Purpose and Scope
These notes are for a course on the use of primary structures and stratification sequence as tools for interpretation of depositional environments of clastic sediments. SEPM supported a short course on this topic in 1975, SEPM Short Course No. 2. At that time, we anticipated teaching the course perhaps two or three times in the period of a year or two, fully realizing that the notes were limited in scope and would be outmoded by research progress within a few years. The demand for copies of those notes has been surprising and persistent, even up to last year. This suggests that geologists, and perhaps especially students, find inexpensive publications with this slant useful. However, if the notes are not amended to stay abreast of progress, the students are not fully served. The alternative, of course, is to revise the notes, and we have chosen to do this.
The emphasis in the first short course was to provide a concise review of the factors that had led to the renaissance in clastic sedimentology during the decade leading up to 1975. We attempted to provide an organized summary of both experimental studies and ideas on bed forms and primary sedimentary structures that was then relatively new and to show how this information could be applied to solving geologic problems. Our goals remain rather similar for this set of notes. Obviously, considerable progress has been made: much more information is available through the work of the far more numerous investigators, more and newer