So much for scientific dating systems. Volcanoes near the south end of California’s Salton Sea last erupted less than 940 years ago, not 30,000 years ago, as previous dating has maintained.
Live Science reported the correction about theSalton Buttes
The buttes last erupted between 940 and0 B.C., not 30,000 years ago, as previously thought, a new study detailed online Oct. 15 in the journal Geology reports. The new age — which makes these some of California’s youngest volcanoes — pushes the volcanic quintuplets into active status. The California Volcano Observatory, launched in February by the U.S. Geological Survey (USGS), already lists the area as a high threat for future blasts.
New helium-zircon dating technique was used to arrive at the new date. Scientists really should have known that the cones were young. Native Americans worked the obsidian from the volcanoes between the fifth and sixth centuries BC, but probably not before that, because it wasn’t available before the last eruptions.