Advanced physics

If Point B in the image below is 2000 kilometers from the mid-ocean ridge, at what did it spread away from the mid-ocean ridge? Answer in km/Ma. Magnetic anomalies at mid-ocean ridges Mid-ocean ridge axis Magnetic reversal time scale OM normal B 18 Ma normal reversed 35 Ma normal 50 Ma reversed TO Ma Map of magnetic anomalies at a mid-ocean ridgeIf Point B in the image below is 2000 kilometers from the mid-ocean ridge, at what did it spread away from the mid-ocean ridge? Answer in km/Ma. Magnetic anomalies at mid-ocean ridges Mid-ocean ridge axis Magnetic reversal time scale OM normal B 18 Ma normal reversed 35 Ma normal 50 Ma reversed TO Ma Map of magnetic anomalies at a mid-ocean ridge