Report of the Twenty-second Session, India, 1964: Genetic problems of ores

acidity albite alkaline alteration Anzass deposit apatite associated basic beds belt biotite blue dust carbonate chalcopyrite chemical chert chlorine chromite chromite deposits composition concentration copper crystallisation crystals deformation district Econ erosion level facies faults ferruginous flaky fluorite folds formed fractures gangue gangue minerals garnet genetic Geol geological geosynclinal gneisses goethite gold grains granitoids hematite Hutti hydrothermal India indicate intrusive iron-formations Joda East Khondalites layers leaching lodes magmatic magmatogene magnetite magnetite deposits manganese massive metal sulphides metallogenic metamorphism metasomatic minerais mineralisation mines Noamundi occur oolites ore-forming origin oxides Paleogene pegmatites phase phyllite post-magmatic solutions precipitation pressure processes pyrite pyrrhotite quartz quartzites reef region scapolite schists sedimentary sediments shales shear zone Sikhote-Alin silicates Singhbhum skarn soda granite soluble stage sulphides surface Surv tectonic temperature texture thickness tion ultrabasic Upper Cretaceous uranium veins volcanic wall rock АН СССР