22 June, 2023 Lisbon Lisboa Portugal

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.

Mixed/Hybrid Systems (Turbidite, MTDs and Contourites) on Continental Margins - Call for Abstracts Ends on 21 April, 2023

You are invited to submit a abstract presentation proposal. Please complete and submit the abstract by 21 April 2023.

Abstract Submission Guidelines
  • Abstracts should cover the objectives, procedures, results and conclusions of the research and should be no more than 2,500 characters in length including spaces and punctuation. The title, authors, and authors’ affiliations are not included in the character limit. Abstracts can include 2 figures, to be included in the document and uploaded separately for quality purposes.
  • Titles are required—they should be brief and state the topic.
  • Abstract titles should not include company names.
  • If your abstract requires company approval, please start the process immediately.
  • In keeping with the spirit of the workshop, presenters must refrain from making subtle or blatant sales pitches including but not limited to: repeated use of product names, trade names, or pictures, or repeated use of company logo.
  • Evaluation and ranking of abstracts are based on relevance and timeliness of subject matter; usefulness of contribution to the advancement of knowledge, techniques, or practice; and overall clarity, organization, and presentation of ideas. The Technical Program Committee is seeking abstracts with direct application to industry.
  • Sessions will be determined from the abstracts submitted to each theme. Sub-themes may not directly correspond to sessions in the final program.
  • Submit your abstract in the form in which you would like it published. Abstracts will not be edited.
  • Authors will be notified of acceptance or rejection in early May 2023.
  • Authors are invited to have their work, both oral and poster presentations, published on AAPG’s online Search and Discovery to preserve their work for future reference. We will need your permission to do it so.
  • Posters will be presented in coffee breaks sessions. The poster booth will consist of one A0 size panel in Portrait mode

Important: AAPG has no funding for speakers. Do not submit an abstract unless at least one author is certain to attend the convention. All session chairs, speakers, and poster presenters must register to attend the convention — no exceptions.

Download ABSTRACT Template

Submit Abstracts


This 2-day conference aims to bring together diverse experts working on modern and ancient turbidite, MTDs, contourite and hybrid/mixed systems in order to improve the present-day knowledge, models and predictive power. Sessions will include the following themes:

  • Mass transport processes & deposits
  • Turbidite processes & deposits
  • Bottom current processes & deposits (including bottom-current reworked sands, BCRS)
  • Hybrid / mixed depositional systems
  • Synchronous vs asynchronous interactions
  • Numerical models & tank experiments
  • Ichnological analysis of turbidite, MTDs, contourite and hybrid / mixed deposits
  • Data integration & multidisciplinary analysis
  • Implications on hydrocarbon exploration
Invited talks
  • Gravitational processes and deposits, Ben Kneller (Univ. Aberdeen, UK)
  • Bottom current processes and deposits and their conceptual and economic implications, Adriano Viana (Petrobras, Brazil)
  • Mixed systems, Nicole J. Bayliss / Juan Fedele (ExxonMobil, Houston, USA)
  • A new classification system for mixed (turbidite-contourite) depositional systems: examples, conceptual models and diagnostic criteria for modern and ancient records, Sara Rodrigues (RHUL, UK)
  • Implication of Mixed system on HC exploration, Marco Fonnesu (ENI, Italy)
  • Ichnological analysis: a tool for characterizing deep-marine sedimentary systems, Francisco J. Rodriguez-Tovar (Univ. Granada, Spain)


AAPG Event Lisbon Açores Portugal 20 June, 2023 Sedimentology and Stratigraphy, Clastics, Deepwater Turbidites 25 May, 2021 25 May, 2021 8:00 AM 5:00 PM 06 February, 2020
Lisbon, Portugal
20 June 2023

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.

Ricardo Pereira, GeoBioTec - Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa.
Gil Machado, ChronSurveys Lda & Instituto Dom Luiz
€190 - Local VAT applicable
20 Participants
Ground Transportation
Snacks and Refreshments
Lunch and Dinner
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.


Geological escarpment near Lisbon PortugalTo 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 PortugalThe 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.

Show more
AAPG Event Lisbon Lisboa Portugal 23 June, 2023 8:00 AM 5:00 PM 22 September, 2021
Lisbon, Portugal
23 June 2023

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
€60 - Local VAT applicable

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

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)
Show more


Hotel Dom Pedro
Av. Eng. Duarte Pacheco 24
Lisbon 1070-110
Lisbon, Portugal - Dom Pedro Hotel Lisbon, Portugal - Dom Pedro Hotel New Date 56182 Hotel Dom Pedro
Expires on
20 April, 2023
Non-Member Fee
Expires on
20 April, 2023
Member Fee
Expires on
20 April, 2023
Speaker Fee
Expires on
20 April, 2023
Academic Fee
Expires on
20 April, 2023
Student Fee

Pricing does not include local VAT


F Javier Hernandez-Molina F Javier Hernandez-Molina Co-Chair Royal Holloway University of London, UK
Neil Hodgson Neil Hodgson Co-Chair VP Geoscience, Searcher Seismic, UK
Karyna Rodriguez Karyna Rodriguez Co-Chair VP Global New Ventures, Searcher Seismic, UK
Emiliano Mutti, PhD Emiliano Mutti Committee Member University of Parma, Italy
Adriano Roessler Viana Adriano Viana Committee Member Strategic Partnerships Initiative Leader, Petrobras Exploration Academy, Brazil
Joris Eggenhuisen Joris Eggenhuisen Committee Member University of Utrecht, The Netherlands
Francois Raisson Francois Raisson Committee Member TOTAL, France
Ashley Clarke Ashley Clarke Committee Member BP, UK
Giancarlo Davoli Giancarlo Davoli Committee Member Global Geology Advisor, ENI, Italy
Juan Fedele Juan Fedele Committee Member ExxonMobil UIS, USA
Jon R. Rotzien Jonathan Rotzien Committee Member President, Basin Dynamics LLC, USA
David C. Mosher David Mosher Committee Member University of New Hampshire, Canada
Ricardo Pereira Ricardo Pereira Committee Member Researcher, PhD, PARTEX Oil and Gas & Instituto Dom Luiz, Portugal
Gil  Machado Gil Machado Committee Member Tecnhical Director, Chronosurveys Lda & Instituto Dom Luiz, Portugal


Events Manager +44 (0) 203 962 4468
Desktop /Portals/0/PackFlashItemImages/WebReady/diaz-marta.jpg?width=75&quality=90&encoder=freeimage&progressive=true 37979 Marta Diaz

What Can I Do?

Register Now!
Submit Your Abstract
Add Item

Enter Notes:
* You must be logged in to name and customize your collection.
Recommend Recommend
Printable Version Printable Version Email to a friend Email to a friend


Opportunities Available

Contact Marta Diaz ([email protected]) to receive information about sponsor packages.

With Support From

The Drifters Research Group

AAPG Non-endorsement Policy

The American Association of Petroleum Geologists (AAPG) does not endorse or recommend any products and services that may be cited, used or discussed in AAPG publications or in presentations at events associated with AAPG.