“Sequence stratigraphy: principles and applications”

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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)

ACCOMMODATION-SUPPLY CYCLES

Systems tracts

Ramp systems

Shelf-slope-basin systems

Accommodation-supply cycles

Exercise 2..3 (Sequence correlation)

Sequence hierarchy

BASIC CONCEPTS

Regression, transgression

Retrogradation, progradation

Eustasy, Relative sea-level, accommodation space

Trajectories

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

:

send an e-mail to [email protected]

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