3d geological modelling and education: teaching geological sections and geological mapping with MVE Move

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Sabrina Fede
8 anni fa
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1 3d geological modelling and education: teaching geological sections and geological mapping with MVE Move Fabrizio Berra, Fabrizio Felletti, Michele Zucali Università degli Studi di Milano, Dip. Scienze della Terra A. Desio, Via Mangiagalli Milano

2 Geology is a 3d science at any scale Requirements: ability to read two-dimension representations (typically geological maps) as symbolic images of the real world Advantages: easier understanding of complex geological objects, deductive capacity, data collection planning

3 Teaching 3d geology Typical subject: geological maps (i.e. geological cross sections) Complexity of 3d visualization of geological objects Importance of training with specific educational tools => No rules valid for any situation, importance of problem solving startegies

4 Starting point Abilities related to: 1) a natural predisposition in the visualization of complex objects that, according to the theory of multiple intelligences, can be defined as spatial intelligence, i.e. the ability to visualize with the mind's eye and 2) a good training able to develop, through specific exercises, 3D visualization

5 Teaching: critical points need to enhance innate 3D visualization abilities Use of tools and specific exercises Physical models Perspective images Visualization of 3d geological objects Construction of 3D geological models Primates are visual animals and we think best in pictorial or geometric terms (S.J. Gould)

6 UNIMI: teaching with 3d modelling software Bachelor students involved in the process of production of 3d models after attending a classical geological mapping course Voluntary basis Simple exercises Step by step process for production of 3d models from geological maps

7 MOVE : MVE Academic Software Initiative Oil industry software with advanced applications Vector and raster data Surface interpolation Retrodeformation (2d and 3d) Additional modules

8 Process Map input Digitalization of contour lines => DTM construction Digitalization of geological boundaries Geological cross sections (digital profile, computer aided hand-drawing) Surface interpolation Model interrogation (new sections, tunnels.)

10 P. Luoni

11 P. Luoni G. Armetti L. Milesi

12 uoni GIT Geology and Information Technology Shift form qualitative/approximate geological reconstruction to geometrically coherent 3d models Quantitative approach to the geological data handling Improvement of the precision of data collection and storage Precision in cartographic representation

13 Feedback strongly positive Students learned the basic use of 3D modeling software Students asked for the application of the method to real geological cases Strong link between geological mapping and 3d geological representations

14 L. Milesi

15 G. Armetti

16 Further steps: GIT Geology and Information Technology From voluntary to compulsory training? Field mapping (field move?) Educational stuff Creation of a portfolio of simple 3d models Creation of a portfolio of real geological situations File access via web?

17 Teaching with 3d software: overall impression 1. Improvement of the 3d visualization capability in students (teaching and learning geological sections is easier ) 2. Frustration due to the failure in the reading of geological maps is reduced 3. Students are more conscious of the importance of precision in data collection and storage 4. Ability to use software packages with application to different field of geology

18 Thanks for your attention and thanks to the students that produced the 3d models!

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