“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
• Regression, transgression
• Retrogradation, progradation
• Eustasy, Relative sea-level,
accommodation space
• Trajectories
SURFACES AND SYSTEMS TRACTS:
TRANSGRESSIVE
• Transgression
• Ravinement surface
• Maximum flooding surface
THE CONTINENTAL PERSPECTIVE
• Exercise 2.4 (Brent Group case study)
DAY 3
ACCOMMODATION-SUPPLY CYCLES
• 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
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
WHEN:
Università di Padova, Via G. Gradenigo 6. Padova
8-10 October 2012
REGISTRATION: send an e-mail to [email protected]