联合古陆演化周期中超大型含煤及含油气盆地的形成

联合古陆———Ｐａｎｇｅａ的拼合与裂解反映了地球系统内部的巨大变革，这一过程根本上改变了浅部圈层的构造和环境。地史上超大型含煤盆地及含油气盆地与Ｐａｎｇｅａ的演化周期密切相关。在石炭纪及二叠纪拼合过程中形成了一系列超大型聚煤盆地；晚侏罗世Ｐａｎｇｅａ开始裂解，出现全球性裂陷作用期，大西洋张开，许多与裂陷有关的大型叠合盆地形成。在这些盆地中已发现十余个与晚侏罗世烃源岩有关的巨型含油气系统。上述情况表明Ｐａｎｇｅａ演化过程中出现了对能源资源聚集极为有利的古构造、古环境和古气候条件。

FORMATION OF THE GIANT COAL BEARING AND HYDROCARBON BEARING BASINS DURING THE PANGEA EVOLUTION CYCLE

The matching and splitting processes of the supercontinent Pangea had controlled the tectonism of lithosphere and surface environment, both of which had exerted great influences on the basin formation. Many giant coal bearing basins occurred during the matching stage of Pangea in Carboniferous and Permian time. While many mega petroleum systems with Upper Jurassic source rocks were formed in the superimposed basins during the splitting stage of Pangea. All of these indicate that the optimum conditions of tectonic, paleoenvironment and paleoclimate for coal and petroleum accumulation had existed during the evolution process of Pangea.