Results 141 to 150 of about 7,693 (174)

Density of MORB eclogite in the upper mantle

Physics of the Earth and Planetary Interiors, 2004
Abstract In order to study the role of eclogite (subducted oceanic crust) in geodynamics, we carried out high-pressure experiments on natural mid-oceanic ridge basalt (MORB) using a multi-anvil apparatus. We determined phase relations of MORB as a function of pressure and temperature in the temperature range of 1200–1700 °C and pressures from 5 to 14 
I.Aoki, E.Takahshi
openaire   +2 more sources

Han+2023-MORB data-old

2023
This zip file contains data presented in the Nature Geoscience submission “Marine magnetic anomalies enhanced by internal stress in rapidly cooled submarine lavas” by Han et al., 2023. 1. Folder “Figure04 DATA” has one spreadsheet that contains all data plotted in Figure 4a–d. 2. Folder “Rockmagnetism” contains five subfolders. (1) Subfolder “FORC_DATA”
openaire   +1 more source

Melting of MORB at core–mantle boundary

Earth and Planetary Science Letters, 2015
Abstract We investigated the melting properties of natural mid-ocean ridge basalt (MORB) up to core–mantle boundary (CMB) pressures using laser-heated diamond anvil cell. Textural and chemical characterizations of quenched samples were performed by analytical transmission electron microscopy.
Pradhan, Gopal K., Fiquet, Guillaume, Siebert, Julien, Auzende, Anne-Line, Morard, Guillaume, Antonangeli, Daniele, Garbarino, Gaston   +6 more
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Geochemistry of the Start Complex greenschists: Rhenohercynian MORB?

Geological Magazine, 1993
AbstractThe meta-igneous greenschists of the Start Complex, SouthDevon, are composed of a mineralogically uniform, but texturally variable, actinolite-epidote-albite assemblage with retrogressed variants containing chlorite, muscovite, sphene, carbonate and oxidized opaque minerals.
P. A. Floyd, R. E. Holdsworth, S. A. Steele   +2 more
openaire   +1 more source

New Hafnium Isotopic Constraints on the Source of MORB

Mineralogical Magazine, 1998
Since Patchett (1983) measured the first hafnium isotopic compositions of MORB samples, it has been known that basalts produced at ridges have Hf isotopic compositions that vary in a manner which is independant of the variations seen in Sr and Nd isotopic compositions.
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The origin of E-MORB

Geochimica et Cosmochimica Acta, 2006
A.W. Hofmann, C. Hémond
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The composition of the MORB source

Goldschmidt2024 abstracts
Albrecht Hofmann, Steven Goldstein, Cornelia Class   +2 more
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Heterogeneous Fossil Réunion Plume Component in the Source Region of Enriched MORB Along the Central Indian Ridge Between 12° and 17°S

Journal of Geophysical Research: Solid Earth, 2022
Clement Vincent, Jung-Woo Park, Sang-Mook Lee   +2 more
exaly  

Morbes

2016
openaire   +1 more source

Origin of high-Al N-MORB by fractional crystallization in the upper mantle beneath the Galápagos Spreading Center

Earth and Planetary Science Letters, 2006
Deborah E Eason, John Sinton
exaly