Mineralogical and petrographic studies require analytical methods capable to underline the repartition of major trace elements within geological samples. The EPMA (Electron Probe Micro Analyzer) conventional method used for such investigation, but on restrictive zones, is verge be reached by μLIBS (micro Laser-Induced Breakdown Spectroscopy) μXRF X-Ray Fluorescence) techniques allowing elementa...

Lithium minerals become a sub-economic raw material for lithium production to fulfill the demand. This study is about extraction from mica schist using roasting and leaching processes. The located in Kebumen, Indonesia was used phenomena during process. Sodium sulfate as agent while 0.36 M sulfuric acid agent. Solid/liquid ratio (1:5, 1:10, 1:15 1:20 (g/mL)) time (30, 60, 90 120 minutes) were v...

A synthesis of the knowledge Schist-Greywacke Domain (SGD) in Portugal is here presented. Until recently, this sequence assumed designation Dúrico-Beirão Supergroup composed by Douro Group (DG) and Beiras (BG). The DG considered Neoproterozoic – Cambrian age BG age. identification mapping an unconformity as Cadomian identified Spain, which splits “lower Alcudian” “upper Alcudian”, a turning poi...

In the Palaeoproterozoic Nagssugtoqidian orogen of West Greenland reworked Archaean and juvenile Proterozoic orthogneisses occur side by side and are difficult to differentiate in the field. Archaean gneisses have tonalitic to trondhjemitic compositions with relatively low Al2O3 and Sr, and may have been derived from magmas formed by melting of basaltic or amphibolitic rocks at moderate pressur...