Accretion of Granite-Rhyolite Province ( Ga ) resulting in the Nd line Terranes stitched together by the emplacement of anorogentic granites ( Ga) generation of TIKL? Whitmeyer and Karlstrom, 2007 Long wavelength magnetization Change in magnetization aligns with Nd- line Warm colors high susceptibility Cool colors low susceptibility Short wavelength magnetic anomalies Do magnetic highs mark locations of intrusive events that modified the crust? Abrupt transition from high to low anomaly marks the TIKL Previous Geophysical Observations (Ravat, 2007 ) (Ravat et al., 2009) Full-spectrum magnetic anomaly map Depth integrated magnetic contrasts Warm colors high susceptibility Cool colors low susceptibility Crustal modification OIINK Crustal Thickness