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Magnetic anomalies in the South Atlantic and ocean floor spreading
Abstract
Magnetic profiles across the South Atlantic Ocean from the Rio Grande rise and Argentine basin to the southwest coast of Africa and between 25° and 50°S are presented. Anomalies have been correlated from profile to profile, and the resulting magnetic pattern is parallel to and symmetric about the axis of the mid-Atlantic ridge. The observed magnetic pattern in the South Atlantic Ocean is very similar to the pattern observed across the East Pacific rise in the Pacific Ocean. The results have been interpreted as supporting ocean floor spreading and the hypothesis of Vine and Matthews for the origin of the anomalous field. Possible fracture zones, the Rio Grande rise, and the Walvis ridge are discussed.
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Citations
Cited by
Sea-floor spreading and continental drift
Le Pichon, X. (1968) · Journal of Geophysical Research · doi:10.1029/jb073i012p03661 · Cited by 1,537
The evolution of the Indian Ocean since the late Cretaceous
McKenzie, D., & Sclater, J. G. (1971) · Geophysical Journal International · doi:10.1111/j.1365-246x.1971.tb02190.x · Cited by 929
Relative motion of the Nazca (Farallon) and South American Plates since Late Cretaceous time
Pardo‐Casas, F., & Molnar, P. (1987) · Tectonics · doi:10.1029/tc006i003p00233 · Cited by 855
Numerical Modelling of Instantaneous Plate Tectonics
Minster, J. B., Jordan, T. H., Molnar, P., & Haines, E. (1974) · Geophysical Journal International · doi:10.1111/j.1365-246x.1974.tb00613.x · Cited by 795
The tectonic evolution of the South Atlantic from Late Jurassic to present
Nürnberg, D., & Müller, R. D. (1991) · Tectonophysics · doi:10.1016/0040-1951(91)90231-g · Cited by 508
Metadata
- Authors
- Dickson, G. O., Pitman, W. C., & Heirtzler, J. R.
- Venue
- Journal of Geophysical Research
- Publisher
- American Geophysical Union (AGU)
- Published
- 1968-03-15
- Volume
- 73
- Issue
- 6
- Pages
- 2087-2100
- ISSN
- 0148-0227 (ISSN-L)
- OpenAlex
- W2036737509
- Cited by
- 199
- References
- 0
- FWCI
- 26.82
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Magnetic anomalies in the South Atlantic and ocean floor spreading. https://app.cochat.ai/papers/10.1029/jb073i006p02087
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- Dickson, G. O., Pitman, W. C., & Heirtzler, J. R. (1968). Magnetic anomalies in the South Atlantic and ocean floor spreading. Journal of Geophysical Research. https://doi.org/10.1029/jb073i006p02087
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
