• 责任者：Zou Yanrong (State Key Laboratory of Organic Geochemistry ; Guangzhou Institute of Geochemistry ; CAS ; Guangzhou 510640 ; China) ; Peng Ping’an
• 刊名：Acta Geologica Sinica
• 出版年：2008
• 卷期：82(1)
• 关键词：白垩纪 ; Cretaceous ; 缺氧环境 ; anaerobic environment ; 碳同位素 ; carbon isotopes
• 页码：p.31-36
• 图表：3 illus., 17 refs.
• 分类号：1200
• issnNo：ISSN0001-5717
• isbnNo：CN11-1951/P

Comparative study was carried out on the Cretaceous OAEs discovered in China. The results show that the carbon isotope of the leaf wax from the highland of the Luanping basin, Hebei province, is positive excursion, which probably responded terrestrially to the Weissert Anoxic Event. It is suggested that the Weissert OAE is a global, not local event. There are two mechanisms responsible for carbon isotope positive excursion of leaf wax: one during the early Cretaceous reflects CO₂ increase in atmosphere, and the other during the late Cretaceous was caused by terrestrial ecosystem change.