Abstract So far, large stochastic models require considerable amounts of time to be created. In fact, to simulate systems or events, there is a constant need to perform an analysis of the system and its variables. In this paper we propose a method to automatically generate Stochastic Automata Networks (SAN) models for geological events. Based on user-defined input data, the method creates a mod...

This article describes a parallel implementation of a ray tracing algorithm in a heterogeneous anisotropic geological medium. The shortest path method, which was used for calculations, can give ray path and travel time of seismic wave propagation even for a random and discontinuous velocity field. The high precision required in such calculations was obtained by employing a dense computational g...

The problem of estimating the location of facies boundaries is difficult in history matching, partly because of the geological complexity. The truncated plurigaussian method for modeling geologic facies is useful in this aspect not only for the wide variety of textures and shapes that can be generated, but also because of the internal consistency of the stochastic model. This method has not bee...

The Neoproterozoic era was arguably the most revolutionary in Earth history. Extending from 1000 to 541 million years ago, it stands at the intersection of the two great tracts of evolutionary time: on the one side, some three billion years of pervasively microbial 'Precambrian' life, and on the other the modern 'Phanerozoic' biosphere with its extraordinary diversity of large multicellular org...

Magnetic susceptibility has been extensively used to determine the magnetic properties of rocks for different applications, such as hydrocarbon or mineral explorations. This magnetic quantity can be directly measured in an accurate but time-consuming operation, or it can be mathematically approximated using a reliable procedure to achieve a desired accuracy. The Poisson theory is one of the mos...

Elena Nilsen, U.S. Geological Survey, Geologic Division Robert Rosenbauer, U.S. Geological Survey, Geologic Division Edward Furlong, U.S. Geological Survey, Methods Research and Development Program Mark Burkhardt, U.S. Geological Survey, Methods Research and Development Program Stephen Werner, U.S. Geological Survey, Methods Research and Development Program Lisa Greaser, U.S. Geological Survey,...

With the three-dimensional (3D) geological information system development, 3D cross-sections (GCs) have become primary data for work and scientific research. Throughout past surveys or research works, a lot of two-dimensional (2D) cross-section maps been accumulated, which struggle to meet application needs visual expression, analysis, many other aspects. Therefore, this paper proposes an autom...

During numerical simulation of geotechnical engineering, due to the complex engineering geological condition, the simplified geologic model is usually adopted. However, the accuracy and reliability of calculating result are directly influenced by characteristic of model. The 3D geologic model can better reflect the actual geological condition. The paper presents a new and practical modeling met...