Geological disaster causes loss of lives and damage to man-made and natural stuctures. In this paper, a coupling method with optimal combination weighing law and extension model was established. Based on dynamic impact factors such as forest coverage, annual average rainfall, topography and gemorphogy, geologic structure, and type of rock and soil, the amount of disaster points and human engine...

Regional scale geological maps are still not available for many remote parts of the Earth. All geological maps contain two fundamental pieces of information: a) lithological data: a list of the various rock types present, and b) structural data: geometrical information that describes the spatial relationships of the various rock units. For the purposes of regional scale geological mapping the s...

The gravity field and derivatives generated with the high resolution EIGEN-6C2 gravity model which includes satellite gravity data of GOCE (Gravity field and steady-state Ocean Circulation Explorer) has been utilized for geological appraisal of the Singhbhum-Orissa Craton, India. The GOCE only field gravity data and in situ gravity data of the same area have been utilized for comparative assess...

In the last decade, Ground-Based Synthetic Aperture Radar (GB-SAR) systems have gained an increasing interest. Many different applications take advantages of the flexibility and capability of such systems to measure deformations with submillimeter precision, map terrains and monitor landslides and other geological phenomena. In literature different focusing algorithms have been proposed. The ai...

The Bonaparte project is a new multi-year bedrock mapping program of the British Columbia Geological Survey (BCGS) concentrating on Mesozoic arc volcanic and plutonic rocks of the Quesnel Terrane in the northeastern part of the Bonaparte Lake (92P) map sheet (Figure 1). The area encompasses a northwest-trending belt of high mineral potential that includes a number of interesting mineral occurre...

eshtehard aquifers are shoor river's catchment basin and water potential in different areas. eshtehard aquifers, because of the diversity of geological formations and structures have different quality and quantity. this paper aims, to determine the relationship between quantitative and qualitative characteristics of water resources with the lithology and structural geological features of t...

For database limitations, see following page ii DATABASE LIMITATIONS Content This database is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. This database, identified ...

The aim of this study is determination and separation of alteration zones using Concentration-Area (C-A) fractal model based on remote sensing data which has been extracted from Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) images. The studied area is on the SW part of Saveh, 1:250,000 geological map, which is located in Urumieh-Dokhtar magmatic belt, Central Iran. The ...

Geology is a complex, semantically rich domain involving the interpretation of geological maps as external visualizations. Geological maps are complex in particular because 3dimensional features must be inferred from 2-dimensional representations depicted by differing line types and weights. Modeling building, as an internal mental activity, is also required in order to achieve deep understandi...

This article summarizes new findings of the East Kootenay project after completion of 2 months of fieldwork in the Yahk map area (82F/I) in 1994. The project was initiated in 1993 to provide 130 000-scale geological maps with improved stratigraphic correlations, and to stimulate base metal exploration southwest of the Sullivan mine. Work in 1994 focused on fill-in traverses and measured sect...