitfalls in Hydrocarbon Exploration? Raisson, F.
15.20 - 15.40	Oligocene Turbidite HC Reservoir Around Africa Margins: Relationships Between Offshore Depositional Processes and Inland Dynamics of Africa Continent at Eocene/Oligocene Transition Lottaroli, F.
15.40 - 16.00	Ocean Gateway in Active Continental Margin Implication to Contourites Deposit as Reservoir Rock Potential: Seismic Investigation in Offshore Indonesia Cahyagempita, A.P.
16.00 - 16.20	Mapping Reservoir Quality and Stratigraphic Seal in Hybrid Siliciclastic Systems From 3D Seismic Offshore Deepwater Senegal Winter, F.
16.20 - 16.40	Characteristics and Formation Mechanism of Chang 7 Tight Sandstone Oil Reservoir in Ordos Basin, China Ma, W.
16.40 – 17.00	Onshore Sandy Contourite Deposits at Miradouro Da Lua – Implication for Blocs 6, 7, 19 and 20 Oil Exploration (Kwanza Basin, Angola) Cauxeiro, C.
17.00 – 17.20	Paradigms and Challenges of CO2 Geostorage in the Portuguese Atlantic Margin: Implications on the Deepwater Sedimentary Systems Matias, H.
17.20 – 18.30	General Discussion
18.30	Closing of Workshop

Posters

Session 1: Processes & deposits
Ichnological analysis applied to sub-environments characterization within a turbiditic system: a case study from the Tabernas basin (SE Spain) Cabrera-Ortiz, J.-F.
Pockmark fields on the Marquês de Pombal Fault Block, Southwest Iberian Margin Gamboa, D.
Channel geometries formed by meltwater turbidites across the last glaciation on the North Sea Fan Garcia, A.
Discriminatory sedimentary facies for contourites, reworked turbidites, turbidites and hemiplegic/ pelagic deposits Hernández-Molina, F.J.
Hidden Gem Beneath Tunu Giant Gas Field Slope Deposits & Low Stand Wedge Play in Mahakam PSC, Kutai Basin Indonesia Irhamsyah, F.M.
Using mixer data weighted blend as a tool for depicting different geobodies in deepwater sediments Lavrnja, B.
Onset of South China Sea bottom water circulation and its global implications Liu, S.
Turbiditic currents determine tiering preservation in autocomposite chalky ichnofabrics of pelagite/muddy contourite deposits Miguez-Salas, O.
Upper paleozoic turbidite-MTD complexes may help understanding stratigraphic traps in continental margins Mottin, T.
Potential role of mass-transport deposits in petroleum systems: a meso- to micro-scale outcrop-based perspective Naves de Lima Rodrigues, M.C.
Tortonian paleoenvironmental conditions linked to the deposition of turbidites from the Mediterranean Tabernas Basin (SE Spain): An integrative approach. Perez-Asensio, J.N.
Halokinetically induced mass-transport deposits in minibasins from northern Santos Basin, Brazil Rebelo Diório, G.
Sedimentary facies and facies associations of mixed depositional systems: the exemplary cases of Northern Mozambique and Antarctic Peninsula Rodrigues, S.
Mass transport deposits in the Donegal Barra Fan and their association with British Irish Ice Sheet dynamics Roy, S.
The slump that never was: a reinterpretation of soft-sediment deformed sandstones from the lower Cretaceous Recôncavo Basin, Brazil Silveira, D.
Large-scale bottom currents and gravitational features in Santos Basin (SW Atlantic) Ramos, R. B.
Session 2: Hybrid / mixed depositional systems
Evolution from Late Miocene to present-day of sandy deposits on mixed depositional systems in the Gulf of Cadiz Llave, E.
Identification of Hybrid Systems from Regional Seismic Datasets Rodriguez, K.
Bedforms of the mixed turbidite–contourite system in the Cosmonaut Sea, East Antarctica Yin, S.
Session 3: Data integration & multidisciplinary analysis
Along-slope paleocurrent directions derived from two independent unconventional techniques: magnetic fabric and 2D indicators Maars, J.
Session 4: Numerical models & tank experiments
Physical Modelling of the Interaction Between Turbidity Current and Contour Current Under the Effect of Coriolis Force, in a straight channel Bastianon, E.
Session 5: Implications on geosciences applied to energy transition / Geoenergy
Mesozoic-Tertiary carbonate reservoirs in the western flank of the Middle Caspian basin, north-east Azerbaijan Aliyeva, E.
Shale gas prospects in the Maykopian Formation, Middle Kura basin, Azerbaijan Aliyeva, E.
Geological interpretation of Ultra-Deep Azimuthal Resistivity (UDAR) for reservoir characterization - A hierarchical interpretation method to fill the gap between well log and seismic scales Berton, F.

Field Seminar

Lisbon, Portugal

Tuesday, 20 June 2023, 8:00 a.m.–5:00 p.m.

Late Jurassic Deep Water Depositional Systems from the Late Jurassic of the Lusitanian Basin

Come along on this 1-day field seminar and tour outcrops in the Serra de Montejunto, just north of Lisbon and on the coast from Porto Novo to Paimogo.

Instructors:: Ricardo Pereira, GeoBioTec - Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa.; Gil Machado, ChronSurveys Lda & Instituto Dom Luiz
Fees:: €190 - Local VAT applicable
Limit:: 20 Participants
Includes:: Ground Transportation; Snacks and Refreshments; Lunch and Dinner; Guidebook
Departure Time/Location: 20 June 2023 8:30am; Hotel Dom Pedro

Note:Transportation to start point is not included in the costs of this trip. Please bring clothing for hot day time temperatures (sun hat/ sun glasses/ sun cream etc.). Participants must wear suitable and comfortable light trekking shoes.

Aims

Geological escarpment near Lisbon Portugal To gain or increase an understanding of the tectono-sedimentary processes of continental extension and rifting supported by outcrop observations, with focus on deep-depositional marine systems. Discuss implications for prospective petroleum systems. Promote debate and nourish new insights between attendants.

About the Field Trip

Geological escarpment near Lisbon Portugal The Lusitanian Basin records the proximal events of syn- to post rift evolution of the hyper-extended West Iberian Margin, showing some outstanding examples of the combined tectono-stratigraphic depositional systems. Here, the Late Jurassic reveals diverse aspects of mixed marine depositional systems including not only submarine fans and turbidites, but also the build-up of carbonate reefs and shoreface to fluvial clastic sequences. Throughout the field trip the different depositional aspects can be observed in detail to demonstrate how such depositional systems can vary in time and space. Observation of these outcrops allows a better understanding on how deep-water depositional systems can change within a sub-basin and help improving the understanding of reservoir properties.

Added on 06 February, 2020

Field Seminar

Lisbon, Portugal - SANA Metropolitan Hotel

Friday, 23 June 2023, 8:00 a.m.–5:00 p.m.

Stone, Water and Quakes - A Geological-Historical Tour of Old Town Lisbon

Geotour the Alfama (Old Town) of Lisbon with Gil Machado and explore the link between the history of Lisbon and its geology.

Geotour Leader:: Gil Machado, ChronSurveys Lda & Instituto Dom Luiz
Departure Time/Location:: 23 June 2023 9:30am; Hotel Dom Pedro
Fees:: €60 - Local VAT applicable

Note: Comfortable walking shoes, water, sunglasses and hat are recommended

Itinerary

St. Luzia Belvedere

Roman/Moorish Wall - We will be seeing several preserved stretches of the wall and how it was incorporated into the city growth

St. George Castle – We will visit the outer part.

Lisbon Cathedral - We will be seeing the architectural aspects of the church, the building stones and, if open to the public, archaeological finds of the old mosque that stood in the same place.

St. Anthony Church

Roman Theatre - We will have a glimpse of Roman Lisbon with the view over the theatre and we will discuss the building stones used (which derived from many parts of the empire).

Chafariz de Dentro - We will see several historical fountains, old thermal baths and explore the hydrogeology of Lisbon and how water supply affected the development of the city.

Old Ship Harbour - Preserved in modern downtown.

Lunch at a restaurant with historical interest (TBC)

Added on 22 September, 2021

Mixed/Hybrid Systems (Turbidite, MTDs and Contourites) on Continental Margins

Hotel Dom Pedro

Av. Eng. Duarte Pacheco 24

LisbonLisboa 1070-110

Portugal

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