Abstract Southwestern Sardinia, Italy, hosts several skarn, W–Sn–Mo greisen and hydrothermal deposits related to a 289±1 Ma Late Variscan granite suite. Among them, the most representative scheelite-bearing skarns belong San Pietro Sinibidraxiu localities, in Monte Tamara area, Sulcis region. The deposit is typical calc-silicate skarn whereas sharply bounded orebody hosted marble unit. Optical ...

background: the purpose of this study was to evaluate the levels of zinc (zn), copper (cu), iron (fe) and zinc/ cop­per ratio in the serum of patients with cutaneous leishmaniasis in qom province, center of iran. methods: serum levels of zinc and copper were determined by flame atomic absorption spectrophotometer and serum iron concentration was measured by using an auto analyzer. the study gro...

the study area is a part of cenozoic magmatic belt of central iran, which is located in the west of yazd porovince. contact metamorphism and skarn occurred in conglomerate part of sngestan formation. the oligocene intrusion bodies of ali-abad-darreh zereshk are leucocerate and have the chemical composition of granite to granodiorite with calc-alkaline affinity from volcanic arc geological setti...

We report the iron (n = 13), copper sulfur 25) and lead 31) isotope compositions of mineralized samples from porphyry, skarn epithermal mineralization in Yenice region that lies east Biga Peninsula, Turkey. The vast majority isotopic data were analyzed world-class Arapuçandere Pb-Zn-Cu (Ag-Au) deposit is one best example intermediate sulfidation deposits within Serbo-Macedonian-Rhodope metallog...

• Geochronology and petrogenesis of the ore-forming intrusions from Lietinggang-Leqingla deposit. Fe-Cu mineralization was controlled by mantle materials weakly fractional crystallization. An ancient crustal component extensive fractionation crystallization contributed to Pb-Zn mineralization. The deposit has magmatism conditions that allow iron-copper lead-zinc form simultaneously. is a repres...

El skarn Santa Isabel de Moro es un cálcico, localizado en los flancos occidentales la Cordillera Negra el norte del Perú, mineralización se ha originado por emplazamiento plutones granodiorita y cuarzodiorita las calizas Formación Santa. objetivo este estudio caracterizar minerales texturas rocas encajantes estructuras mineralizadas para determinar origen evolución depósito. La metodología emp...

Studying the activation, migration and precipitation processes of ore-forming elements is essential for understanding genesis mechanisms skarn deposits. A typical profile formed by intrusion Yanshanian granodiorite into Carboniferous carbonate strata was studied. The highly consistent with classic profile, ranging from intrusion, weak alteration belt, belt (inner outer belt) mineralization (mai...

The Ayawilca deposit in Pasco, Peru, represents the most significant recent base-metal discovery central Andes and one of largest undeveloped In resources globally. As 2018, it hosts an 11.7 Mt indicated resource grading 6.9% Zn, 0.16% Pb, 15 g/t Ag, 84 In, additional 45.0 inferred 5.6% 0.23% 17 67 a separate Sn-Cu-Ag 14.5 0.63% Sn, 0.21% Cu, 18 Ag. Newly obtained U–Pb dates for cassiterite by ...