Specialization courses

Curs d’especialització intensiu en Micromorfologia de sòls

Curs d’especialització intensiu en Micromorfologia de sòls


Postponed to 9-20th May 2022

Micromorphology is a study technique in earth sciences that describes, interprets, and measures the components, features, and fabrics of soils, regolith materials, and cultural components at the microscopic and submicroscopic levels. Undisturbed samples are required to see the arrangement and relationship of individual soil particles or components as they occur in nature, therefore thin sections, observed through polarising microscopes are normally used.
This course will comprise lectures, exercices with thin sections provided by the lecturers and also with material brought by the participants and visits to a thin section lab. Both analogic and digital polarising microscopes will be available, with a maximum of 2 participants per microscope, as well as facilities to work with them during extra time and to discuss the participants own thin sections with lecturers and colleagues. A certificate issued by the University of Lleida, under the auspices of the International Soil Science Society and the Institut Cartogràfic i Geològic de Catalunya will be handled to the participants who attend a minimum hours of lectures.
The contents of the course are:
- Principles of mineralogy and petrography, optical mineralogy
- Micromorphology sampling and making thin sections
- Guidelines for the description of thin sections of soils and regoliths, plant components.
- Micromorphology of soil materials and identification of soil formation processes: soils with carbonates and gypsum, volcanic soils, clay accumulation, hydromorphic soils, tropical and highly weathered soils, glacial and periglacial processes, organic materials and faunal activity.
- Micromorphometry and image processing.
- Soil genesis and classification
- Geomorphology
- Paleosols
- Archaeology
An optional weekend excursion around the Tremp basin, to discuss on geology, Mediterranean soilscapes and soil genesis is also offered (information and costs will be informed upon arrival).
The lecturers are experienced professors and researchers from the Universities of Lleida, Ghent, Barcelona, Stellenbosch, Colegio de Potsgraduados (Mexico) and La Laguna.


  • Introduction, sampling techniques, thin section preparation
  • Optical mineralogy, mineral identification in thin sections
  • Thin section description: microstructure, components, pedofeatures
  • Systematics of description of thin sections
  • Argillic, spodic, oxic and vertic materials. Freeze-thaw and hydromorphic features
  • Applications in geomorphology and paleopedology, faunal excrements
  • Plant components
  • Mediterranean and arid soils: carbonates and gypsum
  • Archaeological applications
  • Introduction to micromorphometry
  • Humus layers and organic material

Monday 9-may 10:00-12:00 Introduction, sampling, Thin section preparation 12:30-13:00 field demonstration 15:00-17:00 Identification of plant components in thin sections 17:30 Bus from Lleida to Tremp Tuesday 10-may 9:00-11:00 / 11:30-13:30 Optical mineralogy 15:00-17:00 Identification of minerals in thin sections Wednesday 11-may 9:00-11:00 Thin section description: 3D/2D, fabric concepts 11:30-13:30 Microstructure 15:30-17:30 Mineral and organic components Thursday 12-may 9:00-11:00 Microstructure 11:30-13:30 Mineral weathering 15:00-17:00 Groundmass and b-fabric 17:00-18:00 Visit to collection of soil monoliths ICGC Friday 13 may 9:00-11:00 / 11:30-13:30 Pedofeatures 15:00-17:00 Exercices and questions about the Guidelines Monday 16-may 9:00-11:00 Systematics of description of thin sections 11:30-13:30 Argillic, Spodic, oxic and vertic materials 15:00-16:30 Freeze / thaw and hydromorphic features 16:30-18:00 Personal work (PW) Tuesday 17-may 9:00-11:00 Mediterranean and arid soils: carbonates 11:30-13:30 PW 15:00-16:30 Mediterranean and arid soils: gypsum 16:30-18:00 PW Wednesday 18-may 9:00-11:00 Applications in geomorphology and paleopedology 11:30-12:30 PW 12:30-13:30 Humus layers and organic material 15:00-16:00 Faunal excrements 16:00-18:00 PW Thursday 19-may 9:00-11:00 Site formation processes 11:30-13:30 PW 15:00-16:30 Anthropogenic features 16:30-18:00 PW Friday 20-may 9:00-11:00 Micromorphometry and image analysis 11:30-13:30 PW, evaluation

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18/10/2021 until 04/05/2022


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