【摘要】 对南海众多热流数据的统计结果表明,南海为平均热流值高达78.3mW/m₂的高热流区.但热流分布是不均匀的;其中,中央海盆区最高,北、南和西缘接近总体平均值,而东缘最低.形成南海区域性高热流的主要原因是新生代的多期拉张构造运动,尤其是中新世以来的构造运动.而拉张程度的非均匀性是控制南海大地热流分布趋势的主要因素.更多还原

【Abstract】 Based on the statistics of the numerous heat flow data, it is revealed that the South China Sea is a high heat flow region with the average value of 78. 3mW/m2. The distribution of heat flow is nonuniform with the highest in the Central basin, normal in the northern, southern and western margins, and lowest in the eastern margin. It is the multiple stretching events during the Cenozoic, especially those from the Miocene, that lead to the regional high heat flow. And the heat flow distribution relates mainly to the nonuniformity of stretching.更多还原