In western San Diego county there are three igneous bodies that had no previous paleomagnetic work done on them. Two intrude Eocene, flat-lying sediments, and all are assumed to be Tertiary. Between seven and eight or_iented cores were collected from each body. Lithologies range from basaltic to dacitic. The samples were measured for their natural remanent magnetization and then magnetically cleaned and re-measured. The direction of magnetization at two of the sites yielded good groupings. One site yielded poor results, not grouping at all and had weak intensities. All displayed more easterly declinations ( N30E) than expected and steeper inclinations than expected. A magnetic survey was also conducted over one of the sites- Scripps Dike just north of La Jolla. Modeling of the magnetic anomaly from this survey suggests the dike is nearly vertical and thickens with depth.
