201924&ensp·&enspA Study on Adsorption of Pb, Cu, Zn and Cd Onto Natural Clay Young Do, N. 1* and Park, H. I. 2 1 Senior Researcher, Research and Development Institute, LOTTE EandC, 104 Wonhyo1ga Yongsangu, Seoul, Korea 2 General Manager, Fl., Samsung Corp. Bldg.Institute of Technology, Samsung C and T, 23 th 132120, Seocho2Dong, SeochoGu, Seoul, 137956, Korea
20091021&ensp·&enspAkoluk (Ordu). Samples representing the typical ore of each deposit were studied with respect to base metals (Cu, Zn, and Pb), precious metals (Au and Ag), ore mineral paragenesis and CuSPb isotope geochemistry. Majority of these deposits occur associated with late Cretaceouspost late Cretaceous felsic volcanics.
2018815&ensp·&enspCarbonatereplacement Pb ZnAg deposits in the Lavrion district, Greece, are sp atially related to a 7 to 10 Ma granodiorite intrusion and various sills and dikes of mafic to acid composition. The Plaka granodiorite contains porphyry molybdenite mineralization and is spatially associated with a Cu