Tag: tectonics
Pole reversal as early as 3.25 billion years ago – did the earth’s magnetic field, geodynamo and plate tectonics already exist in the early days of earth?
Earlier than expected: 3.25 billion years ago, the earth had a stable geodynamo and a magnetic field – and experienced the first polarity reversal. Evidence of this is provided by…
Geology: How plate tectonics affects climate
New ocean floor forms much more slowly today than it did 15 million years ago. What this could be related to – and what that means for global warming. source…