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Life and planetary evolution
Currently Price is working on how life and planetary evolution interact. He is investigating how early impact events created a planet with a large moon, a stable magnetic field and an early ocean within which life could establish itself and prosper. In turn that life effected the evolution of the atmosphere, hydrosphere, and, we contend, the lithosphere, enabling plate tectonics to become established and the Earths magnetic field to be sustained. However, impacts continued to effect the evolution of our planet, and we argue that impacts or impact related volcanism (in the form of large igneous provinces) periodically triggered climate change, mass extinctions and subsequent evolutionary bursts, as well as recasting the tectonics of the lithosphere - triggering rifting and a reorganisation of the tectonic plates. Finally we look to explore Alistair Hardys Aquatic Ape Theory, that it was as a result of such a tectonic rifting and the opening of the Red Sea in the Miocene and Pliocene, that created the unique environment that enabled the evolution of the hominids in the Horn of Africa.
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Status: Active
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