Abstract
BULLETIN 98 of the National Research Council of America (1935, pp. 246) embodies the report of the Committee on Sedimentation for 1932-34, and indicates the immense activity of investigators in this subject as well as of the members responsible for the report. The latter includes about a thousand references to current literature and in itself represents a commendable example of bibliographic and abstracting work. The topics discussed include European studies and varved sediments (Antevs); German contributions (Becker); studies at Stanford University (Blackwelder); glacial sediments (Leighton and Townley); British researches (Milner); mineralogy of sediments (Pettijohn); hydrologic and hydro-graphic investigations (Piper); chemical aspects (Steiger); recent sediments and petroleum source-beds (Trask); miscellaneous types (Twenhofel); marine bottom deposits (Vaughan); oxidation-reduction conditions in the Gulf of Catalina (ZoBell); and terminology of coarse sediments (Wentworth, with notes by Boswell). The last of these is a contribution of very general interest. The Sub-committee on Nomenclature and Classification of Sediments is studying the terminology of eleven groups, and in his introduction to the present report, Trowbridge holds out the prospect that following up the two reports already issued on volcanic and coarse sediments, others may be expected at the rate of two or more per year. The Committee is to be congratulated on the thoroughness of its work. It is obvious that without such a review geologists could not possibly keep in touch with the widely varied results of current progress in a branch of their science which is fundamental to its main object and to many of its applications.
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Sedimentation. Nature 136, 545 (1935). https://doi.org/10.1038/136545a0
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DOI: https://doi.org/10.1038/136545a0