Results 191 to 200 of about 18,694 (284)

Kinetic Studies on the Leaching of Pyrite with Plate Specimens

, 1975
Tadao Nagai, Hiromichi KIUCHI
openalex   +2 more sources

Surface electrochemical control for the fine coal and pyrite separation

, 1989
Wanxiong Chen, Weibai Hu, Jyi-Perng Wann, Ximeng Zhu, M.E. Wadsworth, D.M. Bodily   +5 more
openalex   +3 more sources

PYRITE VARIETIES IN ESTONIAN TREMADOCIAN ARGILLITE (DICTYONEMA SHALE) [PDF]

, 1992
T Kallaste, E Pukkonen
openalex   +1 more source

Photothermal conversion and geochemical characterization of sulfur-rich lignite for non-conventional energy applications. [PDF]

Sci Rep
Gopinathan P, Khan AA, Singh V, Santosh MS, Subramani T, Karmakar A, Kumar S, Asif M, Kumar OP, Naik AS, Banerjee PK, Sarangi PK.   +11 more
europepmc   +1 more source

Continuous Real‐Time Detection of H2, He, and 222Rn While Drilling DIVE‐1 Boreholes (ICDP) Indicates Deep Fracture Fluid Migration in Crystalline Rocks

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.
Abstract The identification and real‐time monitoring of geofluids during drilling is crucial for safe drilling operations and can provide valuable insights into reservoir properties and fluid migration. While mud gas logging is well established in oil and gas exploration, recent interest in natural hydrogen (H2) and helium (He) exploration has prompted
H. Dutoit, L. Truche, F. V. Donzé, T. Wiersberg, M. L. Doan, J. Li, A. Greenwood, E. Caspari, N. Lefeuvre, J. Dominique, S. Auclair, L. Masci, G. Hetényi, M. Venier, O. Müntener, ICDP DIVE Science Team   +15 more
wiley   +1 more source

Marine sulphate captures a Paleozoic transition to a modern terrestrial weathering environment. [PDF]

Nat Commun
Waldeck AR, Olson HC, Crockford PW, Couture AM, Cowie BR, Hodgin EB, Bergmann KD, Dewing K, Grasby SE, Clark RJ, Macdonald FA, Johnston DT.   +11 more
europepmc   +1 more source

Evidence of Mineral Alteration in a Salt Marsh Subterranean Estuary: Implications for Carbon and Trace Element Cycling

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 5, May 2025.
Abstract Subterranean estuaries (STE) in salt marshes are biogeochemically active zones where interactions between terrestrial groundwater and seawater drive complex cycling of carbon and trace elements, influenced by mineral dissolution. These systems, characterized by fine‐grained organic‐rich peat overlying permeable coastal aquifers, play a crucial
J. J. Tamborski, M. J. Eagle, M. T. Thorpe, M. A. Charette, B. L. Kurylyk, S. Rahman, K. D. Kroeger, J. O’Keefe Suttles, A. G. Mann, T. W. Brooks, Z. A. Wang   +10 more
wiley   +1 more source

Oxidation of Iron Sulfide and Pyrite by Ferric Oxide

, 1970
Hisashi Uchiyama, Kazushige Hirao, Naohiko MENO   +2 more
openalex   +2 more sources

Assessment of Elemental Geochemistry: Enrichment and Mobilisation in Acid Sulfate Soils in Southeast Brazil

European Journal of Soil Science, Volume 76, Issue 3, May/June 2025.
ABSTRACT The spatial distribution of acid sulfate soils is influenced by coastal processes, and due to their location, these soils can accumulate significant amounts of trace elements. This study assesses the horizontal and vertical distribution of major elements (Ca, Mg, K, Al, Fe, S), minor elements (P, Ti, Mn), and trace elements (Ba Co, Cu, Cr, Mo,
Francis Henrique Tenório Firmino, João Carlos Ker, Maurício Paulo Ferreira Fontes, Hidelbandi Farias de Melo, Isabela Cristina Filardi Vasques, Jaime Wilson Vargas de Mello, Luiz Felipe Mesquita   +6 more
wiley   +1 more source

Effect of the Addition of Ca(OH)₂, SiO₂, and Pyrite on the Shrinkage and the Metallization of Pellets Containing Coke during Firing

, 1974
Sogo Sayama, Yoshinobu Ueda
openalex   +2 more sources