Helium leakage from Earth’s mantle in Los Angeles Basin

Geologists have found evidence of helium leakage from Earth’s mantle along a 30-mile stretch of the Newport-Inglewood Fault Zone in the Los Angeles Basin. Using samples of casing gas from two dozen oil wells ranging from LA’s Westside to Newport Beach in Orange County, researchers discovered that more than one-third of the sites — some of the deepest ones — show evidence of high levels of helium-3 (3He). —> Read More