Abstract
We have measured ³He/4He and 4He/20Ne ratios of gas samples collected at Lake Nyos where a toxic gas disaster occurred on August 21, 1986 and at Lake Monoun in Cameroon, West Africa. The ³He/4He ratios, corrected for air contamination, are 5.39–5.75 Ratm (where Ratm is the atmospheric ratio of 1.40 × 10−6) for Lake Nyos and 3.56 Ratm for Lake Monoun. The data suggest a significant contribution of mantle‐derived helium in these Cameroon volcanic crater lakes. The origin of CO2 gas “erupted” during Lake Nyos disaster is inferred to be of magmatic origin based on the high ³He/4He ratio.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.