Airborne gravity and magnetics interpretation of the Putumayo and Upper Magdalena Valley, Colombia

Ceron, John; Horscroft, T. R.; Bain, John E.

doi:10.1190/1.1886107

Cited by 2 publications

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“…Gravity techniques have been used for many years to map the geometry and features of remote basins (e.g., Paterson and Reeves, 1985;Peirce and Lipkov, 1988;Pratsch, 1998;Jacques et al, 2003). Much of the recent work has been done using airborne gravity (e.g., Ceron et al, 1997), but most of that remains unpublished. With the dramatic improvements of the resolution of airborne gravity and gradiometry with GPS navigation, airborne gravity is now used much more widely in mining (Liu et al, 2001;Elieff, 2003;Elieff and Sander, 2004) as well as in hydrocarbon exploration on a more target-specific basis, e.g., surveys in offshore Mexico and in the foothills environment (Peirce et al, 2002).…”

Section: Applications Of Gravity Measurementsmentioning

confidence: 99%

Historical development of the gravity method in exploration

et al. 2005

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The gravity method was the first geophysical technique to be used in oil and gas exploration. Despite being eclipsed by seismology, it has continued to be an important and sometimes crucial constraint in a number of exploration areas. In oil exploration the gravity method is particularly applicable in salt provinces, overthrust and foothills belts, underexplored basins, and targets of interest that underlie high-velocity zones. The gravity method is used frequently in mining applications to map subsurface geology and to directly calculate ore reserves for some massive sulfide orebodies. There is also a modest increase in the use of gravity techniques in specialized investigations for shallow targets. Gravimeters have undergone continuous improvement during the past 25 years, particularly in their ability to function in a dynamic environment. This and the advent of global positioning systems (GPS) have led to a marked improvement in the quality of marine gravity and have transformed airborne gravity from a regional technique to a prospect-level exploration tool that is particularly applicable in remote areas or transition zones that are otherwise inaccessible. Recently, moving-platform gravity gradiometers have become available and promise to play an important role in future exploration. Data reduction, filtering, and visualization, together with low-cost, powerful personal computers and color graphics, have transformed the interpretation of gravity data. The state of the art is illustrated with three case histories: 3D modeling of gravity data to map aquifers in the Albuquerque Basin, the use of marine gravity gradiometry combined with 3D seismic data to map salt keels in the Gulf of Mexico, and the use of airborne gravity gradiometry in exploration for kimberlites in Canada.

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Section: Applications Of Gravity Measurementsmentioning

confidence: 99%

Historical development of the gravity method in exploration

et al. 2005

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6. Gravity Exploration Methods

Nabighian¹,

Ander²,

Grauch³

et al. 2010

Geophysics Today

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The gravity method was the first geophysical technique to be used in oil and gas exploration. Despite being eclipsed by seismology, it has continued to be an important and sometimes crucial constraint in a number of exploration areas. In oil exploration the gravity method is particularly applicable in salt provinces, overthrust and foothills belts, underexplored basins, and targets of interest that underlie high-velocity zones. The gravity method is used frequently in mining applications to map subsurface geology and to directly calculate ore reserves for some massive sulfide orebodies. There is also a modest increase in the use of gravity techniques in specialized investigations for shallow targets.Gravimeters have undergone continuous improvement during the past 25 years, particularly in their ability to function in a dynamic environment. This and the advent of global positioning systems (GPS) have led to a marked improvement in the quality of marine gravity and have transformed airborne gravity from a regional technique to a prospect-level exploration tool that is particularly applicable in remote areas or transition zones that are otherwise inaccessible. Recently, moving-platform gravity gradiometers have become available and promise to play an important role in future exploration.Data reduction, filtering, and visualization, together with low-cost, powerful personal computers and color graphics, have transformed the interpretation of gravity data. The state of the art is illustrated with three case histories: 3D modeling of gravity data to map aquifers in the Albuquerque Basin, the use of marine gravity gradiometry combined with 3D seismic data to map salt keels in the Gulf of Mexico, and the use of airborne gravity gradiometry in exploration for kimberlites in Canada.

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Airborne gravity and magnetics interpretation of the Putumayo and Upper Magdalena Valley, Colombia

Cited by 2 publications

References 0 publications

Historical development of the gravity method in exploration

Historical development of the gravity method in exploration

6. Gravity Exploration Methods

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