Friday, February 12, 2016

Know Geophysical Closer



Geophysics is ...

Geophysics  is the study of the Earth by the rules of Physics. Geophysics is the Physics of the solid Earth. Geophysics deals with all aspect of the Physics of the Earth, its Atmosphere and space. Geophysics consisted of other sciences such as Physics, Geology and Math

     Geophysic engineering is  a process of exploration of the Earth by the method of Geophysical methods. The exploration process usually uses Physics calculations to be more effective in the exploration process. In outline, the Geophysical methods is divided into active and passive. Active method is depend on artificial source, for examples are seismic, geoelectric, electromacnetic, etc. Passive is depend on natural source. Passive method is often called potential method because passive method has selfpotential, for examples are gravity, magnetic, selfpotential, etc. There are 3 Geophysical methods based on a research:
 
a.       At the surface (Near surface)
b.       In boreholes (Well logging)
c.       From air (Air born)

    Overall field of study Geophysical Engineering include meteorology, solid earth geophysics (seismological studying earthquakes, volcanoes / volcanology, geodinamica study the dynamics of the movement of the plates on the earth, and seismic exploration used in the search for hydrocarbons), and oceanography.



         The Role of Geophysics is …     

The role of Geophysic  is to process inventory and exploration of natural resources (minerals, oil and gas, ground water), terrestrial disaster mitigation (earthquakes, eruptions volcanoes, land movement, tsunami, etc.), monitoring destruction of the environment, helping regional development planning, and Geotechnical engineering.

In geothermal aims to find the source of heat, the fluid flow and subsurface structures, as well as their rock subsurface reservoir and trap. In the field of mining engineering geophysics role in search for mineral resources whether in the form mineral in veins associated with volcanic activity and minerals derived from the accumulation of sediment.


In the field of civil engineering, geophysics role in search for ground water (ground water) as well as the conditions stability of the land is in an area.




Reference : Kompetence Geophysical Techniques by Dr. Muhammad Syukri M.T
                
                    Telford, W. M. 1996. Applied Geophysics.

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