Results 51 to 60 of about 1,482 (158)

Low Temperature Sabatier CO2 Methanation

ChemCatChem, Volume 16, Issue 24, December 20, 2024.
This review exhaustively summarizes the advances made since the beginning of the century in the field of the Sabatier reaction conducted at temperatures less than or equal to 200 °C. Thermal catalysis as well as plasma‐assisted and photo‐assisted catalysis are described there.
Clément Molinet‐Chinaglia, Seema Shafiq, Philippe Serp   +2 more
wiley   +1 more source

RocMLMs: Predicting Rock Properties Through Machine Learning Models

Journal of Geophysical Research: Machine Learning and Computation, Volume 1, Issue 4, December 2024.
Abstract Mineral phase transformations significantly alter the bulk density and elastic properties of mantle rocks and consequently have profound effects on mantle dynamics and seismic wave propagation. These changes in the physical properties of mantle rocks result from evolution in the equilibrium mineralogical composition, which can be predicted by ...
Buchanan Kerswell, Nestor G. Cerpa, Andréa Tommasi, Marguerite Godard, José Alberto Padrón‐Navarta   +4 more
wiley   +1 more source

Platinum Group Minerals of Ranomena chromitite, Tamatave district, Madagascar

, 2010
Madagascar is rich in chromite deposits scattered through the Archean terranes. The main ore districts are, from North to South, Befandriana, Andriamena and Tamatave.
M. Moroni, G. Grieco, A. Merlini, A. Cazzaniga   +3 more
core   +2 more sources

Integration of ground geophysical methods to characterize near‐surface aquifer zones within an active mine

Near Surface Geophysics, Volume 22, Issue 5, Page 521-538, October 2024.
Abstract Understanding near‐surface groundwater storage, flow patterns, surface and groundwater interactions in mining areas can assist in making mining more efficient and profitable. This is especially important in opencast mines affected by water inflows that may negatively affect production and increase mining costs. We map and characterize the near‐
Sikelela Gomo, Ndamulelo Mutshafa, Jureya Dildar, Musa S. D. Manzi, Julie E. Bourdeau, Bojan Brodic, Ian James, Gordon R. J. Cooper, Raymond J. Durrheim   +8 more
wiley   +1 more source

Intelligent Metallogenic Evaluation of Podiform Chromitites Based on Multi-Source Data Fusion and Deep Learning of Geological Structures

Remote Sensing
Chromite is a strategically critical mineral resource in short supply in China, and detecting the spatial distribution of concealed chromitite orebodies in plateau regions remains challenging.
Jianan Li, Huan Yu, Xiaofeng Liu, Suolang Dundan, Kangkang Li, Han Wang, Chengjiang Deng, Yunfeng Gao   +7 more
doaj   +1 more source

Solid Inclusions in Au-nuggets, genesis and derivation from alkaline rocks of the Guli Massif, Northern Siberia

Open Geosciences, 2016
A total of 112 Au-nuggets, collected from alluvial placer deposits of the Ingarinda River from the Guli massif, located in northem Siberia, Russia, were investigated.
Dvorani Sami N.
doaj   +1 more source

Seismic imaging of the complex geological structures in the southwestern edge of the Western limb, Bushveld Complex through focusing pre‐stack depth migration of legacy 2D seismic data

Geophysical Prospecting, Volume 72, Issue 7, Page 2504-2519, September 2024.
Abstract We reprocessed a 50‐km long legacy 2D reflection seismic profile acquired in 1986, under a project funded by the National Geophysics Program to improve the delineation of complex geological structures that host the platinum‐bearing horizons (known as the UG2 reef; a chromitite horizon) on the south‐eastern edge of the Western limb of the ...
Mpofana Sihoyiya, Felix Hloušek, Musa S. D. Manzi, Moyagabo K. Rapetsoa, Stefan Buske, David Khoza   +5 more
wiley   +1 more source

Geochemistry of podiform chromitite and host rocks within the Buem Structural Unit, Northwestern Benin Republic: Implications for the geodynamic evolution of the Dahomeyide orogenic belt

Results in Earth Sciences
The paper presents the geochemistry, origin and geodynamic setting of podiform chromitite and host rocks from the Buem Structural Unit (BSU) in the northwestern Benin Republic.
Daniel N. Kouagou N’Dah, Samuel B. Olobaniyi, Luc C. Adissin Glodji, Sory I.M. Konate, Elhadji Mory Traore, Daniel Kwayisi, Clement B. N’Satta, Ibrahim S. Yerima   +7 more
doaj   +1 more source

Multi‐geophysical methods for characterizing fractures in an open pit mine, western Bushveld Complex, South Africa

Geophysical Prospecting, Volume 72, Issue 5, Page 1950-1970, June 2024.
Abstract In the Bushveld Complex, South Africa, open pit mines are faced with a challenge of rock slope stability due to geological structures (fractures, faults and dykes) that compartmentalize the rock mass. Geophysical surveys (seismics, magnetics and electrical methods) were conducted in a 0.2 km2 area at Tharisa mine, with the goal to delineate ...
Moyagabo K. Rapetsoa, Sikelela Gomo, Musa S. D. Manzi, Ian James, Jureya Dildar, Mpofana Sihoyiya, Ndamulelo Mutshafa, Raymond J. Durrheim   +7 more
wiley   +1 more source

Probing the 186Os/188Os Precision Barrier: New Recommended Values for the DROsS Reference Material and an Assessment of Mixed 1011 and 1012 Ω Amplifier Arrays

Geostandards and Geoanalytical Research, Volume 48, Issue 1, Page 109-132, March 2024.
Key Points Most precise 184Os/188Os ratio yet measured: 0.0013036 ± 0.0000007. New recommended values for DROsS: 186Os/188Os = 0.1199319 ± 0.0000024, 187Os/188Os = 0.1609227 ± 0.0000022, 189Os/188Os = 1.219709 ± 0.000010, 190Os/188Os = 1.983793 ± 0.000011.
Pedro Waterton, Sarah Woodland, Graham Pearson, Simon Hansen Serre, Kristoffer Szilas   +4 more
wiley   +1 more source