Results 21 to 30 of about 30,947 (278)

Geochemical features and formation conditions of Early-Devonian cherty-argillaceous shales and the underlying basalts in the Ishkildino section (eastern slope of the Southern Urals)

open access: yesЛитосфера, 2019
Research subject. The West Magnitogorsk zone of the Southern Urals in the vicinity of the Ishkildino village features a subaerially exposed basaltic sequence superposed by cherts and siliceous-clay shales. The basalts and the overlying shales are assumed
A. M. Fazliakhmetov
doaj   +1 more source

Tracing crustal contamination of the Cenozoic basalts with OIB-affinity in northern marginal region of North China Craton: An Os perspective

open access: yesChina Geology, 2021
The Cenozoic basalts with OIB-affinity in northern marginal region of the North China Craton are thought to experience minor even no crustal contamination during the magma evolution.
Zhuang Li, Bin Chen
doaj   +1 more source

Image-assisted textural analysis of plagioclase crystals in volcanic rocks: an application to lavas erupted on 2021 at Pacaya volcano, Guatemala

open access: yesFrontiers in Earth Science
The adoption of semi-automated image processing methods to investigate geo-petrological processes has grown quickly in recent years. Utilizing multivariate statistical analysis of X-ray maps, these methods effectively extract quantitative textural ...
Roberto Visalli   +6 more
doaj   +1 more source

Lithium Isotopic Compositions of Mesozoic and Cenozoic Basalts From South-Eastern China: Implications for Extremely Low δ7Li of Continental-Type Eclogites

open access: yesFrontiers in Earth Science, 2022
Lithium isotope geochemical studies of oceanic-type eclogites benefited from previous investigation of altered oceanic crust; however, processes of lithium isotope exchange operating on altered protoliths of continental-type eclogites have remained ...
Cheng-Long Yu   +10 more
doaj   +1 more source

Petrographic and geochemical data of high alkaline basalts, Sisaket Terrain, NE Thailand

open access: yesData in Brief, 2021
This data article presents mineralogical and geochemical data of high alkaline basalts in Sisaket province, the southern part of Khorat Plateau, NE Thailand.
Vimoltip Singtuen, Sirinthorn Phajan
doaj   +1 more source

Compositional trends of Icelandic basalts: Implications for short–length scale lithological heterogeneity in mantle plumes [PDF]

open access: yes
Lithological variations in the mantle source regions under mid-ocean ridges and ocean islands have been proposed to play a key role in controlling melt generation and basalt composition.
Maclennan, John, Shorttle, Oliver
core   +1 more source

(Table 1) Age of basalts from the Norwegian Sea

open access: yes, 1979
(Table 1) Age of basalts from the Norwegian ...
Gennady S Kharin (6959660)   +5 more
core   +1 more source

The Bikou basalts in the northwestern Yangtze block, South China: Remnants of 820-810 Ma continental fl ood basalts?

open access: yes, 2008
Mantle plume or superplume activities have often been invoked as a cause for the breakup of the Neoproterozoic supercontinent Rodinia. However, associated Neoproterozoic continental flood basalts, a requisite product of mantle plume ac tivities, have ...
Yang YH   +15 more
core   +1 more source

(Table 3) Geochemistry of basalts of ODP Leg 121 holes

open access: yes, 1991
(Table 3) Geochemistry of basalts of ODP Leg 121 ...
Smith, Guy M   +5 more
core   +1 more source

Polydopamine‐Wool Textiles for Sustainable Interfacial Solar Vapor Generation

open access: yesAdvanced Science, EarlyView.
A natural wool textile engineered for high solar absorbance and a fast‐wicking structure serves as a highly efficient, single‐layer system for interfacial solar vapor generation (ISVG). This integrated evaporator seamlessly couples rapid water transport with continuous evaporation. Ultimately, this sustainable photothermal design offers a scalable, eco‐
Kyuin Park   +6 more
wiley   +1 more source

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