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 …

Lithospheric structure of the Malawi Rift: Implications for magma‐poor rifting processes

EA N**ju, EA Atekwana, DS Stamps… - …, 2019 - Wiley Online Library
Our understanding of how magma‐poor rifts accommodate strain remains limited largely
due to sparse geophysical observations from these rift systems. To better understand the …

Kinematics of active deformation in the Malawi rift and Rungwe Volcanic Province, Africa

CJ Ebinger, SJ Oliva, TQ Pham… - Geochemistry …, 2019 - Wiley Online Library
Although the deep, wide basins of the Western rift, Africa, have served as analogues for the
evolution of half‐graben basins, the geometry and kinematics of the border, intrabasinal …

Diamondiferous lamproites of the Luangwa Rift in central Africa and links to remobilized cratonic lithosphere

NS Ngwenya, S Tappe - Chemical Geology, 2021 - Elsevier
Mesozoic diamondiferous lamproite pipes occur along the Kapamba River within the
Luangwa Valley of eastern Zambia, which is a ca. 300–200 Ma old Karoo-age precursor …

Rift evolution in regions of low magma input in East Africa

JD Muirhead, LJM Wright, CA Scholz - Earth and Planetary Science Letters, 2019 - Elsevier
Magmatism is often invoked as critical for assisting strain focusing during continental rift
development, and in driving lithospheric thinning and continental rupture. Accordingly …

Development of the Nyika Plateau, Malawi: A long lived paleo‐surface or a contemporary feature of the East African Rift?

MF McMillan, SC Boone, BP Kohn… - Geochemistry …, 2022 - Wiley Online Library
Abstract Northern Malawi's Nyika Plateau is a 3,700 km2 large, highly elevated (∼ 2,500 m)
plateau located at the western margin of the Miocene‐Recent Malawi rift and the confluence …

Imaging Precambrian lithospheric structure in Zambia using electromagnetic methods

E Sarafian, RL Evans, MG Abdelsalam, E Atekwana… - Gondwana …, 2018 - Elsevier
The Precambrian geology of eastern Zambia and Malawi is highly complex due to multiple
episodes of rifting and collision, particularly during the formation of Greater Gondwana as a …

Seismic evidence for plume‐and craton‐influenced upper mantle structure beneath the northern Malawi Rift and the Rungwe Volcanic Province, East Africa

A Grijalva, AA Nyblade, K Homman… - Geochemistry …, 2018 - Wiley Online Library
P and S wave tomographic models have been developed for the northern Malawi rift and
adjacent Rungwe Volcanic Province (RVP) using data from the Study of Extension and …

Surface wave imaging of the weakly extended Malawi Rift from ambient-noise and teleseismic Rayleigh waves from onshore and lake-bottom seismometers

NJ Accardo, JB Gaherty, DJ Shillington… - Geophysical Journal …, 2017 - academic.oup.com
Located at the southernmost sector of the Western Branch of the East African Rift System,
the Malawi Rift exemplifies an active, magma-poor, weakly extended continental rift. To …

Thermochemical modification of the upper mantle beneath the northern Malawi Rift constrained from shear velocity imaging

NJ Accardo, JB Gaherty, DJ Shillington… - Geochemistry …, 2020 - Wiley Online Library
To investigate the controls on continental rifting in the western branch of the East Africa Rift
System, we conduct shear velocity imaging of the crust and uppermost mantle beneath the …