The integrated study of field (young, and ancient analogues preserved in orogenic systems), seismic reflection/refraction, gravity/magnetics, well data (exploration and IODP), analogue and thermo-mechanical modelling approaches have greatly improved our understanding of the processes that influence and modify the architecture (crustal, magmatic, sedimentary, structural and thermal) of the distal domain of rifted margins. As more data becomes available our appreciation of the 3D and ultimately 4D geodynamic processes that influence the formation and present day structure of distal margins is evolving. Although all rifted margins are somewhat unique, similar genetic processes are often proposed despite the underlying interpretational uncertainties. These uncertainties can impact the resulting interpretations relating to the tectono-magmatic and crustal models. Therefore, despite many models the process often remains controversial and/or far for being well constrained.

This session would like to explore and discuss the observations and interpretations derived from geological and geophysical datasets across rifted margins and distal margins. Importantly, uncertainties should be addressed with respect to our current understanding of the genetic rift-domain evolution. Observations should focus on the evidences for processes that impact the final architecture, rock content and thermal imprint of conjugate margins. This relates to the observed style of extension and thinning (high vs low angle faulting and static vs dynamic interpretations and their evidence), vertical motions (e.g. uplift and subsidence), the isostatic impacts of the tectonic, magmatic and stratigraphic history relating to the genetic-rift domains.

Co-organized as GD5.9/SM1.16/SSP3.26
Convener: Philip Ball | Co-conveners: Laurent Gernigon, Geoffroy Mohn, Charlotte NIELSEN, Jean-Claude, Raymond Ringenbach
| Tue, 09 Apr, 08:30–10:15, 10:45–12:30
Room K1
| Attendance Wed, 10 Apr, 10:45–12:30
Hall X2

Tuesday, 9 April 2019 | Room K1

Chairperson: Geoffroy Mohn, Charlotte Nielsen
08:30–08:45 |
Laurent Geoffroy, François Chauvet, Jean-Claude Ringenbach, and Frank Despinois
08:45–09:00 |
The along strike variability of the Gabon OCT: insights from 3D seismic observations
Marie-Eva Epin, François Sapin, Thomas Maurin, Etienne Legeay, and Frank Despinois
09:00–09:15 |
Michael Nirrengarten, Geoffroy Mohn, Nick Kusznir, Frank Despinois, Manuel Pubellier, and Sung-Ping Chang
09:15–09:30 |
| Highlight
Charlotte Ribes, Gianreto Manatschal, and Jean-François Ghienne
09:30–09:45 |
Camille Clerc, Francois Sapin, Emmanuel Masini, and Jean-Claude Ringenbach
09:45–10:00 |
| Highlight
Haakon Fossen, Isabelle Lecomte, Thilo Wrona, Christian Haug Eide, Robert Gawthorpe, and Carolina Cavalcante
10:00–10:15 |
Emmanuel Masini, Julie Tugend, Maxime Ducoux, Julia Gomez-Romeu, Philip Ball, Mary Ford, Geoffroy Mohn, Jean-Claude Ringenbach, and Sylvain Calassou
Coffee break
Chairperson: Geoffroy Mohn, Jean-Claude Ringenbach
10:45–11:00 |
Maxime Ducoux, Emmanuel Masini, Julie Tugend, Magali Collin, and Sylvain Calassou
11:00–11:15 |
Mario Araujo, Marta Pérez-Gussinyé, and Miguel Andrés-Martínes
11:30–11:45 |
Melanie Louterbach, Álvaro Piña Tejeda, Gonzalo Zamora, Rubén Loma Villacorta, and Hugo Matías
11:45–12:00 |
Agnes Maillard, Laurent Jolivet, Isabelle Thinon, Johanna Lofi, Renaud Coueffé, and Albane Canva
12:00–12:15 |
Laetitia Le Pourhiet, Anthony Jourdon, and Julie Tugend
12:15–12:30 |
| Highlight
Sascha Brune, Simon Williams, Philip Ball, and Dietmar Müller