“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
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SEDIMENTARY DEPOSITIONAL SYSTEMS
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Fluvial depositional systems
Deltaic, shoreline and shelf depositional systems
Deep sea depositional systems
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PARASEQUENCES
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Parasequences
Marine flooding surfaces
Parasequence stacking patterns
Exercise 2.1 (Parasequence correlation simple)
Exercise 2.2 (Parasequence correlation advanced)
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SEQUENCE STRATIGRAPHY:
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INTRODUCTION, BACKGROUND
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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)
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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
BASIC CONCEPTS
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Regression, transgression
Retrogradation, progradation
Eustasy, Relative sea-level, accommodation space
Trajectories
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SURFACES AND SYSTEMS TRACTS:
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REGRESSIVE
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Normal regression
Forced regression
Regressive surface of marine erosion
Subaerial unconformity/incised valleys
Shelf-edge deltas
Basin floor systems
SURFACES AND SYSTEMS TRACTS:
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TRANSGRESSIVE
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Transgression
Ravinement surface
Maximum flooding surface
THE CONTINENTAL PERSPECTIVE
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Exercise 2.4 (Brent Group case study)
DAY 3
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SEISMIC SEQUENCE STRATIGRAPHY
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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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