This document contains detailed notes on How Fast Does a Plate Move from Chapter 7: Plate Tectonics of the A Level Geology course. It includes all the information required to secure a top grade in this part of the course. These notes took me many hours to complete and are how I revised for my exams.
, How Fast Does a Plate Move?
• The fit of the coastlines of South and North America with Africa and
Europe and the occurrence of the Mid-Atlantic Ridge halfway
between suggests that seafloor spreading took place by the splitting
apart of a larger continental landmass (Gondwanaland).
• The date when the splitting began and the rate of spreading can be
estimated from:
➢ The age of the youngest rocks affected by the split and the distance
between them now on either side of the Atlantic.
➢ The age of the basalt lavas at known distances from the MOR.
➢ The age and thicknesses of the sediments at known distances from
the MOR.
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