نتایج جستجو برای: geological boundary

تعداد نتایج: 183188  

2007
Hongbing Sun Manfred Koch Andrew Markoe

This paper analyzes and summarizes the numerous types of variations of groundwater pressures (heads), mid-oceanic ridge borehole temperatures and microseismicity in response to tidal forcing in coastal aquifers and deep sea sediments. Tidally related data obtained from various sources were filtered and processed by means of classical harmonic analysis to extract the amplitudes of pressure and t...

2014
Gang Mei

Several key techniques in 3D geological modeling including planar mesh generation, spatial interpolation, and surface intersection are summarized in this paper. Note that these techniques are generic and widely used in various applications but play a key role in 3D geological modeling. There are two essential procedures in 3D geological modeling: the first is the simulation of geological interf...

2016
Lv Xikui Li Yongfa

The display of three dimensional geological body can visually describe the complex subsurface geological structure, effectively improve the engineer's space imagination and intuitively understand the geological spatial relationship. Through analysis of commonly used three dimensional geological data model and considered the impact of faults. The paper establishes a generalized triangular prism ...

2009
Catherine Truffert

According to EuroGeoSurveys, the European Geological Surveys association, “Geological spatial data and models describe the solid Earth’s surface and subsurface on-shore and off-shore, its nature, structure, properties, dynamics and evolution over time; including its related (geo)resources and (geo) hazards”. This illustrates a modern vision of the core mission that National Geological Surveys h...

Journal: :Zapiski Gornogo instituta 2022

The results of compiling the sets State Geological Map at a scale 1:1,000,000 for Arctic continental shelf Russia are analyzed. Results summed up, and main problems geological mapping outlined. geophysical studies Ocean great importance deciphering evolution. is widest in world, while spreading ocean basin one narrowest characterized by anomalous structural features. include identification sedi...

2013
AIVARS SPALVINS JANIS SLANGENS INTA LACE OLGERTS ALEKSANS KASPARS KRAUKLIS

The countries of the world and of the European Union are developing hydrogeological models (HM) where, by means of computer modelling, the information necessary for the groundwater management is obtained. In 1996, Riga Technical University (RTU), upon assignment of the former State Geological Survey, established regional HM REMO for the central part of Latvia. REMO does not match demands of a m...

Journal: :J. Geographic Information System 2009
Ying Huang Mingqiang Guo Xiangang Luo Zhong Xie

The current metadata modeling techniques can not meet the needs of knowledge conception expression, knowledge organization, and metadata semantic consistency in geological domain. This paper introduces ontology and integrates this theory to geological domain metadata modeling. It adopts the first order logic equivalent algorithm and defines the metadata extended model as a quaternion group whic...

2017
H. Tanaka Y. Shiomi

To understand the fault zone fluid flow‐like structure, namely the ductile deformation structure, often observed in the geological field (e.g., Ramsay and Huber The techniques of modern structure geology, vol. 1: strain analysis, Aca‐ demia Press, London, 1983; Hobbs and Ord Structure geology: the mechanics of deforming metamorphic rocks, Vol. I: principles, Elsevier, Amsterdam, 2015), we appli...

2013
Quanbing Rong Hongjun Zhang Fengshan Wang

Measuring the geological disaster-risked situation, is a typical non-deterministic decision-making issue in disaster prevention and emergency response science for military engineering. Based on the given geological disaster risk analysis mechanism, geological disaster risk monitoring matrix was established, and risk characters’ value was obtained by mining the hidden information in the monitori...

2003
Sylvain Brandel Matthieu Haefele Dominique Bechmann

This paper presents a geological application in a virtual immersive environment : the Immersive Geological Pilot. This application allows a user to interactively build a structured geological model and its associated geological evolution scheme (a directed acyclic graph) by setting the various geological surfaces of the model one after the other in reverse chronological order, beginning with th...

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