Ancient Diamonds Open a Window on Planet Earth 3.5 Billion Years Ago

ourhomeplanet

Archaean Eon diamonds dug up from ancient rock formations in the Johannesburg area, between 1890 and 1930 – before the industrialisation of gold mining – have revealed secrets of how the Earth worked more than 3.5 billion years ago, confirming…

from The Daily Galaxy –Great Discoveries Channel: Sci, Space, Tech http://ift.tt/1nvPC36
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