Abstract
ON February 16, 1963, an R.C.A.F. Argus aircraft flew a sortie from the Labrador coast to the southern tip of Greenland and back to the Strait of Belle Isle at an altitude of 200 ft. Total intensity values of the Earth's magnetic field were obtained at one-thirtieth nautical mile intervals along the track of the aircraft. These are shown in Fig. 1 using a scale of 20γ to a nautical mile. The regional gradient of the Earth's magnetic field has been removed. The track of the aircraft is shown in the inset and the letters refer to the points labelled on the profiles. It is readily apparent from the profiles that some distinctive magnetic anomalies occur in the area traversed. The largest anomaly recorded off the continental shelf was greater than 700γ in amplitude, where the depth of water, as indicated by Canadian Hydrographic Chart 7011, was more than 11,000 ft.
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HOOD, P., GODBY, E. Magnetic Anomalies over the Mid-Labrador Sea Ridge. Nature 202, 1099 (1964). https://doi.org/10.1038/2021099a0
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DOI: https://doi.org/10.1038/2021099a0
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