Results 41 to 50 of about 254 (118)

Raw Material Resource for Stainless Steel Production and Its Progress in China

open access: yesTeshugang, 2008
With the rapid increasing stainless steel output in recent years,the demand for ferrochromium and metallic nickel continuously increased at home. The resource  situation of ferrochromium mineral and nickel mineral in china and production process for ...
张友平, 周渝生, 李肇毅
doaj  

Gold Mineralizing Potential of the Late Triassic Calcareous, Carbonaceous and Sulfide‐Rich Sedimentary Rocks of the Isatomae Formation in the South Kitakami Belt, Japan

open access: yesResource Geology, Volume 76, Issue 1, January‐December 2026.
Isatomae Formation illustrating mineralogical and geochemical characteristics. (a) Overview of the Isatomae Formation, showing the marine anoxic environment and related biogenic processes. (b) Deposition of metal‐rich Fe oxyhydroxides were transformed into sulfides through diagenesis and low grade metamorphism.
June Born Born   +4 more
wiley   +1 more source

IMPROVEMENT OF THE CASTINGS SURFACE QUALITY AS A RESULT OF APPLICATION OF SPHERICAL CHROMITE SPHERICHROME

open access: yesЛитьë и металлургия, 2012
Comparison of chrome sand of Republic of South Africa abd chromite of new generation Spherichrone (producer – the American company Oregon Resources corporation) for priduction of castings with surface of high quality is given.
A. A. Korobov
doaj  

Catalyst Design–Performance Relationships for the Selective Catalytic Hydrogenation of Furfural to Furfuryl Alcohol

open access: yesJournal of Chemistry, Volume 2026, Issue 1, 2026.
The transition from fossil resources to renewable biomass for fuel and chemical production requires efficient catalytic technologies. Furfural (FF), a key platform molecule derived from hemicellulose, serves as a crucial bridge between biomass and value‐added chemicals.
Thapelo Baoketsi   +3 more
wiley   +1 more source

Provenance Reassessment of Eocene Turbidites, New Caledonia: Inferences for Obduction Models

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.
Abstract Provenance of pre‐obduction Eocene turbidites from New Caledonia is used to better constrain their geodynamic context and inform debate on subduction polarity. Chemical compositions of detrital clinopyroxenes in arenites are compared against potential sources.
Dominique Cluzel   +7 more
wiley   +1 more source

Discovery of heavy mineral sand in Djiboutian coastline (Obock area, SE Afar rift)

open access: yesJournal of Trace Elements and Minerals
Background: In this paper, we present the first study of black sand deposits collected along the coastline of the Obock area, which is located in the North East part of Djibouti (SE Afar Rif).
N. Moussa   +4 more
doaj   +1 more source

Mineralogically Diverse and Salt‐Rich Regolith in Jezero Crater Characterized Using X‐Ray Spectroscopy

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 10, October 2025.
Abstract The Planetary Instrument for X‐ray Lithochemistry (PIXL) onboard the Perseverance rover has characterized the composition of Martian regolith at a scale of hundreds of microns using micro‐focus X‐ray fluorescence spectroscopy. PIXL data reveal a diverse population of regolith grains with distinct spectral, chemical, and crystallographic ...
Andrew O. Shumway   +23 more
wiley   +1 more source

Heavy Minerals Distribution and Provenance in Modern Beach and Fluvial Sands of the Betic Cordillera, Southern Spain

open access: yesGeosciences
This study uses heavy detrital minerals to determine actualistic fluvial and beach sand provenance across the Betic Cordillera (Spain), along the coast from Almeria to Marbella.
Anna Chiara Tangari   +5 more
doaj   +1 more source

The Trade-Off between Combustion and Partial Oxidation during Chemical Looping Conversion of Methane

open access: yesEnergies
The chemical looping reforming and combustion of methane have attracted increasing interest as processes for clean energy and syngas production, with potential to reduce carbon dioxide emissions.
Francesco Miccio   +5 more
doaj   +1 more source

88th Annual Meeting of the Meteoritical Society 2026: Contents

open access: yes
Meteoritics &Planetary Science, Volume 61, Issue S1, Page S2-S47, August 2026.
wiley   +1 more source

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