Four billion years ago, but not so different: Plate tectonics likely looked closer to what we experience today
More specifically, they studied zircons in the 3.9–2.7-billion-year-old Saglek-Hebron Complex and 4.0–3.4-billion-year-old ...
Canadian Geographic1mon
Fall Exploration with Canadian Geographic
At 4 billion years, part of this ancient crust, known as the Acasta Gneiss, is the oldest known rock in the world. During your time at the Lodge, a wide variety of guided and self-guided activities ...
Princeton University4y
Marcia Bjornerud
Featuring dozens of entries—from Acasta gneiss to Zircon—this illustrated compendium is brimming with lapidary and lexical insights that will d... Read More Marcia Bjornerud on Grandmothers of ...
Natural History Museum%2c London1y
Travelling 2.7 billion years back in time on the search for the UK's oldest rock
Called Lewisian gneiss, it’s the oldest rock in the UK. It’s found in the northwest extremity of the Scottish mainland and the Western Isles. The gneiss’s new home is in our gardens, where it forms ...
BBC11mon
Fears grow as troubled Camden flats deteriorate
Acasta has disputed the level of coverage and what it includes. Mr Gove wrote to Acasta in May, describing its behaviour as "unacceptable". Ms Druzhin's neighbour Daniel Bruce, 40, invested his ...