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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
- IIT JAM
- Geology (GG)
An oceanic plate is moving away from the spreading center at a speed of 6 cm/yr. assuming that the plate motion is constant with geological time, the locationof
An oceanic plate is moving away from the spreading center at a speed of 6 cm/yr. Assuming that the plate motion is constant with geological time, the locationof the Gauss Gilbert paleomagnetic epoch boundary from the spreading center will be at approximate distance o OA. 155 Km. OB. 215 Km. O O C. 350 Km. O D. 402 Km.
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Saurabh 1![best-answer]()
It's a confusing one cuz you can see in different books the age of the respective gauss-gilbert paleomagnetic epoch (Or chrons) boundary lies between 3.32Ma to 3.58 Ma. So there seems to be some discrepancy in the question framing. Let's consider that age to be 3.58Ma. Now, we have Spreading rate (v) = 6cm/yr = 6×10^–5 km/yr Age (t) = 3.58 Ma = 3.58×10^6 yr So distance or location of the respective magnetic chrons boundary is equal to = 6×3.58×10^-5 × 10^6 = 60×3.58 km ~ 215km. (Note: But I'm not sure for the answer as there is some error in question or the question needs some modifications).