Results 181 to 190 of about 3,317 (237)

Nonlinearity of the post-spinel transition and its expression in slabs and plumes worldwide. [PDF]

Nat Commun
Dong J, Fischer RA, Stixrude LP, Brennan MC, Daviau K, Suer TA, Turner KM, Meng Y, Prakapenka VB.   +8 more
europepmc   +1 more source

Lower-mantle iron heterogeneity constrained by the electrical conductivity of Al-bearing bridgmanite. [PDF]

Sci Adv
Han K, Özaydın S, Fei H, Man L, Wang F, Chanyshev A, Withers AC, Grayver A, Katsura T.   +8 more
europepmc   +1 more source

Sluggish thermochemical basal mantle structures support their long-lived stability. [PDF]

Nat Commun
Shi Z, Mitchell RN, Li Y, Wan B, Chen L, Peng P, Zhao L, Liu L, Zhu R.   +8 more
europepmc   +1 more source

Ru and W isotope systematics in ocean island basalts reveals core leakage. [PDF]

Nature
Messling N, Willbold M, Kallas L, Elliott T, Fitton JG, Müller T, Geist D.   +6 more
europepmc   +1 more source

Channelized metasomatism in Archean cratonic roots as a mechanism of lithospheric refertilization. [PDF]

Nat Commun
Roots EA, Hill GJ, Frieman BM, Smith RS, Craven JA, Snyder DB, Calvert AJ.   +6 more
europepmc   +1 more source

Growth of continental crust and lithosphere subduction in the Hadean revealed by geochemistry and geodynamics. [PDF]

Nat Commun
Vezinet A, Chugunov AV, Sobolev AV, Jain C, Sobolev SV, Batanova VG, Asafov EV, Koshlyakova AN, Arndt NT, Danyushevsky LV, Valley JW.   +10 more
europepmc   +1 more source

Mantle plumes and geochemistry

Chemical Geology, 2007
Abstract There is considerable interest in the extent to which mantle plumes exist, how many there may be, and how best they can be recognized. It has proved unexpectedly difficult to image them consistently from seismology, and it has been suggested that they may be recognized from the geochemistry of rocks erupted at the Earth's surface.
Chris Hawkesworth, Anders Scherstén
openaire   +2 more sources

Evidence for mantle plumes?

Nature, 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 or temperature; many are related to tectonic features. Bourdon et al.
Anderson, Don L., Natland, James H.
openaire   +4 more sources

Mantle plumes and their role in Earth processes

Nature Reviews Earth & Environment, 2021
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 images and discrepancies in interpretations of geochemical and ...
Anthony A P Koppers, Thorsten W Becker, Matthew G Jackson   +2 more
exaly   +3 more sources

Chemical plumes in the mantle

Geological Society of America Bulletin, 1975
In developing the concept that chemical plumes have a deep-mantle origin, I propose that plumes result from original chemical inhomogeneities in the Earth. According to the hypothesis of in-homogeneous planetary accretion, the terrestrial planets formed with refractory cores and volatile-rich outer shells, that is, they are layered according to the ...
Anderson, Don L.
openaire   +2 more sources