Stratigraphic Columns
Analyze the data and explain how these two stratigraphic columns are further evidence of continental drift.
This shows that these two continents were once together because everything except for the first layer of items are the same. This is the latest layer of land, the layer that you would stand on if you went there. MYA (the numbers next to the specimens) stands for MILLIONS OF YEARS AGO. The date for everything before the first layer of land is the same, showing that these continents were once together (Pangea). For example, the Volcanics are both in the 100 - 150 MYA range. The first layer is probably different because Pangea has been split apart for millions of years, so it makes sense that there might have been a new layer of land created after Pangea split apart. When Pangea split a part, the took all of the same bottom layers with them and became individual landmasses.
This shows that these two continents were once together because everything except for the first layer of items are the same. This is the latest layer of land, the layer that you would stand on if you went there. MYA (the numbers next to the specimens) stands for MILLIONS OF YEARS AGO. The date for everything before the first layer of land is the same, showing that these continents were once together (Pangea). For example, the Volcanics are both in the 100 - 150 MYA range. The first layer is probably different because Pangea has been split apart for millions of years, so it makes sense that there might have been a new layer of land created after Pangea split apart. When Pangea split a part, the took all of the same bottom layers with them and became individual landmasses.
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