aegir ridge造句

• At this time activity on the Aegir Ridge died away and the microcontinent became part of the Eurasian Plate.
• The relatively thin crust and short lifespan of the Aegir Ridge is anomalous given its proximity to the Iceland hotspot.
• During the period when both the Kolbeinsey and Aegir ridges were active, the microcontinent underwent a 30? 50?anti-clockwise rotation.
• This was caused by the northeastward propagation of the Kolbeinsey Ridge, with simultaneous reduction in the rate of spreading at the southwestern end of the Aegir Ridge.
• Likely, the stresses associated with plate tectonics and the mechanical structure of the lithosphere created a situation in which spreading at the Kolbeinsey Ridge was energetically favorable to spreading at the Aegir Ridge.
• As the Kolbeinsey Ridge began rifting, hotspot material would then draw out of the Aegir Ridge and flow preferentially towards the Kolbeinsey Ridge, leading to the ultimate extinction of the spreading center.