摘要
取自东太平洋的 ＣＣ４８柱状样的底栖有孔虫 δ１３Ｃ研究结果表明，该柱状样 下，中新统地层至少存在３个碳移位事件，这些事件完全能与Ｌｏｕｉｔ等（１９８３）剖面相 比较，它们为该孔的地层划分提供了依据，为区域对比提供了标准，为古地磁地层 学和古生物地层学研究结果的正确与否提供良好判别标志。通过这一对比研究，可 以推定δ１３Ｃ地层是未来高分辨地层的主要研究方向之一。
The Pacific Miocene carbon isotopic stratigraphy was established by Louit et al. (1983) who used benthic foraminifera from seven DSDP cores, which consisted of 18 carbon events. The research on carbon isotopic events from core CC48 (9°7. 53'N, 141°1. 02'W) in the Pacific was found that there are 3 events:MC16,MC17 and MC18 (Fig. 1 ) based on Louit's research. The sedimentary ages inferred from 3 Carbon events were in accordance with those provided by paleomagnetic studay (Table 3). These events therefore provided indicators for regional stratigraphic correlation. Also,it was inferred from this research that carbon isotopic stratigraphy used in conjunction with biostratigraphy will provide an easily utilized and globally applicable correlation tool.
出处
《海洋科学》
CAS
CSCD
北大核心
1994年第1期37-41,共5页
Marine Sciences
基金
国家自然科学基金资助项目!(编号490702637)。
关键词
碳同位素
有孔虫
东太平洋
年代学
Carbon isotope event, Chronology, East Pacific Ocean
