Results 131 to 140 of about 82,628 (256)
The Geologic Features of the Occurrence of Copper in North America [PDF]
, 1933 Copper is of such widespread natural occurrence in North America and there are so few metal-mining districts that have not contributed to its production that it is obviously necessary in any brief general treatment of the geology of the copper deposits ...
Ransome, F. L.
core
Long‐Term Storage of Meteoric Water in the Variscan Basement: Stable Isotope Constraints (δD–δ18O)
Terra Nova, Volume 38, Issue 2, Page 116-123, April 2026.ABSTRACT F‐Ba‐Pb‐Zn (±Ag) deposits near the unconformity between the Armorican and Aquitaine basins formed by mixing surface waters and brines with fluid ascending from the basement. To better constrain the source of this fluid and the conditions of mixing, we analyzed the hydrogen (δDwater) and oxygen (δ18Owater) isotopic composition of water trapped ...
Loïc Bouat +2 more
wiley +1 more source
Mechanochemical Enhancement of Siderite‐To‐Magnetite Conversion in Faults
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Magnetic phases in fault rocks offer potential “geothermometers” for estimating frictional heating during fault slip. However, the thermochemical kinetics of magnetic minerals subjected to shear deformation in hydrothermal fluids‐conditions typical of natural faults ‐ remains poorly understood, hindering accurate temperature estimates.
Tingting Du +7 more
wiley +1 more source
ORE MINERALOGY AND POLYMETAMORPHOSED PNATURE OF THE ARCHEAN Zn-Cu-Fe MASSIVE SULFIDE DEPOSITS AT THE GARON LAKE MINE, MATAGAMI, QUEBEC, CANADA [PDF]
Journal of Sciences, Islamic Republic of Iran, 1989 Massive Zn-Cu-Fe sulfide deposits at the Garon Lake Mine occur in three sulfide lenses in a group of metamorphosed rhyolite crystal tuffs, metasediments and basalts. The major ore minerals are sphalerite, chalcopyrite, pyrrhotite and pyrite.
doaj
Layered Ti1‐xFexS2 Cathode Materials with Anionic Redox Chemistry for Mg Storage
Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.The predicted layered Ti‐Fe sulfides exhibit joint cationic and anionic redox and faster Mg2+ kinetics over pyrite forms and are promising cathodes for rechargeable Mg battery. Rechargeable magnesium batteries (RMBs) are a promising alternative to lithium‐ion batteries because of the high capacity and crustal abundance of magnesium.
Arup Chakraborty +8 more
wiley +1 more source
The Anatomical Record, Volume 309, Issue 3, Page 550-602, March 2026.Abstract Actinopterygii is a major extant vertebrate group, but limited data are available for its earliest members. Here we investigate the morphology of Devonian actinopterygians, focusing on the lower jaw. We use X‐ray computed tomography (XCT) to provide comprehensive descriptions of the mandibles of 19 species, which span the whole of the Devonian
Ben Igielman +11 more
wiley +1 more source
Business Strategy &Development, Volume 9, Issue 1, March 2026.ABSTRACT Mining is crucial to the development of developing countries. This article studies the perspective of Indigenous peoples of Fiji (iTaukei) on the impact of mining on their development. Considering Indigenous knowledge at the core of this research, a unique qualitative methodology that integrates Vakumuni Vuku ni Vanua (gathering wisdom of the ...
Eduardo Ordonez‐Ponce +2 more
wiley +1 more source
Utilization of Waste Materials Using the Müller–Kühne Process—A Life Cycle Inventory Study
Chemie Ingenieur Technik, Volume 98, Issue 3, Page 78-84, March 2026.This study presents a Life Cycle Inventory of the Müller–Kühne process (MKP), which converts gypsum waste into sulfuric acid and cement clinker. The MKP outperforms conventional cement production regarding material yield, though its specific energy demand is higher. Consequently, potentials for circular gypsum waste utilization are discussed.
Leon Kassner +4 more
wiley +1 more source
Applying Karst Hydrology Concepts to Anthropogenic Subsurface Systems and Mine Water Management
Hydrological Processes, Volume 40, Issue 3, March 2026.Due to the pronounced similarities between natural karst systems and mine workings, we consider mine workings as man‐made karst and present the concept of ‘anthropogenic karst’. ABSTRACT Mine water management is a permanent challenge in post‐mining areas where drainage adits play a crucial role for the regulation of water levels within partially ...
Tabea Kubutat, Christoph Butscher
wiley +1 more source
Pyrite as a catalyst for the emergence of multiphase primitive cells. [PDF]
Front MicrobiolDing N, Ren T, Liang D, Dong H.
europepmc +1 more source