Geodynamics of continental rift initiation and evolution

S Brune, F Kolawole, JA Olive, DS Stamps… - Nature Reviews Earth & …, 2023 - nature.com
A continental rift is a nascent plate boundary where the lithosphere is thinned by tectonic
activity. Some continental rifts undergo extension to the point that they generate a new …

Volcanic activity and hazard in the East African Rift Zone

J Biggs, A Ayele, TP Fischer, K Fontijn… - Nature …, 2021 - nature.com
Over the past two decades, multidisciplinary studies have unearthed a rich history of
volcanic activity and unrest in the densely-populated East African Rift System, providing new …

Magma plumbing systems: a geophysical perspective

C Magee, CTE Stevenson, SK Ebmeier… - Journal of …, 2018 - academic.oup.com
Over the last few decades, significant advances in using geophysical techniques to image
the structure of magma plumbing systems have enabled the identification of zones of melt …

Displaced cratonic mantle concentrates deep carbon during continental rifting

JD Muirhead, TP Fischer, SJ Oliva, A Laizer, J van Wijk… - Nature, 2020 - nature.com
Continental rifts are important sources of mantle carbon dioxide (CO2) emission into Earth's
atmosphere,–. Because deep carbon is stored for long periods in the lithospheric mantle …

Geodetic constraints on cratonic microplates and broad strain during rifting of thick Southern African lithosphere

LNJ Wedmore, J Biggs, M Floyd… - Geophysical …, 2021 - Wiley Online Library
Southern Africa is typically considered to belong to a single tectonic plate, Nubia, despite
active faulting along the southwestern branch of the East African Rift System. We analyze …

Upper mantle Earth structure in Africa from full‐wave ambient noise tomography

EL Emry, Y Shen, AA Nyblade… - Geochemistry …, 2019 - Wiley Online Library
Our understanding of the tectonic development of the African continent and the interplay
between its geological provinces is hindered by unevenly distributed seismic …

AFRP20: New P‐Wavespeed Model for the African Mantle Reveals Two Whole‐Mantle Plumes Below East Africa and Neoproterozoic Modification of the Tanzania …

A Boyce, ID Bastow, S Cottaar… - Geochemistry …, 2021 - Wiley Online Library
Africa's Cenozoic tectonism is often attributed to mantle plumes, particularly below East
Africa, but their morphology, number, location, and impact on the African lithosphere are …

Tectonics and landscape of the Central African Plateau and their implications for a propagating Southwestern Rift in Africa

MC Daly, P Green, AB Watts, O Davies… - Geochemistry …, 2020 - Wiley Online Library
Abstract The Central African Plateau (CAP) covers a million square kilometers of African
lithosphere absent of recent volcanism and intense seismicity. Treating the CAP erosion …

Depth extent and kinematics of faulting in the southern Tanganyika rift, Africa

A Lavayssière, C Drooff, C Ebinger, R Gallacher… - …, 2019 - Wiley Online Library
Unusually deep earthquakes occur beneath rift segments with and without surface
expressions of magmatism in the East African Rift system. The Tanganyika rift is part of the …

A reappraisal of the H–κ stacking technique: implications for global crustal structure

CS Ogden, ID Bastow, A Gilligan… - Geophysical Journal …, 2019 - academic.oup.com
SUMMARY H–κ stacking is used routinely to infer crustal thickness and bulk-crustal VP/VS
ratio from teleseismic receiver functions. The method assumes that the largest amplitude P …