Concept
Mafic
Related publications (18)
Variations in elastic and electrical properties of crustal rocks with varying degree of microfracturation
Marie Estelle Solange Violay, Lucas Xan Pimienta, Luis Felipe Orellana Espinoza
This work aims at investigating the effect of varying degrees of microfracturing on the joint elastic and electrical transport properties of rocks. Different crustal rocks were subjected to Thermal Treatment, expected to induce microfracturing, up to diffe ...
2019Flow monitoring of particle-laden flows combining ultrasonic doppler and echo intensity profiling techniques
Giovanni De Cesare, Shun Nomura, Jumpei Hitomi
The methodology to reveal inner structures of turbidity currents are required. Their behaviors have important roles to affect the sedimentation or transportation of fine particles. We have proposed a novel monitoring methodology for flows containing fine p ...
2018Introduction of an empirical TBM cutter wear prediction model for pyroclastic and mafic igneous rocks; a case history of Karaj water conveyance tunnel, Iran
One of the main cost items in tunneling projects using tunnel boring machines (TBMs) in rock and soil is the cost of changing of damaged or worn cutting tools. Cutter change is a time consuming activity which can have a major impact on the daily advance ra ...
Elsevier2014An experimental model approach of biologically-assisted silicate dissolution with olivine and Escherichia coli - Impact on chemical weathering of mafic rocks and atmospheric CO2 drawdown
Chemical weathering of Mg, Ca-silicates and alumino-silicates contributes significantly to the drawdown of atmospheric CO2 over long time scales. The present work focuses on how this mode of weathering may change in the presence of free-living bacteria in ...
Pergamon-Elsevier Science Ltd2013Using Silicate Mineral Particles for pH Control during in situ Bioremediation of Chlorinated Ethene Source Zones
Soil and groundwater pollution by chlorinated solvents such as tricholorethene (TCE) and tetrachloroethene (PCE) is a frequent problem in the industrialized world. Chlorinated solvents, characterized by a low solubility and a density greater than water, fo ...
EPFL2013Electrical conductivity in a partially molten crust from measurements on metasedimentary enclaves
The complex electrical impedance of a garnet-biotite-sillimanite residual enclave in the Neogene dacite of El Hoyazo (SE Spain) has been determined up to 978. °C at 200-300. MPa. This well studied material represents a direct sampling of the Alborán Domain ...
2013The structure of the asteroid 4 Vesta as revealed by models of planet-scale collisions
Asteroid 4 Vesta seems to be a major intact protoplanet, with a surface composition similar to that of the HED (howardite-eucrite-diogenite) meteorites(1-4). The southern hemisphere is dominated by a giant impact scar(5), but previous impact models(6-8) ha ...
Nature Publishing Group2013Buffering agent for pH control during in situ bioremediation of chlorinated solvent source zones
David Andrew Barry, Christof Holliger, Elsa Marina Lacroix
Chloroethenes such as tetrachloroethene (PCE) and trichloroethene (TCE) are among the most prevalent contaminants in groundwater. Because of their low aqueous solubility, PCE and TCE are often present as dense non aqueous phase liquid (DNAPL) that can act ...
2010The role of silver on the stabilization of the incommensurately modulated structure in calaverite, AuTe2
Gervais Chapuis, Alla Arakcheeva
Structural investigations of several minerals belonging to the calaverite group with composition Au1–xAgxTe2 (x = 0.00, 0.02, 0.05, 0.09, 0.19, and 0.33) indicate that Ag is randomly distributed on the Au sites. This suppresses the valence fluctuation of A ...
Mineralogical Society of America2009Effect of mineral reactions on the hydraulic properties of unsaturated soils: Model development and application
David Andrew Barry, Laurin Wissmeier
The selective radius shift model was used to relate changes in mineral volume due to precipitation/dissolution reactions to changes in hydraulic properties affecting flow in porous media. The model accounts for (i) precipitation/dissolution taking place on ...
2009