The oceanic crust created at the Mid-Atlantic Ridge eventually moves outward until it reaches a subduction zone, where it is recycled back into the mantle. By matching these magnetic stripes to the known geomagnetic reversal timeline, researchers can calculate how long ago specific sections of the ridge formed.
Mid Atlantic Ridge Age By Location Section
Romanche Trench Area Approx. Over millions of years, this system evolved, with segments becoming more defined and the ridge taking on the sprawling "S" shape we see today.
Scientists determine these ages by studying the magnetic properties of the seafloor. Reading the Rocks and Magnetic Stripes The age of the Mid-Atlantic Ridge is not a single number but a spectrum determined by distance.
Mid Atlantic Ridge Age By Location Section
16 to 20 million years old The only part rising significantly above sea level due to a hotspot. The Earth's magnetic field reverses irregularly over time, creating a striped pattern on the ocean floor.
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