“Sequence stratigraphy: principles and applications”
SCUOLA DI DOTTORATO IN SCIENZE DELLA TERRA
PhD SCHOOL IN EARTH SCIENCE
DIPARTIMENTO DI GEOSCIENZE DEPARTMENT OF GEOSCIENCES
“Sequence stratigraphy: principles and applications”
Prof. W. Hellan-Hansen
University of Bergen
AIM AND CONTENT
The aim is to provide students with a working knowledge of the theoretical framework of sequence stratigraphy in siliciclastic roks and practical experience of the techniques of analysis of sedimentary succession using this approach.
Students will learn how to use evidence for changes in base level and sediment supply within a succession as a tool for stratal correlation and for predicting facies distributions in time and space.
DAY 1 DAY 2
SEDIMENTARY DEPOSITIONAL SYSTEMS
• Fluvial depositional systems
• Deltaic, shoreline and shelf depositional systems
• Deep sea depositional systems
PARASEQUENCES
• Parasequences
• Marine flooding surfaces
• Parasequence stacking patterns
• Exercise 2.1 (Parasequence correlation simple)
• Exercise 2.2 (Parasequence correlation advanced)
SEQUENCE STRATIGRAPHY:
INTRODUCTION, BACKGROUND
• What is sequence stratigraphy?
• Relations to other stratigraphic disciplines
• Breaks, Walther’s law and sequence stratigraphy
• Exercise 1.1 (Wheeler diagram simple)
• Exercise 1.2 (Wheeler diagram advanced)
• Key surfaces and stacking patterns
• Data
• Exercise 1.3 (Vertical succession breakdown)
BASIC CONCEPTS
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Regression, transgression
Retrogradation, progradation
Eustasy, Relative sea-level, accommodation space
• Trajectories
ACCOMMODATION-SUPPLY CYCLES
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Systems tracts
Ramp systems
Shelf-slope-basin systems
Accommodation-supply cycles
Exercise 2..3 (Sequence correlation)
Sequence hierarchy
SURFACES AND SYSTEMS TRACTS:
REGRESSIVE
• Normal regression
• Forced regression
• Regressive surface of marine erosion
• Subaerial unconformity/incised valleys
• Shelf-edge deltas
• Basin floor systems
SURFACES AND SYSTEMS TRACTS:
TRANSGRESSIVE
• Transgression
• Ravinement surface
• Maximum flooding surface
THE CONTINENTAL PERSPECTIVE
• Exercise 2.4 (Brent Group case study)
DAY 3
SEISMIC SEQUENCE STRATIGRAPHY
• Underlying concepts
• Interpretation methodology
• Reflection terminations
• Seismic surfaces
• Seismic facies analysis
• Reflector geometry
• Attributes
• Seismic geomorphology
• Resolution
• Exercise 3.1 (Seismic stratigraphic interpretation procedure)
• Exercise 3.2 (Clinoform exercise)
WHERE:
Dipartimento di Geoscienze
Università di Padova, Via G. Gradenigo 6. Padova
WHEN:
8-10 October 2012
REGISTRATION
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