关于纽芬兰寒武系-奥陶系界线层型候选剖面Candidate for the Cambrian-Ordovician boundary stratotype of Newfoundland
穆恩之
摘要(Abstract)：
<正> (一) 近几年来,加拿大纽芬兰西部寒武系-奥陶系界线剖面经过不少人的调查研究,可能作为国际寒武系-奥陶系界线层型的呼声很高。目前看来,只有中国吉林浑江大阳岔的寒武系-奥陶系界线剖面可以与之抗衡。 1986年7月下旬在吉林省浑江市召开了寒武系-奥陶系界线国际会议,各国代表对浑江大阳岔的小阳桥等几个寒武系-奥陶系剖面进行了仔细的观察和认真的讨论。几个剖面中以小阳桥剖面最为杰出,不仅地层出露良好,而且化石多,保存佳,尤其是笔石丰富多彩。深为国际同行所称道。冶里组底部一层新笔石的发现,更引入注目。林尧坤
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作者(Author): 穆恩之
DOI: 10.19839/j.cnki.dcxzz.1987.01.004
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