Background Learning Topic Summary       Close
Stratigraphic Disciplines and Sequence Stratigraphy

Estimated Time to Complete:

4 hours 20 minutes

(average of 20 minutes per Subtopic)

Since its inception, sequence stratigraphy has become the most commonly used stratigraphic discipline for developing a basinwide correlation framework, yet aspects of its methods and terminology remain controversial. This topic reviews the history and examines the models of base-level change that underlie the concept. The key surfaces (material- and time-based) and the units they delineate (sequences, systems tracts, and parasequences) are explained and exemplified. Hierarchy and causality are discussed in relation to eustacy and tectonics. Sequence stratigraphic principles are applied to correlation and facies analysis in the context of petroleum exploration. The perspective is that of Dr. Ashton Embry.

Expand All
Total Number of Subtopics: 13
  • expand/collapse Introduction to Stratigraphic Disciplines and Sequence Stratigraphy
    • Stratigraphy and Stratigraphic Disciplines
    • Stratigraphic Surfaces and Time
    • Material-based Stratigraphic vs. Chronostratigraphy
    • Sequence Stratigraphy as a Stratigraphic Discipline
    • Theoretical Foundations for Stratigraphic Surfaces
  • expand/collapse Historical Development of Sequence Stratigraphic Concepts and Methods
    • Outcrop studies, pre-1977
    • Exxon Sequence Stratigraphic Model
    • Genetic Stratigraphic Sequence
    • Time-based Sequence Model
    • Transgressive-Regressive T-R Sequence
    • Another Time-based Depositional Sequence Boundary
    • Summary
    • References
  • expand/collapse Material-based Surfaces of Sequence Stratigraphy
    • Introduction to Material-based Surfaces
    • Subareial Unconformity
    • Regressive Surface of Marine Erosion (RSME)
    • Shoreline Ravinement (SR)
    • Maximum Regressive Surface (MRS)
    • Maximum Flooding Surface (MFS)
    • Slope Onlap Surface (SOS)
    • Sequence Stratigraphic Surface vs. Lithostratigraphic Surface
    • References
  • expand/collapse Base Level Change Model for the Generation of Sequence Stratigraphic Surfaces
    • Base Level Change Introduction
    • Model Variance
    • References
  • expand/collapse Time-Based Surfaces of Sequence Stratigraphy
    • Time Based Surfaces Introduction
    • Chronostratigraphic Surfaces
    • Old Surfaces / New Definitions
    • Conceptual Surfaces BSFR and CC
  • expand/collapse Units of Sequence Stratigraphy - Sequences
    • Genetic Stratigraphic Sequence
    • Introduction to the Depositional Stratigraphic Sequence
    • Determining the Validity of a Proposed Depositional Sequence Boundary
    • Exxon Material-based Depositional Sequence Boundaries
    • Valid, Material-based, Depositional Sequence Boundaries
    • Time-based Depositional Sequence Boundaries
    • Employing the Basal Surface of Forced Regression
    • Summary
  • expand/collapse Units of Sequence Stratigraphy - Systems Tracts
    • Systems Tracts Introduction
    • Material-based Approach with Three Systems Tracts
    • Material-based Approach with Two Systems Tracts
    • Time-based Approach for Systems Tracts
    • Time-based Approach with Four Systems Tracts
    • Time-based Approach with Three Systems Tracts
    • Summary of the Various Classification Schemes for Systems Tracts
  • expand/collapse Units of Sequence Stratigraphy - Parasequences
    • Parasequences Introduction
    • Parasequence as a Lithostratigraphic Unit
    • Parasequence versus Sequence
    • Summary
  • expand/collapse Sequence Boundary Hierarchy
    • Sequence Boundary Introduction
    • Theoretical Hierarchy
    • Why a Theoretical Hierarchy is not Practical
    • Empirical Hierarchy
    • Assessing Sequence Boundary Magnitude
    • First and Second Order Boundaries
    • 3rd, 4th, 5th and 6th Order Boundaries
    • Greenhouse Boundaries versus Icehouse Boundaries
    • Establishing a Hierarchy for a Basin
    • Summary Sequence Boundary Hierarchy
  • expand/collapse Base Level Drivers
    • Introduction
    • Drivers of Base Level Change
    • Eustatic Sea Level Change as a Base Level Driver
    • Recognizing Eustatically - Generated Sequence Boundaries
    • Tectonics as a Base Level Driver
    • Extent of Tectonically - Generated Sequence Boundaries
    • Base Level Drivers Summary
  • expand/collapse Correlation with Sequence Stratigraphy
    • Introduction
    • Sequence Stratigraphic Surfaces Useful for Correlation
    • Correlating Interbedded Nonmarine and Shallow Marine Strata
    • Correlation in Fluvial Strata
    • Correlating Deep Marine Siliciclastics
    • Correlating Carbonate Strata
    • Summary
  • expand/collapse Sequence Stratigraphy - Facies Analysis Applied to Petroleum Geology
    • Facies Analysis Introduction
    • Sequence Analysis and Facies Prediction
    • Concluding Remarks
  • expand/collapse Sequence Stratigraphy: References and Additional Information
    • References
    • Additional References
(Use the '+' and '-' buttons to expand or collapse each Subtopic Title individually for details.)