Miall, Andrew D. Department of Geology, University of Toronto, Ontario, Canada.
- Correlation problem
- Sequence model
- Clastic-dominated sequences
- Carbonate-dominated sequences
- Sequences containing evaporites
- Scales and mechanisms of sequence development
- Links to Primary Literature
- Additional Readings
The study of stratigraphic sequences, defined as stratigraphic units bounded by unconformities. L. L. Sloss was the first to formally establish, in 1963, that Phanerozoic cratonic successions in North America could be subdivided into six broad sequences that spanned the entire interior of the continent. However, his work was based on widespread knowledge among North American petroleum geologists, going back to E. Blackwelder in 1909, that the stratigraphy of the continent could be subdivided into a limited number of unconformity-bounded sequences. In later work, Sloss and others demonstrated that these sequences could be correlated partially or entirely with similar successions within other continental interiors, in Russia and South America. With improvements in the acquisition and processing of reflection-seismic data by petroleum exploration companies, in the 1970s came the recognition that unconformity-bounded sequences could be recognized in most sedimentary basins. This was the beginning of an important development, seismic stratigraphy, which also included the use of seismic reflection character to make interpretations about large-scale depositional facies and architecture (Fig. 1). These breakthroughs were accompanied by the proposal by Peter Vail that the bounding unconformities are generated by erosion resulting from eustatic (worldwide) changes in sea level and they are therefore correlatable worldwide. These developments were rapidly accepted within the petroleum industry and brought about a revolution in stratigraphy that is still under way. See also: Seismic stratigraphy; Unconformity
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information