Geologists uncover ancient rocks revealing Earth’s earliest magnetic field dating back to 3.7 billion years

NEW DELHI: Geologists from MIT and Oxford University have made a significant discovery in Greenland, unearthing ancient rocks that hold clues to Earth’s earliest magnetic field.These rocks, well-preserved, offer insights into conditions on Earth billions of years ago. Researchers determined them to be approximately 3.7 billion years old, showing remnants of a magnetic field with … Read more