Comments About the Relationships Between New Ideas and Geologic Terms in Stratigraphy and Sequence Stratigraphy with Suggested Modifications¹ (Geologic Note)

Gerald M. Friedman² and John E. Sanders³

©Copyright 2000. The American Association of Petroleum Geologists. All rights reserved.
¹Manuscript received January 31, 2000; revised manuscript received February 6, 2000; final acceptance March 15, 2000.
²Department of Geology, Brooklyn College and Graduate School of the City University of New York, Brooklyn, New York 11210; Northeastern Science Foundation, Inc., affiliated with Brooklyn College, Rensselaer Center of Applied Geology, Troy, New York 12181. For correspondence: Northeastern Science Foundation, 15 Third Street, P.O. Box 746, Troy, NY 12181; e-mail: [email protected]
³Professor of Geology Emeritus, Barnard College, Columbia University, New York, New York (now deceased).
Grateful thanks are extended to Peter R. Vail of Rice University, formerly of Exxon Production Research Company and AAPG Editor Neil F. Hurley, Colorado School of Mines, for reviewing this manuscript. Amos Salvador, University of Texas at Austin, coordinator of the Working Group on Sequence Stratigraphy (WG), and chairman of the International Subcommission on Stratigraphic Classification (ISS) of the IUGS (International Commission on Stratigraphy) provided encouragement. G. M. Friedman's remarks are adapted in part from a response on the receipt of the Sidney Powers Medal.

Episodes, the journal of the International Union of Geological Sciences (IUGS) encourages publications on the history of geology. In 1998, Friedman (Friedman, 1988) published in Episodes a personal perspective on the history of sedimentology and stratigraphy of the 1960s to mid-1980s. This paper concluded with the mid-1980s before sequence stratigraphy revolutionized the study of sedimentary deposits. The present comments involve the era of the 1980s and 1990s, especially after 1985, which was previously omitted in the paper in Episodes.