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James D. Howard, 1972. "Trace Fossils as Criteria for Recognizing Shorelines in Stratigraphic Record", Recognition of Ancient Sedimentary Environments, J. Keith Rigby, William K. Hamblin
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Biogenic sedimentary structures offer a new and exciting approach to the interpretation of ancient sedimentary environments. Although trace fossils have been studied extensively by European geologists since early in this century, it is only in recent years that they have received much more than passing mention in North America. The increased interest in tracks, trails, burrows, and borings is due primarily to the environmental or facies approach to the study of sedimentary rocks.
Appreciation of biogenic sedimentary structures as facies indicators has been influenced significantly by the empnasis on studies of physical sedimentary structures which in the past two decades have introduced many new keys to paleoenvironment interpretation. Additional impetus to the utilization of trace fossils has come from detailed studies of modern sediments which illustrate clearly the important relations that exist between the animals and sediments in a particular environment.
In the study of ancient and present-day nearshore sedimentary environments, the facies significance of biogenic sedimentary structures can be demonstrated readily. Field studies which utilize trace fossils in conjunction with physical sedimentary structures, lateral and vertical changes in the sedimentary sequence, offer new opportunities in the search for stratigraphic accumulations of oil and gas.
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Recognition of Ancient Sedimentary Environments
This volume contains a series of papers presented as part of a symposium held in Dallas, Texas, April 1969, at the annual national meeting of the Society. The problem of recognizing ancient sedimentary environments in the stratigraphic record is basic to essentially every aspect of research in sedimentary rocks. The publication will summarize much of what we currently know concerning environmental interpretation.