MODMAG, a MATLAB program to model marine magnetic anomalies

Identifying marine magnetic anomalies is the most common way to date the ocean floor. Although the technique of magnetic anomaly identification has not changed since the 1960s, a forward modeling software that is easy to use, fast and automatic, without abstruse parameters, was lacking. We present a...

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Bibliographic Details
Published inComputers & geosciences Vol. 31; no. 5; pp. 589 - 597
Main Authors Mendel, Véronique, Munschy, Marc, Sauter, Daniel
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.06.2005
Elsevier Science
Elsevier
Subjects
Earth Sciences
Earth, ocean, space
Exact sciences and technology
Forward modeling
Geophysics
Geophysics: general, magnetic, electric and thermic methods and properties
Internal geophysics
Magnetic anomalies
Marine
Marine geology
MATLAB
Mid-oceanic ridges
Physics
Sciences of the Universe
Southwest Indian Ridge
Galapagos Islands
Magnetic anomalies
Forward modeling
Mid-oceanic ridges
MATLAB
models
interfaces
computer programs
mid-ocean ridges
software
Indian Ocean
Quaternary
sea-floor spreading
data processing
upper Quaternary
Brunhes Epoch
marine environment
ocean floors
management
East Pacific Ocean Islands
Cenozoic
Phanerozoic
spreading centers
computers
magnetic anomalies
Géosciences marines
Sciences de la terre
Sciences du logiciel
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Summary:Identifying marine magnetic anomalies is the most common way to date the ocean floor. Although the technique of magnetic anomaly identification has not changed since the 1960s, a forward modeling software that is easy to use, fast and automatic, without abstruse parameters, was lacking. We present a user-friendly MATLAB-based interface, called MODMAG, which allows one to perform forward modeling of marine magnetic anomalies resulting from several successive spreading periods with different spreading rates and asymmetric spreading possibly alternating with axial jumps. The main advantage of our program is that the management of the magnetized bodies resulting from such successive spreading periods is not the user's responsibility. Spreading parameters can be set easily for the picking of the marine magnetic anomalies. Non-specialist geophysicists or geologists can therefore easily identify marine magnetic anomalies with the help of MODMAG.
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ISSN:0098-3004
1873-7803
DOI:10.1016/j.cageo.2004.11.007