Results 111 to 120 of about 120,010 (213)

Ultra‐Low Velocity Zone Beneath the Atlantic Near St. Helena

Geochemistry, Geophysics, Geosystems
There are various hotspots in the Atlantic Ocean, which are underlain by mantle plumes that likely cross the mantle and originate at the core‐mantle boundary. We use teleseismic core‐diffracted shear waves to look for an Ultra‐Low Velocity Zone (ULVZ) at
Sefira Davison, Carl Martin, Rita Parai, Sanne Cottaar   +3 more
doaj   +1 more source

Mantle plumes? [PDF]

Astronomy and Geophysics, 2003
openaire   +1 more source

The Origin of Carbonate Magmas Predating and Accompanying Main‐Phase LIPs Eruptions

Geochemistry, Geophysics, Geosystems
Some large igneous provinces (LIPs) are associated with precursory carbonatite eruptions. Models for precursory carbonatites invoking partial melting of a carbonate metasomatized lithosphere appear implausible, given the long time needed for heat ...
Cinzia G. Farnetani, Mark A. Richards
doaj   +1 more source

Recycled Components in Mantle Plumes Deduced From Variations in Halogens (Cl, Br, and I), Trace Elements, and ³He/⁴He Along the Hawaiian-Emperor Seamount Chain. [PDF]

Geochem Geophys Geosyst, 2019
Broadley MW, Sumino H, Graham DW, Burgess R, Ballentine CJ.   +4 more
europepmc   +1 more source

Deep mantle plumes feeding periodic alignments of asthenospheric fingers beneath the central and southern Atlantic Ocean. [PDF]

Proc Natl Acad Sci U S A
Munch FD, Romanowicz B, Mukhopadhyay S, Rudolph ML.   +3 more
europepmc   +1 more source

Evidence for mantle plumes?

, 2007
Geophysical hotspots have been attributed to partially molten asthenosphere, fertile blobs, small-scale convection and upwellings driven by core heat. Most are short-lived or too close together to be deeply seated, and do not have anomalous heat flow ...
Anderson, Don L., Natland, James H.
core  

Bilateral Loa-Kea trends of the Hawaiian Islands caused by the bottom-up splitting of plume conduit. [PDF]

Sci Adv
Zhang J, Hu J, Wang K.
europepmc   +1 more source

Pulsation of mantle plumes [PDF]

Russian Journal of Earth Sciences, 2016
V. P. Trubitsyn, M. N. Evseev
openaire   +1 more source

Linking carbonatites, rare earth ores, and subduction-fertilized mantle lithosphere. [PDF]

Sci Adv
Spandler C, Merdith AS, Griffin A.
europepmc   +1 more source

An Alternative to Mantle Plumes [PDF]

Nature, 1973
openaire   +1 more source