2026-03-21 16:47 浏览次数 19
晚始新世
hydrocarbon pooling in subei basin has the following characteristics:(1) the late eocene is the pooling period;
苏北盆地的成藏特点是:1)成藏时间为始新世晚期;
the main patterns of the convergent structure are the ramp type and the superimposed one. and their forming periods are late eocene oligoecne.
会聚构造型式以对沖式及叠覆式为主要类型,形成时期在晚始新世—渐新世。