Results 41 to 50 of about 542,668 (236)
Volcanism of the La Quinta Formation in the Perijá mountain range
Boletín Geológico, 2020 This study reports new data on the petrography, total rock chemistry and U-Pb zircon geochronology of volcanic rocks of the La Quinta Formation that outcrop the western flank of the Perijá mountain range and the Cesar and La Guajira departments.
Gabriel Rodríguez García +1 more
doaj +1 more source
Sources of dehydration fluids underneath the Kamchatka arc
Nature Communications, 2022 Fluids released from progressive breakdown of minerals at increasing pressure within a mélange may explain the trace element systematics and stable thallium isotope data of the Kamchatka arc lavas from volcanic front to back arc.
Yunchao Shu +5 more
doaj +1 more source
Geochemistry of volcanic rocks from the Sunda Arc [PDF]
, 2013 Geochemical analyses of igneous rocks can provide valuable information about processes, element fluxes, and rock lithologies not evident at the surface.
DEMPSEY, SCOTT,ROBERT
core
, 2009 Het Centraal Bodemkundig Bureau (CBB) uit Deventer heeft Archaeological Research & Consultancy (ARC bv) opdracht verleend voor het uitvoeren van een archeologisch inventariserend onderzoek (IVO) op een perceel naast Noldijk 84 in Barendrecht.
Wullink, A.J. (ARC b.v.)
core +1 more source
Advanced Functional Materials, EarlyView.This work introduces an ultrafast thermal shock strategy to synthesize a CuNiSnLa medium‐entropy metallic glass (MEMG). The rapid heating and cooling process generates a robust, highly active catalyst for electrocatalytic nitrate reduction to ammonia (NRA).
Hongbo Chen +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow +6 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, 2022 The Philippine Sea Plate in the West Pacific is a unique natural laboratory to study subduction dynamics and the evolution of upper plate magmatism following subduction initiation.
Marco Maffione, Antony Morris
doaj +1 more source
Advanced Materials, EarlyView.Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu +3 more
wiley +1 more source
An Evaluation of Five Models of Arc Volcanism
Journal of Petrology, 2022 AbstractA first-order observation of convergent margin volcanism is that continental arc stratovolcanoes have substantially elevated incompatible element abundances and notable fractionations of certain incompatible element ratios compared to oceanic arc stratovolcanoes.
Stephen J Turner, Charles H Langmuir
openaire +1 more source
Advanced Science, EarlyView.A stable Ti3C2Clx/Ti3ZnC2 heterostructure, fabricated by dynamic etching, exhibits outstanding electrocatalytic NRR activity (NH3 yield: 20.1 µg h−1 mg−1, FE: 38.1%) in alkaline media. The corresponding Zn‐N2 battery achieves a peak power density of 36.5 µW cm−2 and an NH3 yield of 13.1 µg h−1 mg−1, providing an advanced strategy for NH3 and ...
Yu Wang +9 more
wiley +1 more source