Active rifting is currently occurring in Antarctica
Geological and geophysical evidence confirms that active rifting, crustal thinning, and associated magmatism continue to occur within the West Antarctic Rift System and adjacent margins.
The retrieved papers provide strong, contemporary geophysical and tectonic evidence that the West Antarctic Rift System and related structures (such as the Terror Rift and offshore northern Victoria Land) experience ongoing Cenozoic extension, magmatism, and faulting. There are no papers refuting active rifting.
Granot R, Dyment J. Late Cenozoic unification of East and West Antarctica.. 2018. https://doi.org/10.1038/s41467-018-05270-w
Paper 1 discusses tectono-volcanic activity within the West Antarctic rift system and its Neogene kinematic evolution.
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Jordan TA, Thompson S, Kulessa B, Ferraccioli F. Geological sketch map and implications for ice flow of Thwaites Glacier, West Antarctica, from integrated aerogeophysical observations.. 2023. https://doi.org/10.1126/sciadv.adf2639
Paper 2 places Thwaites Glacier directly within the active West Antarctic Rift System.
Mukherjee P, Ito Y, Borah K, Garcia ES, Bora DK. Crustal Structure and Magmatic System of Mount Erebus in Antarctica constrained by Receiver Functions and Seismic Velocity Analysis.. 2026. https://doi.org/10.1038/s41598-026-48866-9
Paper 6 links Mount Erebus and the Terror Rift to long-lived lithospheric extension and active crustal magmatism.
Civile D, Crispini L, Ruppel A, Ferrante GM, Morelli D, Accettella D, Accaino F, Locatelli M, Volpi V, Busetti M, Armadillo E, Läufer A. Discovery of Cenozoic magmatic ridges and tectonics off northern Victoria Land provides new insights into the geodynamics of the Antarctic margin.. 2025. https://doi.org/10.1038/s41598-025-06739-7
Paper 7 reports the discovery of Pliocene-Quaternary active submarine magmatic ridges and crustal thinning associated with ongoing tectonic deformation off northern Victoria Land.
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