Ancient Massive Volcanic Eruption Still Mystifies
The largest volcanic event of the last 300 million years may not have been triggered by a meteor, researchers now say.
About 120 million years ago, as much as 1 percent of the Earth's surface may have been covered with volcanic eruptions. The origin of these massive 7-million-year-long eruptions in the Pacific Ocean, known as the Greater Ontong Java Event, has long been unclear, but some have suggested a cosmic impact as the trigger, smashing into the crust and causing lava to burst forth.
To see whether or not a meteor might have caused the Greater Ontong Java Event, scientists analyzed rocks from Gorgo a Cerbara in central Italy. This area was connected to the Pacific Ocean during the eruptions....
comments powered by Disqus
- ‘Hamilton’ Puts Politics Onstage and Politicians in Attendance
- Earth Tectonic Plate Simulation Reveals Our Planet Has Changed A Lot In 200 Million Years
- For G.O.P., Support for Israel Becomes New Litmus Test
- Yale’s Beinecke Library Buys Vast Collection of Lincoln Photos
- A grandmother’s trove of Civil War photos goes to Library of Congress
- Role-playing history game gets students jazzed
- OAH denounces anti-gay legislation signed by Indiana governor
- Emory’s Leslie Harris says we should remember the racist roots of American colleges as we think about what went wrong at OU and other schools
- Stanford historian looks to the U.S. Postal Service to map the boom and bust of 19th-century American West
- U.S. historian denounces Japanese scholars' statement over wartime sexual slavery