Asian Journal of Earth Sciences1819-18862152-3509Academic Journals Inc.10.3923/ajes.2008.62.76BerguigM.C.HamoudiM.CohenY.ThebaultE.2200812The purpose of this research is to investigate the internal
origin hypothesis by assuming that the crustal lunar magnetic field was
generated by a paleo-dynamo process. The study is focused on four comparatively
high intensity magnetic anomalies associated with high marked swirl albedo.
These four formations: Reiner Gamma, Descartes Formation, Mare Marginis
and Mare Ingenii, all having a similar Imbrian age, can also be fairly
well modeled using simple magnetized disks at depth. Using these simple
assumptions, the paleomagnetic pole positions have been determined. The
modeling of these anomalies shows a cluster of paleomagnetic pole positions
within a radius of about 35 degrees centered at (30S, 215E). These preliminary
results are consistent with the hypothesis of a now extinct paleo-dynamo
being responsible for magnetization of lunar crust. However, a more statistical
analysis remains to be done over regions of weaker magnetic anomalies
to be fully conclusive.]]>Andolz, F.J., T.A. Daugherty and A.B. Binder,1998Binder, A.,1998Blakely, R.J.,1996Blewett, D., B. Ray and P.G. Lucey,2005Butler, R.F.,1992Cisowski, S.M., D.W. Collinson, S.K. Runcorn, A. Stephenson and M. Fuller,1983Collinson, D.W.,1993Daubechies, I.,1992Dyal, P., C.W. Parkin and W.D. Daily,1974Fedi, M. and T. Quarta,1998Fuller, M.,1974Fuller, M. and S. Cisowski,1987Halekas, J.S., D.L. Mitchell, R.P. Lin, S. Frey, L.L. Hood, M.H. Acuña and A.B. Binder,2001Halekas, J.S., D.L. Mitchell, R.P. Lin, L.L. Hood, M.H. Acuna and A.B. Binder,2002Hood, L.L. and G. Schubert,1980Hood, L.L., C.T. Russell and P.J. Coleman Jr.,1981Hood, L.L. and Z. Huang,1991Hood, L.L., D.L. Mitchel, R.P. Lin, M.H. Acuña and A. Binder,1999Hood, L.L., A. Zakharian, J.S. Halekas, D.L. Mitchell, R.P. Lin, M.H. Acuña and A.B. Binder,2001Hood, L.L., C.N. Young, N.C. Richmond and K.P. Harrison,2005Hood, L.L. and N.A. Artemieva,2008Khan, A., K. Mosegaard, J.G. Williams and P. Lognonné,2004Leblanc, G.E. and W. Morris,2001Lin, R.P., D.L. Mitchell, D.W. Curtis, K.A. Anderson, C.W. Carlson, J. McFadden, M.H. Acuna, L.L. Hood and A.B. Binder,1998Ness, N.F.,1971Nicholas, J.B., M.E. Purucker and T.J. Sabaka,2007Parker, R.L., L. Shure and J.A. Hildebrand,1987Parker, R.L.,1991Parker, R.L.,2003Richmond, N.C., L.L. Hood, J.S. Halekas, D.L. Mitchell, R.P. Lin, M.H. Acuña and A.B. Binder,2003Richmond, N.C., L.L. Hood, J.S. Halekas, D.L. Mitchell, R.P. Lin, M.H. Acuña and A.B. Binder,2005Schultz, P.H. and L.J. Snrka,1980Thebault, E., V. Lesur and M. Hamoudi,2008