Porphyry copper enrichment linked to excess aluminium in plagioclase [PDF]
, 2016 PublishedPorphyry copper deposits provide around 75%, 50% and 20% of world copper, molybdenum and gold, respectively1. The deposits are mainly centred on calc-alkaline porphyry magmatic systems2, 3 in subduction zone settings1.
Herrington, RJ +2 more
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Al‐Khadhaf: The first camera‐observed (H5–6) meteorite fall from Oman
Meteoritics &Planetary Science, Volume 61, Issue 3, Page 522-547, March 2026.Abstract A fireball camera system installed in 2022 by the Oman Meteorite Monitoring Project (OMMP) as part of the Global Fireball Observatory (GFO) recorded a 3.2 s fireball on March 8, 2022 at 8:15 p.m. UTC. A meteoroid of 4 ± 2 kg entered the atmosphere at 14.0 km/s.
Anna Zappatini +18 more
wiley +1 more source
Известия высших учебных заведений: Геология и разведкаBackground. Porphyry copper deposits are attracting increased attention, which determines the relevance of studying their geochemical patterns to ensure a greater efficiency of geological fore casting. Aim.
T. P. Morozova, V. V. Dyakonov
doaj +1 more source
Petrology, geochemistry and U-Pb geochronology of magmatic rocks from the high-sulfidation epithermal Au-Cu Chelopech deposit, Srednogorie zone, Bulgaria [PDF]
, 2018 The Chelopech deposit is one of the largest European gold deposits and is located 60km east of Sofia, within the northern part of the Panagyurishte mineral district.
Chambefort, Isabelle +2 more
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Multi‐Scale Electrical Conductivity Model of the Contiguous United States
Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.Abstract The completion of the Magnetotelluric (MT) USArray across the contiguous US enables continental‐scale 3‐D imaging of the asthenosphere‐lithosphere electrical structure. We present a novel 3‐D model of the contiguous United States (MECMUS), derived from a single inversion of the now‐completed USMTArray data set.
Federico D. Munch, Alexander Grayver
wiley +1 more source
Recent Advances in Tailoring Active Site Microenvironments of Fe–N–C Catalysts for Oxygen Reduction
ChemistryEurope, Volume 4, Issue 2, February 2026.This review summarizes the main factors affecting Fe–N–C catalysts for ORR: activity depends on active site structure, electronic configuration, and porosity, while stability is limited by metal leaching, carbon degradation, and inactive phase formation.
Mudassar Maqsood +6 more
wiley +1 more source
Metallogenic features of Miocene porphyry Cu and porphyry-related mineral deposits in Ecuador revealed by Re-Os, 40Ar/39Ar, and U-Pb geochronology [PDF]
, 2018 Mineralization and alteration events at ten Miocene porphyry Cu and porphyry-related epithermal mineral deposits in southern, central, and northern Ecuador were dated by means of molybdenite Re-Os, biotite and alunite 40Ar/39Ar, and titanite U-Pb ...
Barra, Fernando +4 more
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Numerical investigation of transient hydrothermal processes around intrusions: heat-transfer and fluid-circulation controlled mineralization patterns. [PDF]
, 2009 International audienceNew insights on the circulation of fluids around magmatic intrusions have been obtained through coupled hydrothermal numerical modelling that takes into account i) a continuous variation of permeability with depth, ii) the period of
Branquet, Yannick +3 more
core +3 more sources
The Depositional Record, Volume 12, Issue 1, February 2026.This paper discusses a new model concerning the precipitation mechanismand significance of anhydrite cement in tight sandstone. Anhydrite cement ismainly formed by the dissolution and reprecipitation of early‐diageneticcalcite cements, feldspars and volcanic rock fragments at the mesodiageneticstage.
Long Luo +10 more
wiley +1 more source
Determination of an Ultimate Pit Limit Utilising Fractal Modelling to Optimise NPV [PDF]
, 2015 The speed and complexity of globalisation and reduction of natural resources on the one hand, and interests of large multinational corporations on the other, necessitates proper management of mineral resources and consumption.
Yasrebi, Amir Bijan
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