International Journal of Geosciences

Volume 6, Issue 2 (February 2015)

ISSN Print: 2156-8359   ISSN Online: 2156-8367

Google-based Impact Factor: 1.46  Citations  h5-index & Ranking

3D Geology Modeling from 2D Prospecting Line Profile Map

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DOI: 10.4236/ijg.2015.62012    3,425 Downloads   4,494 Views  Citations

ABSTRACT

Using prospecting line profile map in combination with drilling and other information for 3D reconstruction of geological model is an important method of 3D geological modeling. This paper discusses the theory and implementation method of 2D prospecting line map into 3D prospecting line map and then into 3D model. The authors propose that it needs twice upgrading dimension to reconstruction 3D geology model from prospecting line profile map. The first upgrading dimension is to convert profile from 2D into 3D profile, i.e. the 2D points in the 2D profile map upgrading dimensional transformation to 3D points in a 3D profile. The second upgrading dimension is that transform 0D point 1D curve and 2D polygon feature into 1D curve, 2D surface and 3D solid feature. The paper reexamines contents and forms in prospecting line map from the two different viewpoints of geology and geographic information science. The process of 3D geology modeling from 2D prospecting map is summarized as follows. Firstly, profile is divided into several sections by beginning, end and drill point of the prospecting line. Next, a 3D folded upright profile frame is built by 2D folded prospecting line on the plan map. Then, 2D points of features on 2D profile are converted into 3D points on 3D profile section by section. And then, adding switch control points for the long line crossover two segments. Lastly, 1D curve features are upgraded to 2D surface.

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Li, Q. , Cui, Y. , Chen, C. , Dong, Q. and Ma, Z. (2015) 3D Geology Modeling from 2D Prospecting Line Profile Map. International Journal of Geosciences, 6, 180-189. doi: 10.4236/ijg.2015.62012.

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