Field-proven

structural geology

consulting

Our services

We deliver comprehensive structural geological mapping using field observations, underground data, boreholes, thin sections, and digital datasets. Each project is tailored to site conditions and client goals, producing high-quality data for reliable structural analysis and modelling.

We begin with detailed geometric analysis to assess data quality and build clear maps, sections, and stereonets that support decisions and reduce risk. This understanding informs kinematic and dynamic studies, strengthens geological models, and reduces uncertainty in sparse datasets.

We create robust 3D geological models using integrated datasets and flexible modelling methods. Capturing both brittle and ductile deformation, our models support mining, nuclear waste management, groundwater and soil studies, and major infrastructure planning.

We provide flexible structural geology training at basic and advanced levels, combining practical, student-centred teaching with solid theory. Courses can be tailored to specific needs and delivered online, in person, or hybrid.

Our products

Core orientation device

We developed a new core orientation device using industrial-grade aluminium profile and stainless steel bolts. The result is a non-magnetic and exceptionally sturdy, durable, and portable core orientation device, which can hold any core sizes from BQ to PQ.

SGEONet

Developed in-house by the Structural Geology Company, SGEONet is a stereonet plotting tool designed to support structural geologists during logging and mapping. Available as a free download for Windows and Mac, SGEONet allows fast and efficient plotting of structural measurements directly from field data.

News

Field course
Field course

Field course

1st circular – Field and drill core structural geology training…
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FEM 2025
FEM 2025

FEM 2025

SGEO’s staff is attending the 14th Fennoscandian Exploration and Mining…
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Our team

MSc

Tuomas Kauti

My specialty is to modify and integrate various kinds of geological data into a coherent and ready-to-use datasets. Logically organized and error-free data packages are the key for successful generation of geological 3D-models and map interpretations, and further enable an efficient control and use of new data.

I have worked i.e., on nuclear waste management, geophysical survey projects and I have developed an undergraduate level structural geology web course for the use of Finnish universities. I have worked on structural geology and 3D-modeling for almost 10 years.

Along my work, I’m also a doctoral researcher at University of Turku. My research deals with 3D-modeling of structures formed by ductile and brittle deformation of Archaean bedrock, and how these modelling results can be utilized to resolve the structural evolution of the target. The research focuses on mine environment and it integrates blast hole and diamond drilling data, geophysics, 3D-photogrammetry and field mapping data.

PhD

Jussi Mattila

My primary area of expertise lies in applied and quantitative structural geology, with a specific focus on advanced characterization, analysis, and 3D modeling of brittle structures. Additionally, I excel in integrating descriptive, empirical observations with quantitative structural geological analysis. In the contemporary field of geology, a quantitative approach is essential due to the demands of data end-users, who often require numerical results from geological analyses. Moreover, it presents an opportunity to enhance our understanding of the formation of geological structures and predict their properties in various environments, thereby reducing uncertainties in geological models.

Over the course of my career, I have applied my expertise to a diverse range of applications, including nuclear waste management, underground infrastructure, and mining projects. With over 20 years of experience from crystalline Precambrian settings, I have acquired comprehensive knowledge and insights in this domain.

Furthermore, I hold the position of Adjunct Professor of Structural Geology at the University of Turku and have conducted biannual master-level courses focusing on engineering geology and stress analysis of brittle structures. As an instructor, I maintain rigorous standards, driven by the intention to impart my students with an in-depth understanding of the processes and theories that underpin the advanced characterization of geological structures.

PhD

Pietari Skyttä

My main expertise lies within the analysis and 3D modeling of structures of multiply deformed crystalline bedrock, in which I have more than 20 years of experience, primarily in the Fennoscandian region. Within my structural analysis I have a dynamic approach which covers both ductile (folds, shear zones) and brittle (faults, fractures) structures, their mutual relationships and development through time. I am capable of conducting extensive regional mapping campaigns and structural synthesis, which require linkage of structural analysis with associated disciplines such as geochronology and interpretation of geophysical datasets. In addition to basic research, I have experience in the application of structural geology within ore exploration and nuclear waste management. I have an active role within the geoscientific community of Finland, and wide networks within the academia and industry, particularly within the Nordic countries.

I have 20 years of experience in undergraduate teaching and supervision in bedrock geology, during which I have gained good skills in lecturing, field teaching, lab exercises – including preparation of the teaching material, curriculum planning and contact teaching. I am currently holding a tenure professor position at the University of Turku. I am an inspiring teacher and supervisor who dares to challenge his students so that they gain insights and professional self-confidence in interpreting even challenging issues and communicating further the conducted interpretations.

Questions?