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19 January, 12:49

8. You find a 10,000,000 year old rock 2,500 km away from the nearest seafloor spreading center, how fast has the plate been moving since its formation? Give answer in cm/yr. (Hint: 1 km = 100,000 cm)

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  1. 19 January, 16:03
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    You find a 10,000,000 year old rock 2,500 km away from the nearest seafloor spreading center. The plate has been moving since its formation by (2,500 km) (100,000 cm/1 km) / (10,000,000 yr). so the plat has been moving equal to 25 cm per year since its formation.
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