Results 31 to 40 of about 3,077,333 (252)

Size and Composition of the MORB+OIB Mantle Reservoir

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Most efforts to characterize the size and composition of the mantle that complements the continental crust have assumed that the mid‐ocean ridge basalt (MORB) source is the incompatible‐element depleted residue of continental crust extraction. The use of
A. W. Hofmann, C. Class, S. L. Goldstein
doaj   +1 more source

Rare earth element geochemistry of upper Ordovician cherts from the Southern Uplands of Scotland [PDF]

open access: yes, 1999
Caradoc and Ashgill radiolarian cherts and siliceous mudstones from the Southern Uplands preserve primary rare earth element (REE) signatures which are comparable to those of more recent deposits from continental margin settings.
Armstrong, H.A., Owen, A.W., Floyd, J.D.
core   +1 more source

A Study on the Number of Simple Elements in Peripatetic Philosophy and Suhrawardi's Illuminative Philosophy

open access: yesحکمت سینوی, 2019
The leading theory regarding the number of basic elements in classical natural sciences is formulated in the peripatetic school of philosophy, which assumes four basic elements to exist. They propose three possible explanations in support of this theory:
Saeed Anvari , AmirHosseyn Shahgoli
doaj   +1 more source

Зародження модернізму в сакральній архітектурі

open access: yesтеорія та практика дизайну, 2021
Проаналізовано знакові храми ХХ ст. – храми Мозера в Базелі та Мецгера в Люцерні, які згадуються разом як приклади модерністської сакральної архітектури в Швейцарії.
Liliia Gnatiuk
doaj   +1 more source

A Generalized Multi-Segment Sliding Wedge Model for Active Earth Pressure Under Narrow Backfill Width

open access: yesBuildings
The classical earth pressure theories, such as Coulomb’s and Rankine’s, are derived based on the assumption that the backfill soil extends infinitely behind a retaining wall.
Linlong Mu   +4 more
doaj   +1 more source

Cinema as a form of composition

open access: yesTechne, 2021
Technique and creativity Having been called upon to provide a contribution to a publication dedicated to “Techne”, I feel it is fitting to start from the theme of technique, given that for too many years now, we have fruitlessly attempted to understand
Michele Guerra
doaj   +1 more source

The effect of rare earth element doping on thermoelectric properties of GeTe

open access: yes, 2022
GeTe has attracted extensive attention due to high thermoelectric performance. Herein, we comprehensively investigate the effect of rare earth element (Eu, Gd, Er and Tm) substitutions at Ge site of GeTe on its thermoelectric performance.
Hong, Min   +10 more
core   +1 more source

Rare earth geochemistry of Arenig cherts from the Ballantrae Ophiolite and Leadhills Imbricate Zone, southern Scotland: implications for origin and significance to the Caledonian Orongeny [PDF]

open access: yes, 1999
Rare earth element (REE) data from low to mid-Arenig cherts are used to test competing models for the early Ordovician evolution of the Laurentian margin in the northern British Isles.
Armstrong, H.A., Owen, A.W., Floyd, J.D.
core   +2 more sources

New insights into urban planning of Caričin Grad: The application of modern sensing and detection methods [PDF]

open access: yesStarinar, 2016
Caričin Grad, Justiniana Prima, urban planning, fortification, settlement, aerial photography, geophysical surveys, LiDAR, photogrammetry, excavations, GIS.
Ivanišević Vujadin   +2 more
doaj   +1 more source

Rare earth elements in coastal sediments of the Northern Galician Shelf: influence of geological features [PDF]

open access: yes, 2012
Prego, R., Caetano, M., Bernardez, P., Brito, P., Ospina-Alvarez, N., & Vale, C. (2012). Rare earth elements in coastal sediments of the Northern Galician Shelf: influence of geological features. Continental Shelf Research, 35, 75–85.
Caetano, M   +11 more
core   +1 more source

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