摘要
胜利油区第三纪气候温暖 ,属亚热带型。早第三纪气候暖热 ,一般属中亚热带型。沙河街组沉积时期为增温期 ,气候属南亚热带型 ;孔二段及东一段沉积时期为降温期 ,气候属北亚热带型。晚第三纪气温下降 ,但仍较温暖 ,馆下段沉积时期气候属北亚热带型、馆上段沉积时期气温上升 ,为中亚热带型 ;明化镇组沉积时期气温再度下降。研究区第三纪有一个潮湿期即孔二段沉积时期 ,两个湿润期即沙三段、沙一段中部至馆陶组沉积时期 ;三个干旱期即孔一段至沙四段、沙二段上部至沙一段下部、明化镇组沉积时期。
It was warmly hot in early Tertiary in Shengli oil field and generally belongs to middle subtropical type——It was temperature increasing period in Shahejie formation depositing, and belongs to south subtropical type; temperature-reducing period in the second section of Kongdian formation and the first section of Dongying formation, and belongs to north subtropical type. The temperature descended in late Tertiary, but it was still very warm——it belongs to north subtropical type in the lower section of Guantao formation; middle subtropical type in the upper section of Guantao formation as temperature increasing; and the temperature descended again in Minghuazhen formation. In the study area, there are one moist period (the second section of Kongdian formation), two humid periods (the third section of Shahejie formation, and from middle part of the first section of Shahejie formation to Guantao formation) and three dry periods (from the first section of Kongdian formation to the fourth section of Shahejie formation, from the upper part of the second section of Shahejie formation to the lower part of the first section of Shahejie formation, and Minghuazhen formation) in Tertiary.
出处
《山东地质》
2000年第1期22-28,共7页
Geology of Shandong
关键词
古气候
第三纪
胜利油区
山东
Sporopollen
climate
Tertiary
Dongying in Shandong province
