China's superimposed basins and relic basins feature in complex transformation of tectonic frameworks and multiple cyclicity.The evolution history of marine basins in Southern China represents a typical polycyclic movement.Their development and present status are characterized by basin superimposition and tectonic reworking.Based on the direct influences and key control of the tectonic dynamic differences and their temporal and spatial variations on hydrocarbon accumulation and its cyclicity in the marine strata in Southern China

the authors suggest that the hydrocarbon pooling in the polycyclic superimposed or relic basins in Southern China feature in "tectonic-pooling cyclicity".Based on correlation of tectonic cycles and hydrocarbon pooling cycles

hydrocarbon pooling in the Mesozoic-Palaeozoic marine strata can be divided into four tectonic-pooling cycles

namely the Caledonian

the late Indosinian-early Yanshan

the late Yanshan-early Himalayan and the late Himalayan cycles.Further study reveals that each tectonic-poolying cycle has its unique hydrocarbon accumulation and distribution controlled by its tectonic cycle.