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本文主要涉及南岭以北、阴山以南、豫西以东地区的一系列陆相中、新生代盆地。这些盆地的早第三纪沉积因赋存有较丰富的油气和其它一些矿产而成为地质勘探的重要对象。近年来,由于海相化石的不断被发现,从而使人们对“陆相生油”等问题备加关注。值得注意的是,这种淡化海水内侵型陆相沉积,反映了一种特殊的“滨海岛湖”(多凹多凸)环境(朱夏、陈焕疆,1982)。我们试图对其沉积环境、形成背景和石油地质条件作以下的讨论和探索。
This paper mainly covers a series of continental Mesozoic and Cenozoic basins to the north of Nanling, south of Yinshan and east of west Henan. The Early Tertiary sediments in these basins are important targets for geological exploration due to abundant oil and gas and other mineral deposits. In recent years, due to the continuous discovery of marine fossils, people pay more attention to such issues as “oil from other continents.” It is noteworthy that this desalinated marine invaded terrestrial sediment reflects a special “coastal island lake” (polygranular and convex) environment (Zhu, Chen Huanjiang, 1982). We attempt to discuss and explore the sedimentary environment, background and petroleum geology.