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Density of MORB eclogite in the upper mantle
Physics of the Earth and Planetary Interiors, 2004Abstract 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
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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”
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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”
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Melting of MORB at core–mantle boundary
Earth and Planetary Science Letters, 2015Abstract 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. +6 more
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Geochemistry of the Start Complex greenschists: Rhenohercynian MORB?
Geological Magazine, 1993AbstractThe 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 +2 more
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The genesis and significance of N-MORB sub-types
Contributions to Mineralogy and Petrology, 1989A global compositional dichotomy for N-MORB magma (N1/N2) is recognized on the basis of Na2O, TiO2, CaO, and Al2O3 contents, and their respective ratios. We have characterized the two magma sub-types by means of their trace element patterns, and attempted to explain the differences in major and trace element contents in terms of a partial melting model,
Flower, M. F. J. +4 more
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Picrites as parental magma of MORB-type tholeiites
Nature, 1982Recent experimental work on peridotites and basalts1–3 and a reappraisal of ophiolite complexes4 supports the concept that basalts are derived from picritic parents5–7. The occurrence of a density minimum in the liquid line of descent8–10 explains why mid-ocean ridge tholeiites fall in a restricted compositional range, and parental picrites can only be
D. J. Beets +4 more
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New Hafnium Isotopic Constraints on the Source of MORB
Mineralogical Magazine, 1998Since 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 composition of the MORB source
Goldschmidt2024 abstractsAlbrecht Hofmann +2 more
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