Results 21 to 30 of about 35,440 (290)

Understanding the interaction between a steel microstructure and hydrogen [PDF]

, 2018
The present work provides an overview of the work on the interaction between hydrogen (H) and the steel’s microstructure. Different techniques are used to evaluate the H-induced damage phenomena. The impact of H charging on multiphase high-strength
Depover, Tom, Laureys, Aurélie, Perez Escobar, Diana Maria, Van den Eeckhout, Emilie, Verbeken, Kim, Wallaert, Elien   +5 more
core   +2 more sources

The lithospheric mantle and lower crust-mantle relationships under Scotland: a xenolithic perspective [PDF]

, 2011
In the British Isles the majority of volcanic rocks containing upper mantle and lower crustal xenoliths occur in Scotland. Most of the occurrences are of Carboniferous–Permian age.
Arai, B.G.J. Upton, Bonadiman, C. Bonadiman, Greenbaum, Griffin, H. Downes, Irving, Johnson, Kirstein, L.A. Kirstein, Larsen, Macdonald, McDonough, Menzies, P.G. Hill, Singh, T. Ntaflos   +17 more
core   +1 more source

Can Biomass Mastication Assist the Downstreaming of Polyhydroxyalkanoates Produced from Mixed Microbial Cultures?

Molecules, 2023
Polyhydroxyalkanoates (PHAs) are natural polyesters which biodegrade in soils and oceans but have more than double the cost of comparable oil-based polymers. PHA downstreaming from its biomass represents 50% of its overall cost.
Hiléia K.S. Souza, Mariana Matos, Maria A.M. Reis, José A. Covas, Loïc Hilliou   +4 more
doaj   +1 more source

Tracking Crystal‐Melt Segregation and Accumulation in the Intermediate Magma Reservoir

Geophysical Research Letters, 2023
The genesis of intermediate intrusions is highly controversial, and one of the hot topics is whether they represent frozen melts or cumulates in the evolution of magmatic systems. Distinguishing accumulation from crystallization melt differentiated along
Jian‐Feng Ma, Xiao‐Lei Wang, Alexandra Yang Yang, Tai‐Ping Zhao   +3 more
doaj   +1 more source

Channelized melt flow in downwelling mantle: Implications for 226Ra-210Pb disequilibria in arc magmas [PDF]

, 2008
We present the results of an analytical model of porous flow of viscous melt into a steadily dilating ‘‘channel’’ (defined as a cluster of smaller veins) in downwelling subarc mantle.
Abelson, Aharonov, Asimow, Blundy, Bourdon, Brown, Cagnioncle, Conder, Davidson, Huang, Kelemen, M. A. Koenders, Maaloe, McKenzie, Murton, N. Petford, Plank, Ribe, Rubin, Rubin, Rushmer, S. Turner, Sleep, Spiegelman, Spiegelman, Spiegelman, Stevenson, Stracke, Stracke, Takahashi, Turner, Turner, Turner, Turner, Turner, van Keken, Walpole, Williams   +37 more
core   +1 more source

Mantle melting as a function of water content beneath back-arc basins [PDF]

, 2006
Subduction zone magmas are characterized by high concentrations of H_(2)O, presumably derived from the subducted plate and ultimately responsible for melting at this tectonic setting.
Grove, Timothy L., Hauri, Erik, Kelley, Katherine A., Newman, Sally, Plank, Terry, Stolper, Edward M.   +5 more
core   +1 more source

Influence of Lithology on Reactive Melt Flow Channelization

Geochemistry, Geophysics, Geosystems, 2020
To investigate channelization during migration of a reactive melt, we performed a series of Darcy‐type experiments in which an alkali basalt infiltrated partially molten harzburgites and lherzolites at a confining pressure of 300 MPa, temperatures of ...
M. Pec, B. K. Holtzman, M. E. Zimmerman, D. L. Kohlstedt   +3 more
doaj   +1 more source

Time scales of melt extraction revealed by distribution of lava composition across a ridge axis [PDF]

, 2010
International audienceTemporal fluctuations of magmatic processes during the last 800 kyr have been investigated for the slow spreading Central Indian Ridge.
Benoit, Mathieu, Briais, Anne, Cordier, Carole, Dyment, J., Hémond, Christophe,, Kitazawa, M., Le Gall, Bernard   +6 more
core   +4 more sources

Accessory Mineral Eu Anomalies in Suprasolidus Rocks: Beyond Feldspar

Geochemistry, Geophysics, Geosystems, 2020
Accessory mineral Eu anomalies (Eu/Eu*) are routinely measured to infer changes in the amount of feldspar over time, allowing accessory mineral U‐Pb dates to be linked to the progressive crystallization of igneous and metamorphic rocks and, by extension,
R. M. Holder, C. Yakymchuk, D. R. Viete
doaj   +1 more source

STUDYING GLACIAL MELT PROCESSES USING SUB-CENTIMETER DEM EXTRACTION AND DIGITAL CLOSE-RANGE PHOTOGRAMMETRY [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2012
Glaciers are sensitive to climatic variation and a particular developing area of investigation is in the field of "cryoconite”, referring to dustlike residues which form on the glacier surface.
E. Sanz-Ablanedo, J. H. Chandler, T. D. L. Irvine-Fynn   +2 more
doaj   +1 more source