Petrology and Diagenesis Analysis

Recommended Prerequisites

Mineralogy, Sedimentary Petrology and General Geology.

Teaching Methods

Theoretical Classes:oral exposure of contents through multimedia resources;

Laboratory Practices: Individual work or in groups of 2 students according with laboratory techniques evidenced in syllabus above described. 

Learning Outcomes

At the end of this course students are expected to:

1. Characterize and classify, at different scales of analyze (macroscopically and microscopically), any sedimentary rock, its mineralogy and facies, and integrate them in a genetic and depositional system. 2. Have acquired great part of concepts related with diagenesis and porosity, and recognize the diagenetic modifications of siliciclastic and carbonate rocks. 3. Understand the rock properties and characteristics in the evaluation of siliciclastic and carbonate potential reservoirs.

Work Placement(s)

No

Syllabus

Theoretical part:

1. techniques used in modern sedimentary petrology. 2. Composition of sedimentary materials and textures. Paleoenvironmental significance of minerals. Main classifications. 3. Stable isotopes of carbon and oxygen: isotopic fractionation, paleoenvironmental control and diagenetic, paleo-thermometers. 4. Diagenesis: Controlling factors and chemical and physical processes. Diagenetic environments. Cementation. Indicators of diagenetic transformations. 5. Porosity and permeability: primary and secondary porosity. Typology of pores and genetic implications.

Laboratory and field practice:

1. Macroscopy of samples from different depositional and diagenetic environments. 2. Microscopy. Procedures for quantification of constituents. Rock classification and interpretation of tectonic context and diagenetic evolution. Classification and quantification of porosity. 3. Analysis of heavy and clay fractions.

Head Lecturer(s)

Luís Vítor da Fonseca Pinto Duarte

Assessment Methods

Assessment
Laboratory work or Field work: 50.0%
Exam: 50.0%

Bibliography

Adams, A. E., MacKenzie, W. S. & Guilford, C. (1984). Atlas of sedimentary rocks under microscope. Longman Scientific & Technical, Harlow, 104 p.

Berg, R.R. (1986). Reservoir sandstones. Prentice-Hall, Inc., 481p.

Chamley, H. (1989). Clay Mineralogy. Berlin: Springer, 623 p.

Mange, M. A., Maurer, H.F.W. (1992). Heavy minerals in colour. Chapman and Hall, London, 147pp.

Marshall, J.D. (1987). Diagenesis of sedimentary sequences. Geol. Soc. Special Publication Nº36, Blackwell Scientific Publs., 360p.

Scholle, P.A. & Ulmer-Scholle, D.S. (2003). A color guide to the petrography of carbonate rocks. AAPG Memoir 77.

Tucker, M.E. (2001). Sedimentary Petrology. Blackwell Scientific (Third Edition), 262p.

Tucker, M. E. & Wright, V. P. (1990). Carbonate Sedimentology. Blackwell Science Ltd, 482p.