Rising economic value of a large number of metals as a result of their importance for new technologies and industrial development has renewed worldwide interest for mineral exploration and detailed studies of ore deposits. The Dill’s (2010) “chessboard” classification of mineral deposits is the most recent attempt to provide an exhaustive overview of all mineral deposits known to date. However,...

In the Dusina area, which is built up of Lower Palaeozoic metasediments, Devonian carbonate complex and Upper Palaeozoic metarhyolites unconformably overlain by Upper Permian sediments, numerous ore occurrences have been investigated: (a) "stratabound" metamorphic hematite deposits in the pre-Devonian metasediments; (b) epigenetic veins and pipes of barite (& calcite) with accessory Hg-tetrahed...

Abstract Although (Soddy, Nature 92:399–400, 1913) inferred the existence of isotopes early last century, it was not until discovery neutron by (Chadwick, 129:312, 1932) that were understood to result from differing numbers neutrons in atomic nuclei. (Urey, J Chem Soc 1947:562–581, 1947) predicted different would behave slightly differently chemical (and physical) reactions due mass differences...