Creation of 3D model of the Turkа quarry using terrestrial laser scanning
- 1Lviv Polytechnic National University, Institute of geogesy, Lviv (mariia.a.oliinyk@lpnu.ua)
- 2Consulting Geologist, Lviv, Ukraine (andrewbubniak@yahoo.com)
- 3Ivan Franko National University of Lviv Department of Geology of Mineral Resources and Geophysics (yuvik@ukr.net)
Structural studies foresee a detailed three-dimensional model. In this work we present the results of constructing a virtual outcrop at the quarry base in the city of Turka. Such objects are especially valuable for structural geology, sedimentology, mining, etc.
From a geological point of view, it is located in the Outer Ukrainian Carpathians, tectonically it belongs to the Krosno nappe. Here, the rocks are mainly represented with sandstones, siltstones and argillites.
Workflow. The study predicted:
- Reconnaissance of the object (detailed overview of the object of research, determination of future positions of control and reference points, and standing stations);
- Establishing and determining the coordinates of reference points (placement of six black and white marks);
- Determining the coordinates of control points (fixation on the outcrop body using the electronic total station Leica TCR 405);
- A terrestrial laser scanning process (3/4 scanning points are located approximately on the same line with a step of 25 and 15 meters, the fourth station is located at the top of the right slope of the quarry, the elevation is 29 m; scanning was performed with a Leica ScanStation C10 scanner);
- Photographing the object (in order to improve the quality of the future mesh model, some details and textures. 344 pictures were taken with a Canon Mark 3 5D digital camera);
- Creating a point cloud based on laser scanning data (Processing was performed in the Leica Cyclone Register 360 program. Five reference points were used to orient the cloud of points in the coordinate system);
- Creating a mash model based on point clouds and digital images (This step was done in the Reality Capture program. The accuracy of the mash model was assessed by comparing the coordinates of control points obtained from the mash model and surveying with TPS; the absolute spatial difference does not exceed five centimeters).
The geological field camp was financed by American Association of Petroleum Geologists (AAPG) for the first author.
How to cite: Oliinyk, M., Bubniak, I., Bubniak, A., Shylo, Y., Bihun, M., and Vikhot, Y.: Creation of 3D model of the Turkа quarry using terrestrial laser scanning, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-364, https://doi.org/10.5194/egusphere-egu23-364, 2023.
