Hein, James R.; Karl, S. M. (1983): Comparisons between open-ocean and continental margin chert sequences. Elsevier Sci. Publ. Co., Amsterdam, Netherlands, In: Iijima, Azuma (editor), Hein, James R. (editor), Siever, Raymond (editor), Siliceous deposits in the Pacific region; papers presented at the Second international conference, 36, 25-43, georefid:1984-005607