[1] 1 张勤文等,1984,在前寒武纪和寒武纪界线上的地质事件,“国际交流地质学术论文集”,143-I48页,地质出版社。

2 范德廉等,1981,南方几省下寒武统黑色岩系及层状多元素富集层沉积岩石学研究,23-45页,科学出版社。

3 Fan Delian, 1983, Poly-elements in the Iower Cambrian black shale series insouthern China, in "The significance of trace elements in solving petrogeneticproblems and controversies"',ed, by Prof, S.S.Augustithis, p.441-474,TheoYhrastus publications S.A.,Athens, Greece.

4 Fan Delian et al.,198.1, The tower Cambrian black shale series and the iridiumanomaly- in sourth China, in "Developments in geosciences', p.215-224.SciencePress, Beijing, China.

5 Ganapathy-, R.I980,Science, V.209, p.921-923.

6 Hsii,K. J .et al.,1985, Nature,V.3I6, p.171-188.

7 Jenkyns, H.C.1980, Geol.Soc.London, V.137, p.171-188

8 Legget, J.K.1980, Geol. Soc.London.V.137, p.139-156.