闽西溪口组沉积环境及构造意义

THE SIGNIFICANCE OF DEPOSITIONAL ENVIRONMENT AND TECTONIC SETTING OF THE XIKOU FORMATION (T_1x) IN THE WESTERN FUJIAN

对闽西溪口组(T_1x)的沉积特征、岩石化学成分、构造形变的研究表明,它是在海水较深的动荡环境下快速沉积而成的一套位于与活动陆缘相连的前陆盆地底部的复理石沉积,它和上覆沉积物一起构成了一套完整的前陆盆地沉积序列,其形成与东南沿海中生代早期的一次较为温和的造山作用有关。

The Xikou Formation (T1x) in the western Fujian is a set of flysch deposits attributed to the basement of a foreland basin and is a rapid sedimentation in deep-marine and turbulent environments of active continental margin. The flysch sequences constitutes a complete series of sedimentary sequences of the foreland basin. The development of the sequences would be closely related with rather mild orogenesis during the early Mesozoic time along the coastal area of the southeast China.