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...

Several physical parameters and anisotropy related to rock textural arrangements, schistosity weakness planes such as cracks joints affect the P-wave velocity (VP). First, VP of quartz-mica schist a common type widespread metamorphic was compared with jointed homogeneous limestone specimens clarify effect these two different types anisotropies. The results showed that texture is stronger than l...

soil conservation and control of erosion is a basic problem in all countries. the goal of this research is to estimate erosion and sediment yield in ekbatan dam drainage basin by erosion potential method (epm), using geographic information system (gis). the basin is located in hamedan province, west of iran, in a cold and semi- arid region, with an average annual rainfall of 334mm. the study ar...

the chadegan metamorphic complex is a wnw-ese- trending antiformal structure located in sanandaj-sirjan structural zone, iran.the inner core of the structure is made of orthogneiss, containing eclogitic lenses. schists and marbles lie structurally above theorthogneiss and crop out in the external limbs of the antiformal dome. two main deformational episodes have been documented in theschists an...