About This Item
- Full text of this item is not available.
- Abstract PDFAbstract PDF(no subscription required)
Share This Item
The AAPG/Datapages Combined Publications Database
AAPG Bulletin
Abstract
Volume:
Issue:
First Page:
Last Page:
Title:
Author(s):
Article Type:
Abstract:
Primary structures in sedimentary rocks are significant in the interpretation of ancient environments. They furnish data on the processes involved and on the general geologic setting inasmuch as most are formed at the time of deposition. Because numerous sedimentary structures are poorly understood, much information still is needed both from observation of modern sediments and from controlled experiments before general conclusions can be reached concerning the genesis of many rock types.
Principal varieties of stratification and cross-stratification are described with reference to environments in which they are known to have been formed. Some of these structures are typical of more than one environment; most environments are characterized by two or more varieties of structures. Knowledge concerning natural combinations or associations of structures, therefore, is especially useful in interpreting conditions of deposition.
End_of_Article - Last_Page 2036------------