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UC.PT

Department of Earth Sciences

Laboratório de Sedimentologia


Resume

 The Sedimentology Laboratory of the University of Coimbra aims to perform granulometric, compositional and morphoscopic analysis of sedimentary rocks, in the scope of research and teaching activities or provision of services.

This laboratory structure has been operating for several decades at Univ. Coimbra. In 1949, the so-called "Sedimentation Laboratory" was instituted by Prof. Gaspar Soares de Carvalho, including the characterization of sand grains by observation of the binocular loupe, separation of heavy minerals and dimensional analysis of sediments (through a Rot-Tap sieve shaker and a set of Andersen pipettes). Around the year of 1960, already with the designation of Laboratory of Sedimentology, Prof. António Ferreira Soares developed it with equipment and human resources. Since 2003 the Lab. Sedimentology has been coordinated by Prof. Pedro Proença Cunha.

Research activities have been carried out within research units recognized by the Foundation for Science and Technology (FCT), namely: for several decades, at the Center for Geosciences of Univ. Coimbra; Since 2008, most of its researchers have been integrated into IMAR-CMA; And from 2015, at MARE - Marine and Environmental Sciences Center. Laboratory researchers are members of the International Association of Sedimentologists.




Contacts

Emaillabsed@dct.uc.ptTelefone(+351) 239 860 507
Coordenator: Pedro Proença Cunha

Emailpcunha@dct.uc.ptTelefone(+351) 239 860 541



Activities



Support of academic research work.

Space of development of teaching/learning activities within the scope of practical or theoretical-practical works of the undergraduate, master's and doctoral disciplines of Univ. Coimbra.

Space for the development of research activities within the scope of the Master's Degree in Geosciences and the Doctorate in Geology of the UC (elaboration of theses).

Collaboration in activities of dissemination of Geosciences (visits of students and teachers or exhibitors).

Provision of specialized services to the community, namely to companies, other State institutions and external research projects.




Laboratory work capabilities


  • Preparation of samples for analysis;
  • ½ Phi sieve of non-consolidated or easily disaggregated sandy sediments;
  • Laser granulometry (suspension preparation and analysis) of samples <2000μm;
  • Preparation of sedimented thin sections with a fraction <2μm for subsequent RX diffraction;
  • Fraction separation > and <63μm for composition identification by XRD;
  • Determination of % of water in sediment;
  • Grinding of limestone or marlstone (80 or 100 mesh) for chemical analysis;
  • Calcimetric analysis;
  • Separation of heavy minerals and assembly of grain into slides or sample holders;
  • Preparation of samples for heavy mineral separation (attack with 6N of HCl, washing, drying and sieving);
  • Determination of sand composition and morphoscopy by binocular magnifier observation (up to 50x).



Equipment



Beckman-Coulter laser granulometer mod. LS230 (0.04 to 2000 μm) (year 2005), to perform granulometric analysis of sediments with particle size <63μm;

Retch sieve shaker mod. AS200 control G (year 2005), for the analysis of sand sizing (> 63 μm);

Binocular magnifier 50x brand Wild mod. Heerbrugg 84220;

35x binocular magnifier Leica EZ4;

Heareus Megafuge 16 centrifuge, to obtain suspensions with a particle size <2 μm needed to create sedimented thin sections;

Sorval RC-5B refrigerated centrifuge, for the washing sediments (removal of dissolved ions);

kiln up to 100 ° C (brand Heareus), suspension stirrers, scales, etc.




Researchers


Pedro Proença CunhaEmailpcunha@dct.uc.ptTelefone(+351) 239 860 541
Luís V. F. DuarteEmaillduarte@dct.uc.ptTelefone(+351) 239 860 551
Jorge M. L. DinisEmailTelefone(+351)
Pedro M. DinisEmailpdinis@dct.uc.ptTelefone(+351) 239 860 512



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