Results 71 to 80 of about 36,965 (285)

Countercation Manipulation Enables Selective Electrochemical CO2‐to‐Formate Conversion Over Bi‐Polyoxometalate‐Derived Catalysts

open access: yesChemistry – A European Journal, EarlyView.
Ba2+ salt of Bi‐incorporated polyoxometalate (POM), Bi4 ([Bi4O(γ‐SiW10O36)2(OAc)]7−), immobilized on a carbon support (Ba‐Bi4/C) functioned as a formate (HCOO−)‐selective catalyst for electrochemical CO2 reduction reaction (CO2RR). The incorporation of Ba2+ and the formation of highly dispersed Bi species were the key factors for Ba‐Bi4/C to achieve ...
Kimitake Kawakami   +12 more
wiley   +1 more source

MID-MIOCENE SEQUENCES OF HIGH- AND MODERATE-MG VOLCANIC ROCKS IN VITIM PLATEAU, SOUTHERN SIBERIA: IMPACT OF A SUB-LITHOSPHERIC CONVECTIVE MATERIAL ON THE LITHOSPHERE

open access: yesГеодинамика и тектонофизика, 2015
A comparative study of major elements, trace elements, and isotopes in high- and moderate-Mg volcanic sequences of 16–14 and 14–13 Ma, respectively, has been performed in the Bereya volcanic center.
I. S. Chuvashova   +5 more
doaj   +1 more source

A High‐Performance Oxidized Graphene for Dendrite‐Free Anodes and Kinetically Enhanced Cathodes of Aqueous Zn‐Ion Batteries

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Oxidized graphene rich in carboxylic acid groups obtained via a simple electrochemical exfoliation route is shown to tackle the main challenges of aqueous Zn‐ion batteries (AZIBs), specifically short Zn anode cycle life and sluggish cathode reaction kinetics.
Enrique Álvarez‐Rubiera   +9 more
wiley   +1 more source

Effect of volcanic sulfur dioxide on solar UV irradiance during the 2023 Fagradalsfjall eruption in Reykjavík, Iceland

open access: yesMeteorologische Zeitschrift
Sulfur dioxide is an important atmospheric gas that can attenuate solar ultraviolet radiation. It can be found in greater quantities in highly polluted areas and especially in volcanic plumes.
Klára Čížková   +5 more
doaj   +1 more source

O fogo é o agente, que causa tantas maravilhas A América e as explosões subterrâneas na História Universal dos Terremotos de 1758

open access: yesVaria História
Resumo Esse artigo comenta a obra A História Universal dos Terremotos, o primeiro catálogo sísmico elaborado em língua portuguesa, escrita por Joachim José Moreira de Mendonça na sequência do Grande Terremoto de Lisboa (GTL) de 1755.
Jorge FERREIRA, Maria Margaret LOPES
doaj   +1 more source

Seismotectonics of the Koryak Highland — one of active edge of the continent of Eurasia

open access: yesГеофизический журнал, 2020
In the article the features of the general seismotectonics of the Koryak Highland as the northwestern part of the framing of the Bering plate, including the latest (09.01.2020) seismic activation in the area of Mount Ledyanaya are presented.
G.P. Yarotskyy   +2 more
doaj   +1 more source

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

open access: yesGeological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia   +4 more
wiley   +1 more source

Weekly Volcanic Activity Report

open access: yes, 2003
The Weekly Volcanic Activity Report is a cooperative project between the Global Volcanism Program of the Smithsonian's National Museum of Natural History and the US Geological Survey's Volcano Hazards Program.
Global Volcanism Program
core  

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

open access: yesGeological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo   +3 more
wiley   +1 more source

Geochemistry and Geochronology of Magmatic Rocks in Southwestern and Northeastern Cambodia: Implications for the Tectonic Evolution and Metallogenesis of the Loei Fold Belt

open access: yesGeological Journal, EarlyView.
The composition of intrusive rocks suggests that the magma was likely generated in a subduction‐related setting. The arc crustal thickness in the Phnom Sro Ngam and Halo Prospects was probably < 40 km during emplacement. Zircon U–Pb age range indicates a correlation with Loei Fold Belt magmatic activity.
Sirisokha Seang   +6 more
wiley   +1 more source

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