Геоэкология. Инженерная геология. Гидрогеология. ГеокриологияГеоэкология. Инженерная геология. Гидрогеология. Геокриология0869-7809The Russian Academy of Sciences1181610.31857/S0869-78092019170-80Research ArticleThe possibilities of the geological border oriented graph at formal description of 3-dimensional large-scalegeological modelMironovO. K.e.karfidova@yandex.ruKarfidovaE. A.e.karfidova@yandex.ruSvalovaV. B.e.karfidova@yandex.ruSergeev Institute of Environmental Geoscience, Russian Academy of Sciences17042019170801704201917042019Copyright © 2019, Russian Academy of Sciences2019<p>The article deals with the present state of the formalized description of a 3-dimensional geological model with the consideration of the problems arising from the increase in scale and the transition from the geological bodies distinguished by stratigraphic principle to those identified by lithology-stratigraphic and engineering-geological divisions. An approach to solving these problems is proposed. It is shown that the problem of correctly determining the sequence of occurrence of lithological-stratigraphic subdivisions can be solved as a problem of topological sorting of vertices of an oriented graph. For the first time, the requirements for non-local alignment of geological sections are set.</p>3-dimensional geological modellinggeological profileswell databaseoriented graphtopological selected orderтрехмерное геологическое моделированиегеологические разрезыбаза данных скважинориентированный графтопологическая сортировка[Batrak, G.I., Kostikova, I.A., Pozdnyakova, I.A., Karfidova, E.A., Toms, L.S. Difficulties and prospects of hydrogeological substantiation of drainage in tunnels of deep laying (by the example of the Alabian-Baltic tunnel in Moscow). Sergeevskie chteniya, vyp. 18 [Proc. 18th Conference in commemoration of academician E.M. Sergeev]. Moscow, RUDN Publ., 2016, pp. 454-459 (in Russian)][Dem’yanov, V.V., Savel’eva, E.A. Geostatistika. Teoriya i praktika [Geostatistics. Theory and practice], Moscow, Nauka Publ., 2010, 328 pp. (in Russian)][Kormen, T., Leisserson, Ch., Rivest, R., Stein, K. Topological sorting. Algorithms: construction and analysis, Krasikova I.V., Ed., Moscow, Williams, 2nd edition, 2005, pp. 632-635. (in Russian)][Mironov, O.K. Geoinformation technologies for compiling large-scale geological maps of the territory of Moscow. Geoekologiya, 2011, no. 3, pp. 200-216. (in Russian)][Mironov, O.K. Application of 3-dimensional modeling for hydrogeological problems. Sergeevskie chteniya, vyp. 18 [Proc. 18th Conference in commemoration of academician E.M. Sergeev]. Moscow, RUDN Publ., 2016, pp. 657-660 (in Russian)][Mironov, O.K. A three-dimensional model of Pre-Quaternary sediments on the territory of Moscow. Sergeevskie chteniya, vyp. 17 [Proc. 17th Conference in commemoration of academician E.M. Sergeev]. Moscow, RUDN Publ., 2015, pp. 51-56. (in Russian)][Mironov, O.K., Viktorov. A.A., Fesel, K.I. On the problems of maintaining the databases of stock information. Geoekologiya, 2011, no. 5, pp. 455-464. (in Russian)][Mironov, O.K., Pikulik, E.A., Fesel, K.I. About the concept of a three-dimensional geological map. Geodeziya i kartografiya, 2011, no. 6, pp. 36-41. (in Russian)][Pozdnyakova, I.A., Galitskaya, I.V., Mironov, O.K., Kostikova, I.A., Dorozhko, A.L, Batrak, G.I., Matveeva, LA., Fesel, K.I. Identification of hydrogeological windows on the basis of large-scale mapping of the geological structure and hydrogeological conditions of the Moscow territory. Geoekologiya, 2015, no. 4, pp. 352-364. (in Russian)][Skvortsov, A.V. Triangulyatsiya Delone i ee promeneniya [Delaunay triangulation and its applications]. Tomsk. Tomsk Univ. Publ., 2002. 128 pp. (in Russian)][Mallet, J-L. Discrete Smooth Interpolation. ACM Transactions on Graphics, 1989, vol. 8, no. 2, pp. 121-144.][Mathers, S., Kessler, H., Sobisch, H.-G. 3D geological modeling at the British Geological Survey using the GS13D software and methodology (extended abstracts). EUREGEO 2009: European congress on Regional Geoscientific Cartography and Information Systems, Munich, Germany, 9-12 June 2009. Augsburg, Bayerisches Landesamt fur Umwelt, pp. 82-84.][Turner, A.K, Kessler, H. Challenges with applying geological modelling for infrastructure design. Proc.17th Annual Conference of Mathematical Geosciences (IAMG 2015), Freiberg, Germany, Sept. 5-13, 2015 pp. 49-58][Whitney, H. On singularities of mappings of Euclidean spaces, I. Ann. of Math., 1955, v. 62, pp. 374-410.]