Results 211 to 220 of about 31,278 (263)

Replacement of Ores Recorded by Textures and Chemical Compositions of Sphalerite: An Example From the Furutobe Kuroko Deposit, Akita, Japan

open access: yesGeological Journal, EarlyView.
Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia   +4 more
wiley   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

open access: yesGeological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

Intramolecular C–H Nitrene Insertion Catalyzed by Single‐Atom Cobalt on Nitrogen‐Doped Carbon

open access: yesHelvetica Chimica Acta, EarlyView.
A cobalt single‐atom catalyst was applied to intramolecular C(sp3)–H nitrene insertion to synthesize benzosultams. The catalyst was reused for 17 times with cumulative turnover number 340. ABSTRACT Single‐atom catalysts (SACs) are advancing heterogeneous organic synthesis by combining the molecular precision of homogeneous complexes with the ...
Tomohiro Yasukawa   +5 more
wiley   +1 more source

Iron-Sulfur Clusters and Cancer

open access: yesBiomedical Journal of Scientific & Technical Research
openaire   +1 more source

Iron-Sulfur Clusters: Nature's Modular, Multipurpose Structures

Science, 1997
Iron-sulfur proteins are found in all life forms. Most frequently, they contain Fe 2 S 2 , Fe 3 S 4 , and Fe 4 S 4 clusters.
H, Beinert, R H, Holm, E, Münck
openaire   +4 more sources

Abiological Iron−Sulfur Clusters

Chemical Reviews, 1998
Hiroshi Ogino   +2 more
openaire   +3 more sources

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