Findings of an ancient continent by Canadian Geologists
After properly analysing the rock samples which were dug up during the diamond exploration work, Canadian geologists came to a finding that the size of an ancient continent was 10% greater than the earlier estimate on its size.
This discovery was done by the researchers of University of British Columbia (UBC) while they were studying the samples of diamond from the largest island of Canada, which is the Baffin Island. During this study they identified a later part of one of the ancient fragments of the earth’s crust, which is also known as the North Atlantic Craton which moved from the Scotland to North America and broke down before 150 million years.
The scientist also mentioned that there were “mineral signature” displayed on the various other parts of this particular craton after they analysed the samples. Although the previous estimate on the size and location of the earth’s plates were done on the basis of relatively shallow samples which were taken from a depth of 10km below the earth’s crust, this new discovery was done after analysing and studying the samples of rocks which were extracted from a depth which is 200km below the earth’s crust. In the Journal of Petrology, there are also an addition of this findings displayed.