Snowball Earth – The argument for…

Worldwide Precambrian tillites have been recognised for some time. The closest to us is the Port Askaig Tillite in the Dalradian. Many contain striated boulders; the Smalfjord diamictite in northern Norway rests upon a striated pavement. The term diamictite is now generally used for tillites and rocks with a similar lithology. As geological knowledge and [...]

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