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Book Chapter

The Sequence Stratigraphic Significance of Trace Fossils: Examples from the Cretaceous Foreland Basin of Alberta, Canada

By
S. George Pemberton
S. George Pemberton
Department of Geology University of Alberta Edmonton, Alberta, Canada
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James A. MacEachern
James A. MacEachern
Department of Geology University of Alberta Edmonton, Alberta, Canada
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Published:
January 01, 1995

Abstract

Trace fossils represent both sedimentologic and paleontologic entities and, as such, represent a unique blending of potential environmental indicators in the rock record. Trace fossils and trace-fossil suites can be employed effectively to aid in the recognition of various types of discontinuities and to assist in their genetic interpretation. Ichnology may be employed to resolve surfaces of sequence stratigraphic significance in two main ways: (1) through the recognition of substrate-controlled ichnofacies, which mark time gaps between the original deposition of a unit (with or without softground burrowing) and later superimposition of a postdepositional trace-fossil assemblage, and (2) through careful analysis of vertical ichnological successions (analogous to facies successions). Integrating the data derived from substrate controlled ichnofacies with data from vertical ichnological successions provides a powerful tool for the recognition and interpretation of important sequence stratigraphic surfaces.

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Contents

AAPG Memoir

Sequence Stratigraphy of Foreland Basin Deposits: Outcrop and Subsurface Examples from the Cretaceous of North America

J.C. Van Wagoner
J.C. Van Wagoner
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G.T. Bertram
G.T. Bertram
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American Association of Petroleum Geologists
Volume
64
ISBN electronic:
9781629810850
Publication date:
January 01, 1995

GeoRef

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