许杰笔石论文集简介     点此下载全文 引用本文：.1986.许杰笔石论文集简介[J].地球学报,8(1):50. DOI： 摘要点击次数: 5484 全文下载次数: 5513 中文摘要:Some of our views on the correlation of graptolite and some shelly fossil sequence from the latest Ordovician to earliest Si'urian and on the division of the Ordovician-Silurian boundary have been presented in the past papers (Wang et al., 1980, 1983a, b; Lai et al., 1982; Xu et al., 1983). The present paper will further inquire into these problems in the light of biostratigraphy, isotope age dating sedimenatry facies and priliminary paleomagnetic research from the Ordovician-Silurian boundary sections of the eastern Yangzi (Yangtze) Gorges (pl. 1-2).   Brief Introduction of Selected Works on Graptolites by Xu Jie 查看全文  查看/发表评论  下载PDF阅读器

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