Chapter 4
Vombat: An Open Source Tool for Creating Stratigraphic Logs from Virtual Outcrops
L. Penasa,
M. Franceschi,
N. Preto,
L. Penasa
Center of Studies and Activities for Space, CISAS, “G. Colombo”, University of Padova, Via Venezia 15, 35131 Padova, Italy
Dipartimento di Geoscienze, Via G. Gradenigo, 6, 35131 Padova, Italy
Search for more papers by this authorM. Franceschi
Dipartimento di Geoscienze, Via G. Gradenigo, 6, 35131 Padova, Italy
Search for more papers by this authorN. Preto
Dipartimento di Geoscienze, Via G. Gradenigo, 6, 35131 Padova, Italy
Search for more papers by this authorL. Penasa,
M. Franceschi,
N. Preto,
L. Penasa
Center of Studies and Activities for Space, CISAS, “G. Colombo”, University of Padova, Via Venezia 15, 35131 Padova, Italy
Dipartimento di Geoscienze, Via G. Gradenigo, 6, 35131 Padova, Italy
Search for more papers by this authorM. Franceschi
Dipartimento di Geoscienze, Via G. Gradenigo, 6, 35131 Padova, Italy
Search for more papers by this authorN. Preto
Dipartimento di Geoscienze, Via G. Gradenigo, 6, 35131 Padova, Italy
Search for more papers by this authorBook Editor(s):Andrea Bistacchi,
Matteo Massironi,
Sophie Viseur,
Andrea Bistacchi
Department of Environmental and Earth Sciences, University of Milano-Bicocca, Milan, Italy
Search for more papers by this authorMatteo Massironi
Department of Geosciences, University of Padua, Padua, Italy
Search for more papers by this authorFirst published: 01 April 2022
Summary
An open source tool, Vombat , is presented that is designed to operate on Virtual Outcrop Models of sedimentary rocks, with the specific aim of assisting the stratigraphic analysis and interpretation. Vombat makes it possible to estimate the average attitude of the bedding and to create one or more attitude-aligned stratigraphic reference frames. This allows Vombat to extract continuous stratigraphic logs of any property associated with the point clouds (e.g. the lidar intensity or RGB color). Stratigraphic logs produced by Vombat can be compared and correlated to typical outcrop logs and petrophysical logs obtained from boreholes (e.g. gamma ray logs) and can provide information about the lithological variations in a stratigraphic succession. Furthermore, Vombat stratigraphic reference frames can be used to associate a stratigraphic position (a depth in the stratigraphic column) to any observation made on the outcrop, allowing visualization in 3D (on the virtual outcrop model) and 1D (on a stratigraphic column) for any collected data. All the geological objects created in the virtual environment can then be saved. The tool has been developed to be user-friendly and is constituted by a dynamically loaded plugin for the open source software CloudCompare.
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