100 Years of Drift, Part 2: the evidence mounts
The evidence mounts: glacial striations, coal in Antarctica, and the distribution of dinosaurs (and others)
It’s been 100 years since Alfred Wegener proposed his idea of continental drift. Today’s blog continues the story we began yesterday – the tale of Wegener’s life and the development of his grand idea of mobile continents. This time, we’ll look at the significance of fossils and climate and how these contributed to the drift theory.
By 1900, most geologists and biologists accepted Darwin’s description of species evolution. Darwin noted that the offspring of various creatures, isolated from each other and exposed to different environments, evolve into quite different beings with the passage of time. For example, bison arose on the American plains while the wildebeest fills a similar ecological niche in Africa. Both form huge herds, mostly survive by grazing (eating grass and seeds), but also by a little browsing (munching on the odd shrub). Both animals have manes, wild beards, and both look like trouble.
But you would…
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Posted on February 5, 2016, in Geology and tagged Continental drift, Glaciation, Gondwanaland, Wegener. Bookmark the permalink. Leave a comment.
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