Research
Ancient rocks reveal when Earth's tectonic engine 'switched on'
Phys.org ·
The Brief
- Scientists identified a major turning point in Earth's geological history around 2.5 billion years ago.
- At that time, crust-shaping processes changed dramatically and began to resemble modern plate tectonics.
- The findings are based on ancient rocks, according to the reported source.
Why it matters
The timing of when plate tectonics took on its modern character shapes how science reads the long-term evolution of Earth's crust, climate and habitability.
Who’s affected
- geologists and Earth scientists
- anyone interested in the history of Earth's crust
- #plate tectonics
- #geology
- #earth history
- #archean
- #rocks
Scientists have identified a major turning point in Earth's geological history, when the processes shaping the planet's crust changed dramatically and began to resemble the plate tectonics we see today—about 2.5 billion years ago.
Timeline
Earth News reports the study identifying the tectonic turning point around 2.5 billion years ago
Earth News - Earth Science News, Earth Science, Climate Change
Ancient rocks reveal when Earth's tectonic engine 'switched on'