Rifted margins classification and forcing parameters

Rifted margins are the result of the successful process of thinning and breakup of the continental lithosphere leading to the formation of new oceanic lithosphere. Observations on rifted margins are now integrating an increasing amount of multi-channel seismic data and drilling of several Continent-...

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Bibliographic Details
Published in:Scientific reports 2021-04, Vol.11 (1), p.8199-8199, Article 8199
Main Authors: Sapin, F., Ringenbach, J.-C., Clerc, C.
Format: Article
Language:English
Subjects:
704/2151/210
704/2151/213
704/2151/2809
704/2151/562
Classification
Drilling
Humanities and Social Sciences
Lithosphere
Magma
Mechanical properties
multidisciplinary
Rifting
Science
Science (multidisciplinary)
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Summary:Rifted margins are the result of the successful process of thinning and breakup of the continental lithosphere leading to the formation of new oceanic lithosphere. Observations on rifted margins are now integrating an increasing amount of multi-channel seismic data and drilling of several Continent-Ocean Transitions. Based on large scale geometries and domains observed on high-quality multi-channel seismic data, this article proposes a classification reflecting the mechanical behavior of the crust from localized to diffuse deformation (strong/coupled to weak/decoupled mechanical behaviors) and magmatic intensity leading to breakup from magma-rich to magma-poor margins. We illustrate a simple classification based on mechanical behavior and magmatic production with examples of rifted margins. We propose a non-exhaustive list of forcing parameters that can control the initial rifting conditions but also their evolution through time. Therefore, rifted margins are not divided into opposing types, but described as a combination and continuum that can evolve through time and space.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-021-87648-3