نتایج جستجو برای: geological method

تعداد نتایج: 1651162  

1997
Bruce R. Johnson Boyan Brodaric Gary L. Raines Gary Raines

AASG/USGS Geologic Map Data Model Committee* Gary Raines, Chairman, US Geological Survey, [email protected] Boyan Brodaric, Geological Survey of Canada, [email protected] Jim Cobb, Kentucky Geological Survey, [email protected] Ralph Haugerud, US Geological Survey, [email protected] Greg Hermann, New Jersey Geological Survey, [email protected] Bruce Johnson,...

2004
WOOIL M. MOON

Several methods are available for integrating geophysical, geological, and remote sensing data sets and also for integrating them with additional information such as newly observed geophysical and geological data. Several published reports discuss successful application of different types of spatial information integration techniques including the geographical information system (GIs). There ha...

Introduction: Many natural phenomena have many variables that make it difficult to find relationships between them using common mathematical methods. This problem, along with the impossibility of measuring all elements of nature, has led to a major evolution in the way of understanding and explaining phenomena. In this way, one can use the fractal geometry with the theory that many natural phen...

2013
Y. Liu

Geo-anomalies with complex structures in the earth’s crust may be defined as preferable hydrothermal oreforming targets. The separation and explanation of anomaly from geological background have a profound influence on the analysis of geological evolution and the ore-forming process. Usually one of the key steps to identify favorable exploration targets is to determine the threshold to separate...

Ground Penetrating Radar (GPR) is an effective and practical geophysical imaging tool, with a wide set of applications in geological mapping of subsurface information. This research study aims at determination of the geophysical parameter differences in the subsurface geological structures and construction of a 3D fracture model. GPR and resistivity methods were applied to detect the unstable t...

2005
RACHEL WOOD ANDREW CURTIS

Geological information can be used to solve many practical and theoretical problems, both within and outside of the discipline of geology. These include analysis of ground stability, predicting sub-surface water or hydrocarbon reserves, and assessment of risk due to natural hazards. In many cases, geological information is provided as an a priori component of the solution (that is, information ...

2015
Liang Wu Lei Xue Chaoling Li Xia Lv Zhanlong Chen Mingqiang Guo Zhong Xie Georgios V. Gkoutos

The use of digital information in geological fields is becoming very important. Thus, informatization in geological surveys should not stagnate as a result of the level of data accumulation. The integration and sharing of distributed, multi-source, heterogeneous geological information is an open problem in geological domains. Applications and services use geological spatial data with many featu...

Journal: :Ground water 2010
Ming Ye Karl F Pohlmann Jenny B Chapman Greg M Pohll Donald M Reeves

This study evaluates alternative groundwater models with different recharge and geologic components at the northern Yucca Flat area of the Death Valley Regional Flow System (DVRFS), USA. Recharge over the DVRFS has been estimated using five methods, and five geological interpretations are available at the northern Yucca Flat area. Combining the recharge and geological components together with a...

2010
Lili Tang Deyong Hu Xiaojuan Li Jian Lian

The 0908 typhoon “Morakot” heavily attacked Taiwan. It brought strong rainfall which not only caused water level rise in several reservoirs and rivers, but also triggered a large number of landslides, debris flow, collapse and other geological disasters. All of these changes resulted in flooding, and for the worst, several villages were buried. In this paper, using NDVI(Normal Differential Vege...

Journal: :CoRR 2018
Mark Sh. Levin

The paper describes combinatorial framework for planning of geological exploration for oil-gas fields. The suggested scheme of the geological exploration involves the following stages: (1) building of special 4-layer tree-like model (layer of geological exploration): productive layer, group of productive layers, oil-gas field, oil-gas region (or group of the fields); (2) generations of local de...

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