Introduction to an International Guide to Stratigraphic Classification,Terminology, and Usage

International Subcommission on Stratigraphic Classification [Report No. 7a; editor H. D. Hedberg]: Introduction to an International Guide to Stratigraphic Classification, Terminology, and Usage. Boreas, Vol 1, pp. 199–211. Oslo, 1st September, 1972. [Co-published with Lethaia, Vol. 5, pp. 283–295]. The International Subcommission on Stratigraphic Classification (ISSC), a subcommission of the IUGS Commission on Stratigraphy, has been working for the last 15–20 years towards the preparation of an International Guide to Stratigraphic Classification, Terminology, and Usage. The purpose of the Guide is to promote international agreement on principles of stratigraphic classification and to establish internationally acceptable stratigraphic terminology and rules of stratigraphic procedure. The Introduction explains the background of its preparation.