Diamond-encrusted rock samples that have been found on a Canadian island fill ‘a piece in the puzzle’ to reconstruct an ancient part of Earth's continental crust. A fragment of the North Atlantic Craton (NAC) was found by geologists who were sifting through diamond exploration samples from the southern Baffin Island, Canada. The NAC is an ancient part of Earth’s continental crust that reaches around the top of the northern hemisphere, from Scotland to the Canadian region of Labrador, deep underground. It is a type of igneous rock - rock that is formed through the cooling and solidification of magma or lava. Kimberlite rock samples – which are not just located in Canada – are described as a mainstay of diamond exploration.

Source: Daily Mail March 20, 2020 17:49 UTC