Mantle plumes and their role in Earth processes
The existence of mantle plumes was first proposed in the 1970s to explain intra-plate,
hotspot volcanism, yet owing to difficulties in resolving mantle upwellings with geophysical …
hotspot volcanism, yet owing to difficulties in resolving mantle upwellings with geophysical …
Earth's mantle composition revealed by mantle plumes
Mantle plumes originate at depths near the core− mantle boundary (~ 2,800 km). As such,
they provide invaluable information about the composition of the deep mantle and insight …
they provide invaluable information about the composition of the deep mantle and insight …
Broad plumes rooted at the base of the Earth's mantle beneath major hotspots
SW French, B Romanowicz - Nature, 2015 - nature.com
Plumes of hot upwelling rock rooted in the deep mantle have been proposed as a possible
origin of hotspot volcanoes, but this idea is the subject of vigorous debate,. On the basis of …
origin of hotspot volcanoes, but this idea is the subject of vigorous debate,. On the basis of …
A tree of Indo-African mantle plumes imaged by seismic tomography
Mantle plumes were conceived as thin, vertical conduits in which buoyant, hot rock from the
lowermost mantle rises to Earth's surface, manifesting as hotspot-type volcanism far from …
lowermost mantle rises to Earth's surface, manifesting as hotspot-type volcanism far from …
Petrological evidence for secular cooling in mantle plumes
C Herzberg, E Gazel - Nature, 2009 - nature.com
Geological mapping and geochronological studies have shown much lower eruption rates
for ocean island basalts (OIBs) in comparison with those of lavas from large igneous …
for ocean island basalts (OIBs) in comparison with those of lavas from large igneous …
Teleseismic imaging of the mantle beneath southernmost China: New insights into the Hainan plume
Intraplate volcanism during the Late Cenozoic in the Leiqiong area of southernmost China,
with basaltic lava flows covering a total of more than 7000 km 2, has been attributed to an …
with basaltic lava flows covering a total of more than 7000 km 2, has been attributed to an …
Joint seismic–geodynamic-mineral physical modelling of African geodynamics: A reconciliation of deep-mantle convection with surface geophysical constraints
Recent progress in seismic tomography provides the first complete 3-D images of the
combined thermal and chemical anomalies that characterise the unique deep-mantle …
combined thermal and chemical anomalies that characterise the unique deep-mantle …
Crustal evolution, intra-cratonic architecture and the metallogeny of an Archaean craton
The generation of the Earth's continental crust modified the composition of the mantle and
provided a stable, buoyant reservoir capable of capturing mantle material and ultimately …
provided a stable, buoyant reservoir capable of capturing mantle material and ultimately …
Deflating the LLSVPs: bundles of mantle thermochemical plumes rather than thick stagnant “piles”
A Davaille, B Romanowicz - Tectonics, 2020 - Wiley Online Library
Based on SEMUCB‐WM1 tomographic model, validated by other recent models, and fluid
mechanics constraints, we show that the large low shear velocity provinces (LLSVPs) …
mechanics constraints, we show that the large low shear velocity provinces (LLSVPs) …
Chemical geodynamics insights from a machine learning approach
The radiogenic isotope heterogeneity of oceanic basalts is often assessed using 2D isotope
ratio diagrams. But because the underlying data are at least six dimensional (87Sr/86Sr …
ratio diagrams. But because the underlying data are at least six dimensional (87Sr/86Sr …