Fields of carbon metasomatism - indicator of ore deposits

Carbonic metasomatites are very interesting subjects in recent years. The carbonic metasomatites were discovered in ore regions of Central Asia and then in Siberia and other regions of Russian Federation. By the present, the carbonic metasomatite have been discovered in ore regions with various hydrothermal mineralization. The carbonic metasomatites are characterized by black color and fine-grained structures. The carbonic metasomatite contains graphite. Graphite is associated with ilmenite, rutile, sulfides of endogenous origin. The carbonic metasomatite contains increased amounts of metals such as V, Ti, Co, Cu, Zn, Pb, Sn, As, W, Au, Re, Ag, Re, Se, and others. Therefore, the somatites are indicators of ore fields

Fields of carbon metasomatism - indicator of ore deposits

Carbonic metasomatites are very interesting subjects in recent years. The carbonic metasomatites were discovered in ore regions of Central Asia and then in Siberia and other regions of Russian Federation. By the present, the carbonic metasomatite have been discovered in ore regions with various hydrothermal mineralization. The carbonic metasomatites are characterized by black color and fine-grained structures. The carbonic metasomatite contains graphite. Graphite is associated with ilmenite, rutile, sulfides of endogenous origin. The carbonic metasomatite contains increased amounts of metals such as V, Ti, Co, Cu, Zn, Pb, Sn, As, W, Au, Re, Ag, Re, Se, and others. Therefore, the somatites are indicators of ore fields

Unique ore complexes in the north-western sector of the Pacific ore belts

Using hierarchic ore-formation analysis methods it is shown that thin sulfidization zones in several regions represent the formations, whose composition most fully reflects mineralogical types of polychronous and monochronous ore-formation series (ore complexes). All members of the particular series possess certain indices of mutual mineralogical-geochemical relationship. It is shown that the large thin fluidization zones in terrestrial and volcanic-origin rock massifs have, apparently, different nature - from hydrothermal-sedimentary to epigenetic (plutonic-fluid). These, practically non-investigated zones, are the most important ore substance sources at porphyric and vein field formation. Together with many satellite deposits, including monochroous copper-, gold-, tin-porphyric series, they form unique ore complexes or polychronous ore-formation series

Early Cretaceous alkali basalts and carbonaceous metasomatites in the Far East maritime region

For the first time K-Ar dating data (116-104 mln years) and geochemical composition characteristics are given for albian alkali basic rocks. The similarity of structural position, age, geochemical peculiarities implies the relation between graphite-ilmenite metasomatites and plum alkali basalts. Graphite-ilmenite metasomatites contain high concentrations of some rare and noble metals in the form of nano-admixtures and are regarded as products of plutonic reduced fluids. The revealed polychronic alkali basite belt controls the center of Dalnegorsk mineralization block with the unique in scale Paleogene deposit of skarn-borosilicate ores and accumulation of skarn and vein polymetal fields

Unique ore complexes in the north-western sector of the Pacific ore belts

Using hierarchic ore-formation analysis methods it is shown that thin sulfidization zones in several regions represent the formations, whose composition most fully reflects mineralogical types of polychronous and monochronous ore-formation series (ore complexes). All members of the particular series possess certain indices of mutual mineralogical-geochemical relationship. It is shown that the large thin fluidization zones in terrestrial and volcanic-origin rock massifs have, apparently, different nature - from hydrothermal-sedimentary to epigenetic (plutonic-fluid). These, practically non-investigated zones, are the most important ore substance sources at porphyric and vein field formation. Together with many satellite deposits, including monochroous copper-, gold-, tin-porphyric series, they form unique ore complexes or polychronous ore-formation series

Early Cretaceous alkali basalts and carbonaceous metasomatites in the Far East maritime region

For the first time K-Ar dating data (116-104 mln years) and geochemical composition characteristics are given for albian alkali basic rocks. The similarity of structural position, age, geochemical peculiarities implies the relation between graphite-ilmenite metasomatites and plum alkali basalts. Graphite-ilmenite metasomatites contain high concentrations of some rare and noble metals in the form of nano-admixtures and are regarded as products of plutonic reduced fluids. The revealed polychronic alkali basite belt controls the center of Dalnegorsk mineralization block with the unique in scale Paleogene deposit of skarn-borosilicate ores and accumulation of skarn and vein polymetal fields