PEMODELAN ANOMALI GRAVITASI SESAR DENGAN PENDEKATAN MODEL SHEET (MODELLING GRAVITY ANOMALIES OF FAULT BY SHEET MODEL APPROACH)

*M Irham Nurwidyanto  -  Jurusan Fisika FMIPA Universitas Diponegoro, Indonesia
Ari Setiawan  -  Jurusan Fisika Universitas Gadjah Mada, Indonesia
Published: 1 Oct 2011.
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Abstract

AbstractThe modelling gravity anomaly of fault model with a model sheet approach with the aim to study the response of gravity anomalies of faults was done.Modelling is done by modelling approaches bedding with a thickness t and density contrastwith surrounding Δρ. The  gravity anomaly at a point are formulated and  the calculation andvisualization program created in matlab8RS. From the modelling is made it can be concluded that the fault position is generally locatedbetween the gravity anomaly minimum and maximum gravity anomaly. When thetypes of fault arevertical normal fault then the fault position precisely located on the horizontal gradient  maximumvalue, whereas when the fault are not vertical, the location of fault are  to be near (around) themaximum horizontal gradient.

Key words: modelling, gravity anomalies, faults, model sheets.

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Last update: 2021-04-15 08:22:53

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Last update: 2021-04-15 08:22:53

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