Around 180 million years ago, the Atlantic Ocean emerged as the Pangea super continent split, but it is anticipated to eventually close. A recent study delves into the intricate process of ocean closure, highlighting subduction zones as a key mechanism.
Researchers from the University of Lisbon utilized advanced computational models to forecast the evolution of a subduction zone beneath the Gibraltar Strait. This subduction zone is projected to extend deeper into the Atlantic Ocean, forming an “Atlantic ring of fire.”
Geologically, this transformative event is expected to unfold relatively soon, within the next 20 million years. João Duarte, the study’s lead author, emphasizes the significance of studying the Gibraltar subduction zone in its early stages.
The study introduces the concept of “subduction invasion,” where declining ocean subduction zones migrate into new, untouched oceans. The 3D model provides insights into this process, previously unknown.
Duarte highlights the three-dimensional nature of subduction invasion and its contribution to the geological evolution of our planet. The continuous activity in the Gibraltar subduction zone underscores the seismic hazards in the region, emphasizing the importance of preparedness for potential earthquakes.
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