Results 131 to 140 of about 2,366,156 (316)

The upper mantle transition region: Eclogite? [PDF]

open access: yes, 1979
The upper mantle transition region is usually considered to be peridotite which undergoes a series of phase changes involving spinel and post‐spinel assemblages.
Anderson, Don L.
core  

Orthopyroxene-dominated upper mantle melting built the early crust of the Moon

open access: yesCommunications Earth & Environment
The paradigm of lunar crust formation has been widely applied to other terrestrial bodies, but the nature of early crust building on the Moon remains enigmatic.
Si-Zhang Sheng   +9 more
doaj   +1 more source

Oxidation of Archean upper mantle caused by crustal recycling. [PDF]

open access: yesNat Commun, 2022
Gao L   +6 more
europepmc   +1 more source

Chemical Heterogeneities along the South Atlantic Mid-Ocean-Ridge (5-11°S): Shallow or Deep Recycling of Ocean Crust? [PDF]

open access: yes, 2011
Between 5° and 11°S, the Mid-Atlantic Ridge displays anomalous crustal thickness and geochemical compositions, thought to be related to either small scale upper mantle heterogeneities or a weak, diffuse mantle plume.
Garbe-Schönberg, Dieter   +5 more
core  

The Role of Upper Mantle Forces in Post‐Subduction Tectonics: Plumelet and Active Rifting in the East Anatolian Plateau

open access: yesGeochemistry, Geophysics, Geosystems
The spatiotemporal interaction of large‐ and regional‐scale upper mantle forces can prevail in collisional settings. To better understand the role of these forces on post‐subduction tectonics, we focus on mantle dynamics in the East Anatolian Plateau, a ...
Ebru Şengül Uluocak   +4 more
doaj   +1 more source

Thermochemical anomalies in the upper mantle control Gakkel Ridge accretion. [PDF]

open access: yesNat Commun, 2021
O'Connor JM   +5 more
europepmc   +1 more source

Slab Geometry and Upper Mantle Flow Patterns in the Central Mediterranean From 3D Anisotropic P-Wave Tomography. [PDF]

open access: yesJ Geophys Res Solid Earth, 2022
Rappisi F   +4 more
europepmc   +1 more source

Preliminary observations from the use of US-Soviet Joint Seismic Program data to model upper mantle triplications beneath Asia [PDF]

open access: yes, 1993
New short-period waveform data from the US-Soviet Joint Seismic Program (JSP) make possible investigations of Asian upper mantle structure. the goal of this paper is to explore the potential use of the newly available JSP data to gain a qualitative view ...
Burdick, L. J.   +2 more
core  

Dislocation interactions in olivine control postseismic creep of the upper mantle. [PDF]

open access: yesNat Commun, 2021
Wallis D   +3 more
europepmc   +1 more source

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