Скачать или смотреть InterRidge 2022 11 webinar by Marcia Maia

InterRidge 2022 Webinar Series - Earth Science, Life Science and Our Future

-Title: Evolution and intra-transform spreading processes of the St. Paul transform system, equatorial Atlantic
-Lecturer: Marcia Maia (CNRS Senior Researcher at Laboratoire Geo-Ocean, CNRS-UBO-IFREMER-UBSInstitut Universitaire Européen de la Mer, Plouzané, France)
-Day: 30th November, 2022

Oceanic transform faults are among the less well-known features of the ocean floor. In the recent years, much has been done to understand their thermo-mechanical structure and the deformation associated with local and far field stresses. Among these features, complex multi-fault systems, where very short spreading segments are offset by large transform faults, are most interesting, especially those at slow spreading ridges, where transform faults are supposed to be cold geological settings. Studying such systems can bring new information on the relative roles of the mantle and the lithosphere on the spreading processes and on the origin and evolution of large offset transform faults. Here, I will present work done on the multi-fault system of St. Paul in the slow spreading Equatorial Mid-Atlantic ridge. The evolution of such intra-transform spreading systems raises the question of how cold transform faults are and of their effect on the spreading processes


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