干旱区生态环境知识资源中心

Global lithologic-paleogeographic maps for the Aptian, Albian, Cenomanian, and Turonian stages of the Cretaceous were compiled for the first time using common methods and taking into consideration the paleogeographic environment of continents and oceans. Particular features of the global distribution of arid and humid environments on continents were analyzed to distinguish belts and zones of evaporite and red-bed sedimentation, coal accumulation, and bauxite and kaolin formation. It is shown that climatic zonality and the location of arid and humid environments on continents were dependent on the arrangement of continents and oceans on the surface of the Earth.