HR: 1340h
AN: GP43B-1222    [Abstracts]
TI: Application of the Analytic Signal Technique to Calculate Magnetization ¡V Density Ratio of a structural boundary
AU: * Doo, W
EM: wnebindoo@gmail.com
AF: Institute of Geophysics, National Central University, No.300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan (R.O.C.), Jhongli, 32001,
AU: Hsu, S
EM: hsu@cc.ncu.edu.tw
AF: Institute of Geophysics, National Central University, No.300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan (R.O.C.), Jhongli, 32001,
AU: Tsai, C
EM: s0642002@gmail.com
AF: Institute of Geophysics, National Central University, No.300, Jhongda Rd., Jhongli City, Taoyuan County 32001, Taiwan (R.O.C.), Jhongli, 32001,
AB: The Poisson theorem provides suitable relationships between the gravity and magnetic anomalies. Based on Poisson theorem, magnetization-density ratio can be estimated. An accurate estimate of magnetization-density ratio (MDR) can provide better constraints for further interpretation such as modeling. When combined with existing geologic and rock property data, it can serve as a supplement to geologic interpretation. In this study, we present simple analytical solutions by applying analytic signal to the Poisson¡¦s theorem. The major advantage of using the analytic signal is that we can determine the magnetic sources locations and magnetization density contrast. Therefore, using this method, we can not only estimate the MDR distribution of the subsurface sources, but also determine the sources boundaries.
DE: 1518 Magnetic fabrics and anisotropy
DE: 1522 Paleomagnetic secular variation
DE: 1535 Reversals: process, timescale, magnetostratigraphy
DE: 1540 Rock and mineral magnetism
DE: 1594 Instruments and techniques
SC: Geomagnetism and Paleomagnetism [GP]
MN: 2007 Fall Meeting