Supplementary material to “Mapping Geomagnetic Field Variations With Unmanned Airborne Vehicles”
Jeffrey S. Gee and Steven C. Cande, Scripps Institution of Oceanography, La Jolla, California
Dennis V. Kent, Department of Geological Sciences, Rutgers University, Piscataway, New Jersey, and Lamont-Doherty Earth Observatory, Palisades, New York
Richard Partner and Kate Heckman, Fugro Aviation Canada Limited, Ottawa, Ontario, Canada
Citation:
Gee, J. S., S. C. Cande, D. V. Kent, R. Partner, and K. Heckman (2008), Mapping geomagnetic field variations with unmanned airborne vehicles, Eos Trans. AGU, 89(19), 178–179.
[Full Article (pdf)]
Fig. S1. Geomagnetic polarity timescale and corresponding synthetic anomalies for 0–160 million years ago illustrating the unique 37-million-year-long Cretaceous Quiet Zone (KQZ). Solid and open blocks indicate intervals of normal and reverse polarity. Key chrons that were used as calibration points are identified above the bar graph, and correlated positions of geologic periods (N/P, Neogene/Paleogene; P/K, Paleogene/Cretaceous; K/J, Cretaceous/Jurassic) are shown below. From Gee and Kent [2007].
Fig. S2. (left) Location of survey tracks in the southwestern Pacific Ocean. W indicates Wellington; P indicates Pago Pago; and TJT indicates Tongareva triple junction trace. The location of Late Cretaceous anomalies 33y (73.62 Ma), 33o (79.08 Ma), and 34y (83.00 Ma) marking the young end of the KQZ are shown for reference. (right) Enlarged view of the survey, with ship tracks in blue and UAV tracks in red. Box indicates the area shown in Figure S3.
Fig. S3. Bathymetric and magnetic data from a portion of the survey. Surface-towed magnetometer data are shown in blue, and unmanned airborne vehicle data from two flights are shown in red and pink. The flight plan (offset for clarity) illustrates the repeating pattern used to obtain three additional magnetic profiles parallel to the ship track (black).
