Ore-controlling mechanism of down-faulted red basins over carbonaceous-siliceous-pelitic rock type uranium deposits at the southeastern margin of Yangtze continental block
One of the important ore-concentrated areas of carbonaceous-siliceous-pelitic rock type uranium deposits is the southeast continental margin of Yangtze plate. Sedimentary-exogenous transformation type and sedimentary-hydrothermal superimposed transformation type uranium deposits are always distributed at or near the edge of down-faulted red basins. By analyzing the relation of deposit distributions to down-faulted red basins, the connective effect and ore-controlling mechanism of carbonaceous-siliceous-pelitic rock type uranium deposits are proposed with marginal fractures of red basins in the paper.