Fact-checked by Grok 2 weeks ago
References
-
[1]
[PDF] The African Plate - Earth DynamicsJun 7, 2013 · These plate boundaries were used in defining the outlines of main tectonic blocks that moved during the opening of various oceanic basins ...
-
[2]
African Plate - an overview | ScienceDirect TopicsThe region discussed here is bounded to the west by the Atlantic, to the north by the Mediterranean Sea, to the east by the Arabian Plate and to the south by ...
-
[3]
Understanding plate motions [This Dynamic Earth, USGS]Jul 11, 2025 · Divergent boundaries occur along spreading centers where plates are moving apart and new crust is created by magma pushing up from the mantle.
-
[4]
[PDF] Present-day kinematics of the East African RiftMar 20, 2014 · We select sites with at least 2.5 years of observation and velocity uncertainties lower than 1.5 mm/yr. We compute the Nubia angular velocity ...<|control11|><|separator|>
-
[5]
Africa—Tectonic Setting and Earthquake History - IRISThe African Plate is a major tectonic plate straddling the Equator as well as the prime meridian. It includes much of the continent of Africa.Missing: geology | Show results with:geology
- [6]
- [7]
-
[8]
New insights into the crust and lithospheric mantle structure of Africa ...Jun 24, 2016 · We present new crust and lithosphere thickness maps of the African mainland based on integrated modeling of elevation and geoid data and thermal analysis.
-
[9]
African upper mantle and its relationship to tectonics and surface ...The lithosphere is thin beneath the Pan-African terranes of northern Africa but appears to be thicker beneath the Pan-African Damara Belt in southern Africa.3 The Tomographic Model · 5 Mantle Temperature And... · 6.1 The Cratons<|control11|><|separator|>
-
[10]
The geodynamic setting of the Phanerozoic basins of AfricaThe present African plate occupied a relatively central position in Gondwana, with only the north-westernmost (Rif-Tell/Atlas) and southernmost (Cape Fold Belt) ...Missing: cycles | Show results with:cycles
-
[11]
The role of megacontinents in the supercontinent cycle | GeologyNov 25, 2020 · Here we demonstrate that the past three cycles of supercontinent amalgamation were each preceded by ∼200 my by the assembly of a megacontinent akin to Gondwana.
-
[12]
Nubia–Arabia–Eurasia plate motions and the dynamics of ...We use geodetic and plate tectonic observations to constrain the tectonic evolution of the Nubia–Arabia–Eurasia plate system.
-
[13]
Dynamics of the African Plate 75 Ma: From Plate Kinematic ...Jul 7, 2021 · Geometry of African plate boundaries and velocities 75 Ma. Both relative velocities (vrel) of the surrounding plates with respect to Africa ...
-
[14]
Why is Africa rifting? | Geological Society, London, Special ...African plate dynamics have a more significant contribution from ... The Afar Depression: transition between continental rifting and sea-floor spreading.Driving Forces Of Rifting · Radial Tractions And... · Geophysical Signature Of...
-
[15]
African cratonic lithosphere carved by mantle plumes - PMCJan 3, 2020 · The African continent is composed primarily of Precambrian terranes, assembled in the Late Neoproterozoic-Early Paleozoic Pan-African orogeny.
-
[16]
None### Summary of Congo Craton Formation, Archean Nuclei, and Assembly Around 2.1 Ga
-
[17]
Felsic crust development in the Kaapvaal Craton, South AfricaThe crust of the Kaapvaal craton accreted throughout the Archaean over nearly 1 billion years. It provides a unique example of the various geological ...
-
[18]
Reassessment of Archean crustal development in the Barberton ...This paper presents U-Pb ages for 23 samples from the Barberton Mountain Land, an Archean granite-greenstone terrain in the Kaapvaal craton of South Africa.
-
[19]
[PDF] Accretion and stabilisation of the Archaean Zimbabwe Craton ...The evolution of the Zimbabwe Craton involved a num- ber of crustal formation events. Each of these com- prised the emplacement of a greenstone sequence and.
-
[20]
Crustal structure of Precambrian terranes in the southern African ...May 18, 2015 · The Kaapvaal Craton is a conglomerate of several terranes and predominantly consists of granitoids with gneisses and narrow greenstone belts ...
-
[21]
Lithospheric structure of an Archean craton and adjacent mobile belt ...Jun 25, 2013 · Major Archean cratonic segments (Kaapvaal and Congo) are delineated from Proterozoic (Rehoboth Terraine) and Neoproterozoic (Damara belt) ...
-
[22]
Geochronology of the central Tanzania Craton and its southern and ...The Neoarchaean geochronology of the central Tanzania Craton (Singida and Dodoma blocks) is essentially the same, suggesting that they form a contiguous part of ...
-
[23]
[PDF] Geochronology of the central Tanzania Craton and its southern and ...The aim of this paper is to outline the findings of the new geological mapping within and around the. Tanzania Craton, to present the new geochronological data, ...
-
[24]
Review of Paleoproterozoic tectonics in the southern West African ...Jun 15, 2025 · The West African Craton (WAC), as defined by Kennedy (1964), consists of two Archean nuclei in the north-western and south-western parts of the ...
-
[25]
The boundaries of the West African craton, with special reference to ...The West African craton (WAC) is composed of three Archaean and Palaeoproterozoic metamorphic and magmatic shields separated by two cratonic sedimentary basins ...
-
[26]
None### Summary of Pan-African Orogeny Timing and Role in Assembling Gondwana for African Cratons
-
[27]
Tectonic trigger to the first major extinction of the PhanerozoicMar 29, 2024 · The orogenic assembly of Gondwana was largely concluded by ~540 to 530 Ma, although some deformation and metamorphism continued afterward (48).
-
[28]
Thermochronological insights into reactivation of a continental shear ...Nov 9, 2018 · Time sequence map showing the evolution of Gondwana break-up in the Atlantic ocean. (a) The evolution of Gondawana break-up between 150 Ma ...
-
[29]
[PDF] Break-up of Gondwana and opening of the South AtlanticThe timing of final Gondwanide break- up is constrained by seafloor magnetic anomalies and the rotation poles derived from them. The opening of the SW. Weddell ...
- [30]
-
[31]
None### Timing of East African Rift Initiation (Western Branch)
-
[32]
Geologic and geochronologic constraints on the evolution of the ...The new age data indicate that the initiation of the Aden and Red Sea rifts was not accompanied by active volcanism on land until the Oligocene-Miocene (30-5 Ma ...
-
[33]
Mid-Atlantic Ridge - Plate Margins - The Geological SocietyThe Ridge extends into the South Atlantic Ocean between the South American and African Plates. The ocean ridge rises to between 2 to 3 km above the ocean floor, ...
-
[34]
What is a mid-ocean ridge? - NOAA Ocean ExplorationJul 8, 2014 · The Mid-Atlantic Ridge runs down the center of the Atlantic Ocean, slowly spreading at a rate of 2 to 5 centimeters (0.8 to 2 inches) per year ...Missing: African | Show results with:African
-
[35]
Transform migration and vertical tectonics at the Romanche fracture ...Nov 10, 1994 · The Romanche transform offsets the Mid-Atlantic Ridge (MAR) axis by about 950 km in the equatorial Atlantic. Multibeam and high-resolution ...
-
[36]
High resolution reconstructions of the Southwest Indian Ridge, 52 ...The Southwest Indian Ridge (hereafter SWIR) has accommodated motion between the Africa and Antarctic plates since the breakup of Gondwanaland at 160 Ma (Lawver ...
-
[37]
Spreading rate, spreading obliquity, and melt supply at the ultraslow ...Apr 1, 2008 · We use bathymetry, gravimetry, and basalt composition to examine the relationship between spreading rate, spreading obliquity, ...
-
[38]
Current plate motions across the Red Sea - Oxford AcademicThe fastest spreading rate, ≈16 mm yr−1, occurs near 18°N, whereas the slowest rate, 10 mm yr−1, occurs at 25.5°N and is consistent with the rate predicted from ...
-
[39]
Present‐day kinematics of the East African Rift - AGU Journals - WileyMar 20, 2014 · The current kinematics of this ~5000 km long divergent plate boundary between the Nubia and Somalia plates is starting to be unraveled.Missing: intraplate | Show results with:intraplate
-
[40]
Elastic Fault Interactions and Earthquake Rupture Along the ...Jun 9, 2020 · These deficits account for ~15% and ~20% of the total African-Eurasian convergence-rate (~35 mm/yr), which is consistent with the <20% locking ...
-
[41]
Decoupled crust‐mantle accommodation of Africa‐Eurasia ...Aug 16, 2011 · The convergence rate between the African and European plates on the NW Moroccan margin is ∼3.5 mm yr−1 in a WNW direction, predicted from ...
-
[42]
A case study of the High Atlas range - ScienceDirectNov 15, 2024 · This, together with the arid to semi-arid climatic conditions and slow convergence rates (5 mm/yr) (Koulali et al., 2011), supports moderate ...
-
[43]
tectonic development of the Central African Plateau: evidence from ...The shear zone's tectonic evolution is poorly known but it is assumed to be a plate-scale sinistral shear zone that experienced up to 200 km of horizontal ...
-
[44]
Arabia‐Somalia plate kinematics, evolution of the Aden‐Owen ...Apr 15, 2010 · AR, Arabian plate; FZ, fracture zone ... Before Chron 5, the Owen fracture zone was probably connected directly to the Owen transform fault.
-
[45]
The lithospheric architecture of Africa: Seismic tomography, mantle ...Feb 1, 2009 · The cratonic margins, and some intracratonic domain boundaries, have played a major role in the tectonics of Africa.
-
[46]
Crystalline Basement of the West African Craton - Semantic ScholarThe West African craton is a very extensive portion of Precambrian crust (~4500000 km2), stable since 1700 Ma ago, bounded on all sides by more recent ...
-
[47]
Origins of Birimian (ca 2.2 Ga) mafic magmatism and the ...Oct 21, 2013 · The Birimian of the West African Craton is an important repository of Paleoproterozoic mafic magmatism, described by many workers as ...Missing: size | Show results with:size
-
[48]
A review of the Intraplate Mafic Magmatic Record of the Greater ...The intraplate record of the Greater Congo craton (GCC) in central-eastern Africa remains largely poorly constrained. Ninety-seven events are currently ...<|control11|><|separator|>
-
[49]
Age of the granulitic metamorphism of the Nyong complex in the ...Aug 28, 2025 · Along the northern margin of the Congo Craton, the Yaoundé HP granulitic metamorphic facies forms the core of the Pan-African nappe thrust onto ...
-
[50]
(PDF) Age of the granulitic metamorphism of the Nyong complex in ...Sep 28, 2025 · The purpose of this work is to constrain P-T conditions and age to provide criteria for geodynamic models. The study area is made up of ...
-
[51]
Geological overview of the Mozambique belt and adjacent units in...The occurrences of the northern Archean anorthosites are where the present Archean Tanzania Craton juxtaposes against Neoproterozoic Mozambique Belt. Hence ...
-
[52]
Major influences on the evolution of the 2.67-2.1 Ga Transvaal basin ...Aug 7, 2025 · The Transvaal is one of three structural basins of the Transvaal Supergroup preserved on the Kaapvaal craton. The evolution of the ...
-
[53]
[PDF] Kimberlite-hosted diamond deposits of southern AfricaThe pipe intruded rocks of the Transvaal Supergroup as well as igneous rocks of the Bushveld Igneous Complex. The kimberlite has been radiometrically dated ...
-
[54]
[PDF] Geology and Petroleum Resource Assessment of Onshore ...Taoudeni Basin. The Taoudeni intracratonic basin has a total area of approximately 1,300,000 km2 (500,000 mi2), with a total volume of Phanerozoic sedimentary ...
-
[55]
[PDF] Petroleum Geology Of LibyaJul 31, 2025 · Murzuq Basin: This southern basin is a large intracratonic depression with thick. Paleozoic to Mesozoic sedimentary sequences. Although less ...
-
[56]
[PDF] Taphonomic Trends of Macrofloral Assemblages Across the ...In total, a rock se- quence with a maximum thickness of 12 km accumulated within the basin (the Karoo Supergroup), providing for one of the few continuous ...
-
[57]
[PDF] Tectonic Summaries of Magnitude 7 and Greater Earthquakes from ...Dec 7, 2015 · The East African Rift system (EARS) is a 3,000-km-long Cenozoic-age continental rift extending from the Afar triple junc- tion, between the ...
-
[58]
[PDF] by (1982) (1986) LL~L - DSpace@MITMay 5, 1988 · The Western rift, the western branch of the East African rift system, comprises a series of discrete half-graben that are bounded along one ...
-
[59]
ethiopian rift valley: Topics by Science.govThe extension is restricted to the Quaternary volcanotectonic axis of the rift, namely the Wonji fault belt, and is occurring at rates of 3 to 6 mm/yr in the ...
-
[60]
[PDF] ETHIOPIAN RIFT AND PLATEAUS: SOME VOLCANIC ... - CORE1. The rift basalts may have higher Si, Fe, Ca, and Na/K and lower Al, K, and Mg/Fe.
-
[61]
Isotopic and geochemical evidence for a heterogeneous mantle ...Virunga volcanics in the western rift of the East African Rift system (EARS) show silica-undersaturated, ultra-alkaline, alkalic-mafic compositions.
-
[62]
The relative motion between Africa and Eurasia as derived from ...Aug 16, 2003 · Figure 2 shows the relative angular velocity and motion of Africa with respect to Eurasia along their boundary as predicted by DEOS2k and NUVEL ...Introduction · Data · Africa and Eurasia Motion in... · Africa-Eurasia Relative Motion
-
[63]
GPS constraints on Africa (Nubia) and Arabia plate motions1). The WRMS GPS velocity residuals for Nubia, Arabia and Eurasia are 0.6, 0.8 and 0.6 mm yr−1, respectively.
-
[64]
A new velocity field for Africa from combined GPS and DORIS space ...Mar 4, 2013 · This study provides the first continent-wide position/velocity solution for Africa, expressed in International Terrestrial Reference Frame (ITRF2008).
-
[65]
[PDF] GPS constraints on continental deformation in the Africa-Arabia... GPS-derived plate velocities (mm/yr) relative to Eurasia. Curved arrows show sense of block rotation relative to. Eurasia. Dark, heavy arrows show ...
-
[66]
The Mid-Atlantic Ridge between 29°N and 31°30′N in the last 10 MaRelative plate motion changes over the last 10 Ma in our survey area have included a decrease in spreading rate from ∼ 32 mm a−1 to ∼ 24 mm a−1, as well as a ...
-
[67]
[PDF] 21. TECTONIC EVOLUTION OF THE ATLANTIS II FRACTURE ZONE1Ridge spreading axis indicate a total Africa-Antarctica spreading rate of ~16 km m.y.~1. ... total spreading rate of 1.6 cm/yr for the Southwest Indian. Ridge ( ...
-
[68]
The Electrical Structure of the Central Main Ethiopian Rift as Imaged ...Jun 9, 2018 · The extension rate of about 6 mm/year in the CMER (Kogan et al., 2012) is accompanied by a moderate number of smaller earthquakes (ML< 3 ...
-
[69]
Volcanism records plate thinning driven rift localization in Afar ...May 21, 2025 · ... rate of 26.7 ± 2.3 mm/year, considerably faster than the half extension rate in Central Afar of ~10 mm/year. On the SW side of the Tendaho ...Missing: length branches
-
[70]
Persisting influence of continental inheritance on early oceanic ...Mar 25, 2025 · Rifting would have been extremely asymmetric around 19–20°N and 24–25°N, thereby shifting the area of maximum lithospheric thinning towards the ...
-
[71]
Mantle upwelling at Afar triple junction shaped by overriding plate ...Jun 25, 2025 · Afar, East Africa, is a classic triple junction comprising three rifts at various stages of evolution thought to be underlain by a mantle upwelling or plume.
-
[72]
A Global Plate Model Including Lithospheric Deformation Along ...May 5, 2019 · ... 1 cm/year. During the Cenozoic, most boundaries of rapid trench ... We implement the East African Rift following the rigid plate model of ...
-
[73]
We detected deep pulses beneath Africa—what we learned could ...Jul 20, 2025 · The three rifts in Afar are spreading at different rates. The Red Sea Rift and Gulf of Aden Rift are moving faster at about 15mm per year ...
-
[74]
(PDF) Constraining the Kinematics of the Victoria Microplate and the ...Oct 30, 2025 · This study examines part of the African continent to investigate how the Victoria microplate moves relative to the Nubian plate and examines ...<|control11|><|separator|>
-
[75]
The East African Rift System - Rooney - 2025 - AGU Journals - WileyApr 11, 2025 · The East African Rift System (EARS) is the iconic continental rift and is now recognized as a profoundly interconnected system, ...
-
[76]
The April 2017 Mw6.5 Botswana Earthquake: An Intraplate Event ...Jul 13, 2018 · The 2017 M w 6.5, Bostwana normal faulting earthquake occurred in a region devoid from recent tectonic activity and where present-day deformation is negligible.
-
[77]
M 5.6 - 29 km NE of ?d?grat, Ethiopia - Earthquake Hazards ProgramSeismicity in the East Africa Rift is widespread, but displays a distinct pattern. Seismicity is characterized by mainly shallow (< 40 km) normal faults ( ...
-
[78]
Tectonics of the Mw 6.8 Al Haouz earthquake (Morocco) reveals ...Nov 21, 2024 · The Moroccan High Atlas is a doubly vergent intracontinental orogenic belt formed during Cenozoic convergence between the African and Eurasian ...
-
[79]
M 5.9 - 2 km WNW of Agadir, Morocco - Earthquake Hazards ProgramAn estimated 12,000 to 15,000 people were killed and 25,000 were injured by this earthquake. Over one-third of the population of Agadir was killed and at ...
-
[80]
Full article: Seismicity pattern of African regions from 1964–2022Apr 9, 2023 · African plate · subduction zone · Previous article View issue table of contents Next article. 1. Tectonics of African continent ... stable ...
-
[81]
Africa and the Red Sea Earthquakes Archive: Past Quakes in 2024In 2024, Africa and the Red Sea has had 2,917 quakes of magnitudes up to 5.9: 38 quakes above magnitude 5; 290 quakes between magnitude 4 and 5; 225 quakes ...
-
[82]
Evidence for Incipient Rifting in Southern Africa - ResearchGateOkavango since a seismic swarm occurred there in 1952 to 1954, and which included. two events of magnitude greater than. 6. (Cane. &. Oliver 1953; Oliver 1956) ...
-
[83]
Volcanic activity and hazard in the East African Rift Zone - NatureNov 25, 2021 · Tectonic activity in East Africa is often attributed to the presence of mantle upwellings at various scales, but the number and depth extent of ...
-
[84]
Geochemistry of East African Rift basalts: An overview - ScienceDirectThe two plume sources may both be derived from the South African Superplume, which is likely to be a compositionally heterogeneous feature of the lower mantle.
-
[85]
Ol Doinyo Lengai - Global Volcanism ProgramThe current eruption period began in April 2017 and recently has consisted of ongoing thermal activity in the summit crater (BGVN 48:03). This report covers ...
-
[86]
[PDF] Geologic Map of Oldonyo Lengai (Oldoinyo Lengai) Volcano and ...Jan 9, 2014 · active since at least 500,000 years ago. This interpretation ... sequence of the East African Rift escarpment in the Oldoinyo. Lengai ...
-
[87]
Erta Ale - Global Volcanism ProgramEach pit crater harbors an active lava lake. During October 2021-November 2022, thermal anomalies at the S crater were almost persistent, while activity in the ...
-
[88]
Erta Ale Volcano (Ethiopia): Dramatic Changes to Caldera and new ...Erta Ale volcano (Ethiopia): dramatic changes to caldera and new lava flow. Fri, 18 Jul 2025, 07:30 | BY: MARTIN. The timelapse combining Sentinel-1 and ...
-
[89]
The Mount Cameroon southwest flank eruptions - ScienceDirect.comIn recent times (since the 20th century), there have been seven significant eruptions at Mount Cameroon, making it one of the most active volcanoes in Africa ( ...
-
[90]
Cameroon - Global Volcanism ProgramMt. Cameroon began erupting during the night of 28 May 2000. On 29 May, following a violent explosion, red-tinged fumaroles were observed at an elevation of 3, ...
-
[91]
Karthala - Global Volcanism ProgramThe volcano is one of the largest volcanoes in activity in the world. Over the last two hundred years, it has erupted every eleven years on average.
-
[92]
The northwestern Ethiopian Plateau flood basalts - ScienceDirect.comIn Ethiopia, this huge volume of lavas (about 350,000 km3) which forms a pile up to 2,000 m thick, and covers more than 600,000 km2 (Mohr and Zanettin, 1988) ...
-
[93]
Volcanoes, Eruptions and Earthquakes in Africa and the Red SeaAt least 31 volcanoes have been active in Africa and the Red Sea, including Nyamuragira, Ol Doinyo Lengai, and Jebel Zubair volcanoes.
-
[94]
Nyamulagira/Nyiragongo, 2024/2025 (Oct. 7, 2025, 1349 UTC)Nov 3, 2024 · TROPOMI SO2 continues to detect respectable amounts of sulfur emissions from both volcanoes. It would be nice if DRC and Rwanda could ...