Results 71 to 80 of about 5,403,170 (324)

On the Origin of Crystal-poor Rhyolites: Extracted from Batholithic Crystal Mushes [PDF]

Journal of Petrology, 2004
The largest accumulations of rhyolitic melt in the upper crust occur in voluminous silicic crystal mushes, which sometimes erupt as unzoned, crystal-rich ignimbrites, but are most frequently preserved as granodioritic batholiths. After approximately 40–50% crystallization, magmas of intermediate composition (andesite–dacite) typically contain high-SiO2
openaire   +1 more source

Metal–Organic Frameworks for Gaseous Pollutant Management: From Capture to Neutralization and Reutilization

Advanced Functional Materials, EarlyView.
This review maps how MOFs can manage hazardous gases by combining adsorption, neutralization, and reutilization, enabling sustainable air‐pollution control. Covering chemical warfare agent simulants, SO2, NOx, NH3, H2S, and volatile organic compounds, it highlights structure‐guided strategies that boost selectivity, water tolerance, and cycling ...
Yuanmeng Tian, Zeyu Tao, Kaikai Ma, Xiaoliang Wang, Bo Yu, Yiu Wan Yip, Zhijie Chen, Jin Shang, Bin Fei   +8 more
wiley   +1 more source

Timescales and Mechanisms of Crystal-mush Rejuvenation and Melt Extraction Recorded in Permian Plutonic and Volcanic Rocks of the Sesia Magmatic System (Southern Alps, Italy)

, 2020
Silicic calderas can evacuate 100 to >1000 km3 of rhyolitic products in a matter of days to months, leading to questions on pre-eruptive melt generation and accumulation.
L. Tavazzani, S. Peres, S. Sinigoi, G. Demarchi, R. Economos, J. E. Quick   +5 more
semanticscholar   +1 more source

Microtextural characterisation of the Lower Zone in the western limb of the Bushveld Complex, South Africa: evidence for extensive melt migration within a sill complex [PDF]

, 2017
The Lower Zone of the Bushveld Complex comprises an up to 2-km-thick package of different ultramafic rock types with an approx. 90-cm-thick, sulphide-bearing noritic interval that occurs in the western and eastern limbs.
Karykowski, Bartosz, Maier, Wolfgang
core   +2 more sources

Toward Energy Efficient Electrochemical Valorization of Waste Nitrate and Sulfide

Advanced Materials, EarlyView.
This work introduces an integrated electrochemical strategy couples nitrate reduction with sulfide oxidation for energy‐efficient wastewater valorization. A Cu‐Co dual‑site catalyst, engineered for close proximity, promotes *NO2 relay and subsequently NH3 formation, enabling the system to operate at substantially reduced cell voltages and produce high ...
Bihao Hu, Yifan Zhou, Xiaoyuan Zhang, Shibo Xi, Qian He, Lei Wang   +5 more
wiley   +1 more source

A numerical analysis of buoyancy-driven melting and freezing [PDF]

, 2004
A numerical investigation of transient natural convective heat transfer with coupled phase change is presented. The numerical model attempts to capture the solid-fluid interface using a fixed-grid solution and is applied to two pure substance cases found
Scanlon, T.J., Stickland, M.T.
core   +1 more source

Energy‐Efficient, Sustainable Cascade Glucose Electrooxidation into Glucaric Acid

Advanced Materials, EarlyView.
This study presents a tandem system that efficiently converts glucose into glucaric acid while generating renewable electricity. By decoupling the oxidation process into two cascaded steps, the system achieves an overall 90% Faradaic efficiency and 80% conversion efficiency at ∼0.6 VRHE, significantly reducing energy consumption compared to traditional
Mingming He, Chao Huang, Mingzi Sun, Ruixuan Wang, Yun Song, Jianjun Su, Weihua Guo, Yinger Xin, Qiang Zhang, Yong Liu, Geng Li, Zihao Li, Rui Xue, Bolong Huang, Ben Zhong Tang, Ruquan Ye   +15 more
wiley   +1 more source

A General Model for the Permeability of Magma Mush

Geochemistry, Geophysics, Geosystems
Percolation through magma mush is a key transport mechanism for melts in the crust and is influenced by the permeability of the crystal framework. Existing models for mush permeability do not account for the range of microstructures that can evolve as ...
Eloïse Bretagne, Fabian B. Wadsworth, Jérémie Vasseur, Katherine E. Schofield, Madeleine C. S. Humphreys, Katherine J. Dobson   +5 more
doaj   +1 more source

Formation of fast-spreading lower oceanic crust as revealed by a new Mg–REE coupled geospeedometer [PDF]

, 2018
A new geospeedometer is developed based on the differential closures of Mg and rare earth element (REE) bulk-diffusion between coexisting plagioclase and clinopyroxene.
Lissenberg, C. Johan, Sun, Chenguang
core   +3 more sources

Mistletoe‐ and Mussel‐Inspired Fabrication of Hierarchically Structured Protein‐Cellulose Scaffolds From Biomolecular Condensates

Advanced Materials, EarlyView.
Merging materials processing tricks inspired by mussel and mistletoe fiber fabrication, solutions of cationic mussel byssus proteins were mixed with modified anionic nanocrystalline cellulose, producing distinctive core‐shell condensates. Simple processing of condensate suspensions using freeze‐drying produced hierarchically structured porous protein ...
Hamideh R. Alanagh, Seyed Mohammad Amin Ojagh, Arman Jafari, Xinyu Zhan, Tara Sprules, Alexandre Poulhazan, Houman Savoji, Adam G. Hendricks, Theo G.M. van de Ven, Matthew J. Harrington   +9 more
wiley   +1 more source