Magnetic Prospecting Modeling of Seamount with COMSOL Multiphysics

G. Ha, S.-S. Kim [1]
[1] Chungnam National University, Daejon, Korea
Published in 2015

In general, seamount magnetic modeling assumes uniform magnetization for the entire construct. The following geologic obervations are often not considered: 1. The internal structure composed of multiple volcanic layers, and 2. Remanent magnetization gained during the magnetic polarity reversals.

In this study, we build synthetic models based on these geological building processes of seamounts. We think that the observed magnetic data from seamount would be strongly affected by the magnetic information of the thickest and the closest volcanic layer from the surface. To verify this hypotheses, we compare 5-layered synthetic models with uniformly magnetized model and investigate which layer is the most influence to the observed data.