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Related Experiment Videos

Explosive helium burst in thermal spring emanations.

Nisith K Das1, Rakesh K Bhandari, Debasis Ghose

  • 1Variable Energy Cyclotron Center, 1/AF Bidhannagar, Kolkata 700064, India. nkdas@veccal.ernet.in

Applied Radiation and Isotopes : Including Data, Instrumentation and Methods for Use in Agriculture, Industry and Medicine
|August 30, 2005
PubMed
Summary

An explosive helium burst with 61.6% helium was observed in thermal springs. This anomalous gas concentration, including deuterium, may signal recent tectonic disturbances.

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Nonlinear response of radon and its progeny in spring emission.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicineยท2008
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Area of Science:

  • Geochemistry
  • Geophysics

Background:

  • Thermal springs release gases, typically with low helium concentrations.
  • Anomalous gas compositions can indicate subsurface processes.

Purpose of the Study:

  • To report the first observation of an explosive helium burst in thermal spring gas.
  • To investigate the potential link between anomalous gas concentrations and tectonic activity.

Main Methods:

  • Gas chromatography was used to analyze the composition of thermal spring gases.
  • Observations were correlated with recent major tectonic events.

Main Results:

  • An explosive helium burst event was detected, showing a helium concentration of 61.6 vol%.
  • Deuterium was also observed at an elevated level of 1.7 vol%.

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  • These findings represent the first such observation using gas chromatography.

    • Conclusions:

    • The observed anomalous helium and deuterium concentrations may serve as a precursory signal for tectonic disturbances.
    • Further research is needed to confirm the correlation between these gas bursts and seismic events.