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Universidade Fernando Pessoa

Porto, Portugal

This is the Home Page of a "snap shot " of the short-course on "Seismic-Sequential Stratigraphy" available at Fernando Pessoa University (Porto, Portugal). It is partially based on the lessons that P. Vail gave at Rice University (Houston, Tx, USA) and at Total to Total's Explorationists.

If you click on the hyperlinks (underlined text and bots), you can navigate and you will find some comments and majority of the plates shown during the course.

In this tentative interpretation, the sedimentary packages correspond to stratigraphic cycles, i.e., sedimentary intervals deposited during eustatic cycles. In the upper part, where the rate of deposition was quite high, stratigraphic sequence-cycles (associated with 3th order eustatic cycles) can be recognized. On the contrary, in the lower part, and particularly during Mesozoic time, the seismic intervals are too condensed. As a result, only continental encroachment subcycles, associated with 2nd order eustatic cycles, can be interpreted. Actually, as we will see later, the large majority of the seismic line cannot be interpreted in terms of sequence-cycles. So, in these notes, the title Seismic-Sequential Stratigraphy seems preferable rather than Seismic-Sequence Stratigraphy. The proposed fault planes correspond to seismic surfaces. On a seismic line rarely a fault plane is shown by a reflector but when it is injected by salt, volcanics, or when it correspond to an interface between sediments and a basement.

click on the underlined text

Seismic - Sequential Stratigraphy

Carlos Cramez

with contibutions from

Peter Vail & Shenghyu Wu

In addition to these notes on "Seismic-Sequential Stratigraphy " the following courses are or will be available soon:

- Glossary of Salt Tectonics
- Basic Principles in Tectonics
- Bassins Sédimentaires et Systèmes Pétroliers
- Salt Tectonics
- Systemic Stratigraphy Seminar
- Turbiditic Systems
- Hydrodynamism
- Foredeep & Fold Belts
- Volume Problems
- Offshores Profonds
- Glossary in Sequential Stratigraphy
- Probabilistic Reserves Assessment
- Geological Setting & Seismic Interpretation.

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