The mechanism that controls regional mineralization must be governed by a seriesof geochemical reactions in relation to the source system of magmatism. In this respect, the geological bodies must have been overprinted...The mechanism that controls regional mineralization must be governed by a seriesof geochemical reactions in relation to the source system of magmatism. In this respect, the geological bodies must have been overprinted by various kinds of tracers in terms of either chemical elements or isotopes. For this reason, the problem may be better approached by treating thelithosphere as a whole with due considerations given to the various tracer elements and isotopesand the various media of the magmatism (magmatic as well as sedimentary rocks). Presentedin this paper are the results of this attempt based on a great wealth of available data concerningthe source system of Mesozoic magmatism in the Middle and Lower Yangtze Valleys and adjacent areas.展开更多
文摘The mechanism that controls regional mineralization must be governed by a seriesof geochemical reactions in relation to the source system of magmatism. In this respect, the geological bodies must have been overprinted by various kinds of tracers in terms of either chemical elements or isotopes. For this reason, the problem may be better approached by treating thelithosphere as a whole with due considerations given to the various tracer elements and isotopesand the various media of the magmatism (magmatic as well as sedimentary rocks). Presentedin this paper are the results of this attempt based on a great wealth of available data concerningthe source system of Mesozoic magmatism in the Middle and Lower Yangtze Valleys and adjacent areas.