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Olga D. Mokrushina, Julia A. Mikhailova and Yakov A. Pakhomovsky
The 360?370 Ma old Lovozero massif (NW Russia) is a layered nepheline syenitic-foidolitic pluton. Despite its huge size (650 km2), the massif is surrounded by a narrow fenite aureole, and the most intensive fenitization is associated with pegmatites and ...
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Howri Mansurbeg, Ibrahim Mohialdeen, Ali Al-Juboury, Namam Salih, Mohammad Alsuwaidi, Salahadin Shahrokhi, Ihsan Al-Aasm, Rebar Mahmmud and Albert Permanyer
Field observations, together with the results of gas chromatography?mass spectrometry (GC-MS) and stable carbon isotope analysis of bitumen, coupled with fluid inclusion microthermometry and stable isotope analyses of closely associated vug- and fracture...
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María Josefina Pons,Juan Mendiberri,Martín Arce,Gerson Alan Greco,Telma B. Musso,María Lis Fernández,Natalia Hauser,Pamela Aparicio González
Pág. 93 - 126
The Sofía-Julia-Valencia vein system, located in the Andacollo mining district in central west Argentina, is hosted by ENE-WSW oriented strike-slip faults which are the result of reactivation of normal faults affecting Carboniferous to Jurassic rocks dur...
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Christos L. Stergiou, Vasilios Melfos, Panagiotis Voudouris, Lambrini Papadopoulou, Paul G. Spry, Irena Peytcheva, Dimitrina Dimitrova and Elitsa Stefanova
The Gerakario Cu-Au porphyry deposit in the Kilkis ore district, northern Greece, contains epithermal quartz-stibnite veins on the eastern side of the deposit, which crosscut a two-mica gneiss. Metallic mineralization in these veins consists of stibnite ...
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María José J. Espeche,Raúl Lira,Nicolás A. Viñas
Pág. 14 - 45
On-going mining operations in a marble quarry (Cantera Centro) from Malagueño, Sierra Chica de Córdoba, Argentina, have unearthed veins, veinlets and lenses of sulfides (pyrrhotite>pyrite?chalcopyrite>>sphalerite). These veins and lenses are up ...
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Daniel Marshall, Carol-Anne Nicol, Robert Greene, Rick Sawyer, Armond Stansell and Ross Easterbrook
Gold, present as electrum, in the Battle Gap, Ridge North-West, HW, and Price deposits at the Myra Falls mine, occurs in late veinlets cutting the earlier volcanogenic massive sulphide (VMS) lithologies. The ore mineral assemblage containing the electrum...
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Felipe Aguilera, Susana Layana, Augusto Rodríguez-Díaz, Cristóbal González, Julio Cortés, Manuel Inostroza
Pág. 166 - 196
A multidisciplinary study that includes processing of Landsat ETM+ satellite images, chemistry of gas
condensed, mineralogy and chemistry of fumarolic deposits, and fluid inclusion data from native sulphur deposits, has
been carried out in the Lastarria ...
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Mauricio Belmar,Diego Morata
Triassic-Jurassic volcano-sedimentary sequences in the Coastal Range of central Chile (34° 45/35°20'S) from the Vichuquén-Tilicura and Hualañé-Gualleco basins display metamorphic assemblages indicative of very low-grade conditions. Triassic and Lower Jur...
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Veronica Herrera,Jose Cembrano,Viviana Olivares,Shoji Kojima,Gloria Arancibia
The interplay between fluid transport and crustal deformation is fairly well known in theory; however, it has seldom been described in actual field examples. The structural, microstructural and microthermometric analysis of fault-vein networks spatially ...
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Nicolas Saric,Carlos Kreft,Carlos Huete
Pág. 317 - 332
Lo Aguirre is a medium-sized stratabound ore deposit, similar to El Soldado, Mantos Blancos and Michilla, that are still controversial in their origin, in spite of being important Chilean copper producers. The deposit is emplaced at the base of the Veta ...
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