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Anni [7]
3 years ago
11

Assuming that the South Atlantic began forming 135 million years ago, and has been spreading steadily ever since, calculate the

full seafloor spreading rate in cm/yr at the equator near Romanche Fracture zone (~3,500 km away from Africa).
Geography
1 answer:
svlad2 [7]3 years ago
7 0

Answer:

The answer is 5.1852 cm/yr .

Explanation:

In order to calculate the full seafloor spreading rate in cm/yr, we have to first calculate the half-spreading rate which can be done by simply dividing the given distance (in cm) by time (yr); after calculating the half-spreading rate, we will double it and get the full seafloor spreading rate, thus:

Distance = 3,500 km = 3,500 × 100,000 cm = 350,000,000 cm

Time = 135,000,000 years

The half-spreading rate = distance ÷ time = 350,000,000 ÷ 135,000,000 = 2.5926 cm/yr .

Therefore, the full seafloor spreading rate = 2.5926 cm/yr × 2 = 5.1852 cm/yr.

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