SNOWBALL EARTH THEORY. “It has long been observed that the sequence of sedimentary rocks deposited in the past half-billion years often sharply overlies older igneous or metamorphic basement at an erosional surface known as the Great Unconformity. We provide evidence that this unconformity may record rapid erosion during Neoproterozoic “snowball Earth” glaciations.”
https://lnkd.in/d6fatHN
linkedin post 2022-06-29 05:12:48
Nigel Fleming
September 21, 2022