![]() The remote-sensing data were processed using Earth Resource (ER) Mapper Ver. A magnetic survey is a powerful method to study the location of faults and other geological structures (dykes, intrusions) and is routinely applied in mining exploration surveys. Geophysical data consist of aeromagnetic data obtained from the US Geological Survey (USGS) and processed using Geosoft Oasis Montaj Ver. The results from remote-sensing and geophysical interpretation will support future mining exploration and development studies. Integrating remote-sensing and geophysical data has the potential to define the quantitative details of hitherto unknown areas and reduce the ambiguity of geological interpretation. Map showing the mineral and structural information of the study area. This chapter shows only a small sample of what can be done with remote sensing, and the capabilities of these methods will only increase with time. Spectral signatures of various plants and common rocks and minerals are well established, allowing remote reconnaissance to identify areas favorable for energy and mineral exploration or expand such areas through sensing techniques. Today’s wide assortment of sensors allows interpreters to overlay, combine, or even subtract sensors in the search of meaningful maps. These include large existing databases such as Landsat and Satellite Pour l’Observation de la Terre (SPOT21) the ability to get regional views of large areas ease of combining information from multiple sensors no difficulty or danger in covering remote areas availability of sophisticated computer analysis programs a wide selection of energy bands (e.g., Infrared, ultraviolet, etc.) and of vital importance, low cost, and high speed. There are a number of advantages in using remote sensing. Sensor technology has come a long way from cameras and film, and we can now detect the entire useful electromagnetic spectrum, as well as gravity and magnetics themselves. Sensors have ridden over time on balloons, to kites, to various aircraft, rockets, and finally on satellites. Three case studies are discussed in this chapter from three countries-Afghanistan, United Arab Emirates, and Algeria-to show the effectiveness of remote sensing in mapping and detecting geo-structural, geomorphological, and geothermal characteristics of ground surfaces.Īirborne remote sensing could be said to have started in 1858 when French balloonist Gaspard-Felix Tournachon took a photo of Paris from above. In this chapter, geophysical remotely sensed data (airborne geophysics) are integrated with other sources of remotely sensed data to analyze three separate areas, one each for geological structure, lineament presence and orientation, and geothermal potential. ![]() ![]() ![]() Advances in remote-sensing data analysis techniques have improved the capacity to map the geological structures and regional characteristics and can serve in mineral exploration in complex and poorly understood regions. The recent advances in remote-sensing imaging acquisition and availability of images can help geoscientists to explore and prepare maps quickly and evaluate the geo-potential of any specific area on the globe. Remote sensing is becoming an important and useful tool in mapping large, remote areas and has many applications in geosciences such as geologic and geo-structural mapping, mineral and water exploration, hydrocarbon exploration, natural hazards analysis, and geomorphology. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |