J-Anomaly Ridge Explained

The J-Anomaly Ridge is a bathymetric feature in the North Atlantic Ocean, extending southwest from the eastern end of the Grand Banks of Newfoundland.^[1] It has a length of about 400km (200miles) and rises 1200m (3,900feet) above the general level of the Sohm Abyssal Plain.^[2] The ridge consists of anomalously thick oceanic crust that formed as a result of a major volcanic pulse during the Cretaceous.^[3]

External links

• MAGAX. J-Anomaly Ridge. 2021-02-11.
• Web site: Marine Gazetteer Placedetails: J-Anomaly Ridge. 2021-02-11.

40.5°N -51°W

Notes and References

1. Tucholke. Brian E.. Ludwig. William J.. Structure and Origin of the J Anomaly Ridge, Western North Atlantic Ocean. American Geophysical Union. Journal of Geophysical Research. 1982. 87. B11. 9389. 10.1029/JB087iB11p09389 . 1982JGR....87.9389T . 1912/5786 . 0148-0227. free.
2. Uchupi. Elazar. Austin. James A.. The stratigraphy and structure of the Laurentian Cone region. Canadian Journal of Earth Sciences. NRC Research Press. 1727, 1732. 16. 1979. 9 . 10.1139/e79-160 . 1979CaJES..16.1726U . 1480-3313.
3. Louden. Keith. Tectonic Evolution of the East Coast of Canada. Recorder. Canadian Society of Exploration Geophysicists. 27. 2. 2002. 2021-02-11.