earth scienceDetermine the rate of seafloor spreading for the Pacific and North Atlantic Ocean basins. As an example, the South Atlantic has been completed.
a. South Atlantic: distance $=72 \mathrm{~km}$ $\times 100,000 \mathrm{~cm} / \mathrm{km}=7,200,000 \mathrm{~cm}$
Rate of spreading $=\frac{7,200,000 \mathrm{~cm}}{2,000,000 \mathrm{yr}}=3.6 \mathrm{~cm} / \mathrm{yr}$
b. North Atlantic: distance ______________ km $\times$ 100,000 cm/km $=$ __________________ cm
Rate of spreading _________________ cm/yr
c. Pacific: distance ______________________ km $\times$ 100,000 cm/km $=$ ___________________ cm
Rate of spreading _________________ cm/yr