At the south of Bardsir, Kerman province, Iran, southeastern part Urmia-Dokhtar magmatic arc (UDMA), a large number gabbroic intrusions are intruded into Eocene lava flows and pyroclastic rocks with form small stocks dykes. In this paper, geochemical variations, evolutions, origin these investigated. The studied characterized by fine-grained margins resulting from rapid cooling flow differentia...

SUMMARY The complex Moho topography beneath the northwestern Andes is result of multiple geodynamic processes during Cenozoic. To contribute to our understanding depth distribution this region, we inverted gravity data from two widely used satellite-derived sets (EGM2008 and EIGEN-6C4) one regional airborne Bouguer anomaly map (ANH2010). Their inversion allowed choosing ANH2010, based on lower ...

Abstract The Central Andes of South America host the largest known lithium resources in a confined area, but primary sources salar deposits and mobilisation process are still matter speculation. Chemical weathering at or near surface leaching hydrothermal systems active magmatic arc considered two main mechanisms Li extraction from source rock. strontium isotope composition typical offer insigh...

Abstract Clusters of early central volcanoes in the mid-Cenozoic Southern Rocky Mountain volcanic field (SRMVF; southwestern Colorado, USA) record sites initial magmatic focusing that led to assembly sizable upper-crustal magma bodies capable generating large ignimbrites. Peak growth at precursor andesitic was followed by extended periods (0.5 >2 m.y.) reduced eruptive activity during in...

• Ordovician and Lower Devonian OMZ rocks contain an important 1 Ga detrital zircon population. Sahara metacraton provided the grains in Ordovician-Devonian rocks. equivalent terranes were translated eastwards during final Cadomian tectonics. The Ossa-Morena Zone Iberia, northern France Central Europe, are thought to be paleogeographically linked West African Craton at Ediacaran early Paleozoic...

Porphyry deposits are copper-rich orebodies formed by precipitation of metal sulphides from hydrothermal fluids released from magmatic intrusions that cooled at depth within the Earth's crust. Finding new porphyry deposits is essential because they are our largest source of copper and they also contain other strategic metals including gold and molybdenum. However, the discovery of giant porphyr...

A program of geologic mapping and lithogeochemical and geochronological sampling has been carried out over a 745-km area of the Atacama Desert surrounding the porphyry Cu deposits at Escondida, Zaldívar, and Chimborazo (Cordillera de Domeyko, northern Chile). The purpose of this study was to examine the regional tectonic and magmatic setting of this preeminent porphyry Cu district for evidence ...