NANO-MINERALS IDENTIFICATION BY DIFFERENT PHYSICAL TECHNIQUES

摘要

The combined investigation techniques (EMPA, ME, NGR) evidenced the third level of the inclusions at nano-size scale for different metamorphic deposits. So, NGR technique reveals the contribution of the (Mn, Fe) oxides - small particles at standard (RT) at very low temperature (LHeT) in the ~(57)Fe γ- ray signal. On the other hand the ME techniques confirmed the presence of the nanometric Fe and Mn oxides inclusions in manganoan fayalites (Razoare deposit) and "coral like" aggregates of nanometric Au -"solid- bubbles" in the gold ores of the Southern Carpathians.