摘要
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.
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.
关键词
中生代
岩浆
地球化学
长江中下游地区
矿化作用
钕同位素
锶同位素
the source system of Mesozoic magnatism
geochemical tracer
the Middle and Lower Yaugtze Valleys and adjsacent areas
