Results 71 to 80 of about 3,729 (220)
Abstract To date, the generation of natural hydrogen (H2) from the alteration of FeII‐bearing minerals has mainly been studied through serpentinization in (ultra)mafic rocks. This study explores Banded Iron Formations (BIF), which are rich in FeII minerals, as a potential source for H2.
U. Geymond +5 more
wiley +1 more source
The Fe-skarns from the Greek Island of Serifos in Cyclades has been utilized only for the exploitation of magnetite ores, while significantly vast amounts of red and yellow hematite ores remained unexploited as mining wastes.
Maria Mpiliou +8 more
doaj +1 more source
Mantle magma-thermofluidodynamic and intracrustal granitoid-hydrothermal-metasomatic auriferous systems [PDF]
Contents of typical models of formation of abyssal and intra-core ore-forming systems are discussed. As it has been already marked, the interaction between core and mantle ore-forming systems occurred at formation of large and unique golden-ore deposits.
Korobeynikov, A. F.
core
Abstract Correlation of ignimbrite units at polygenic calderas is mandatory for the reconstruction of caldera‐forming events and proper identification of their eruption dynamics. However, ignimbrites erupted at different times from the same caldera can display similarities in composition and lithology that can hamper proper correlation of outcrops ...
Arianna Beatrice Malaguti +5 more
wiley +1 more source
La orogenia del Cretácico Tardío-Terciario temprano o Laramide (90–40 Ma) en el noroeste de México produjo un importante magmatismo calcialcalino, acompañado por diversos yacimientos asociados de tipo pórfido cuprífero y skarn.
Efrén Pérez-Segura +2 more
doaj
Dzheltulak system of the Oktyabrsky ore-placer node of the Amur gold-bearing province
Background. Information on the Dzheltulak large placer system of the Amur gold-bearing province, which has produced 80 tons of gold, is presented. Aim. To determine the geological and structural position of the Dzheltulak placer system, one of the most ...
V. A. Stepanov, A. V. Melnikov
doaj +1 more source
La terminación sur-occidental del batolito de Andorra-Mont LLluís: características petrológicas y geoquímicas [PDF]
El batolito de Andorra-Mont Lluís es un tipico representante de los granitos de emplazamiento epizonal de los Pirineos. En su parte sur-occidental est6 constituido principalmente por granodioritas biotíticas, granodioritas biotítico-hornbltndicas y ...
Enrique, P., Soler, A.
core +1 more source
Rasgos generales de los skarns y mineralizaciones asociadas del Sistema Central español [PDF]
[Resumen] La existencia en el Sistema Central Español de gran variedad de mineralizaciones ligadas a skarns permite discriminarlas en base al protalito, profundidad de emplazamiento y composición del granito asociado.Estas variables definen las ...
Casquet Martín, César +1 more
core +2 more sources
A Mina-Escola de Santa Luzia-PB: um laboratório didático para estudantes de Mineração/Geologia
A Mina Escola representa um recurso didático localizada nas adjacências da cidade de Santa Luzia, Paraíba. Corresponde a um laboratório para estudos relacionados a mineração, em função dos seus componentes, tais como: mina subterrânea, escritório ...
Lauro Cézar Montefalco de Lira Santos +2 more
doaj +1 more source
Guia de campo "A febre do ouro" [PDF]
Programa e guia de campo do Curso de primavera do Projecto ZOM 3D ...
Araújo, António +6 more
core

