Soil and snow radon anomaly over Faraday Mine, Bancroft, Ontario

  • The anomaly is shifted downhill, as is normal in geochemical soil surveys.
  • Going downhill from the ore (pegmatite) the first response is shown by radon in snow.
  • The next response is shown by radium in the A and B horizons, and by uranium in the B horizon.
  • The response of uranium in the A horizon is further downhill.
  • At the bottom of the hill in a swampy area at the spring all indicators are high. High radon values in snow here are due to high radium values in the underlying soil.
  • Our instruments have the advantage of instant results at the sample site, with the possibility of immediate follow-up and checking.
  • Our instruments also determine thoron, and the Rn/Tn ratio is important in recognising false anomalies due to soil permeability.

  • We measure: radon - radium - thoron - radon daughters - alpha radiation.
  • The Lucas cell is recognized as the most sensitive and reliable method for these elements.
  • Our instruments are used around the world in exploration for uranium, oil & gas, groundwater and hydrothermal, and in environmental protection, health physics, earthquake prediction, and evaluation of hydrocarbon and NAPL contamination.
  • In the radon business since 1968, our latest major instrument update was 2015.
  • Modern, low-power, field-rugged electronics. Some earlier versions still working after 35 years.
  • Continuous real-time monitoring and data recording.
  • Winter and summer, from the Sahara Desert to the Canadian Shield, our instruments have faced up to severe field conditions.
  • Intrinsically safe functions.
  • Sensitive to geochemical trace levels necessary for radon in lake water and for radon-thoron isotope ratios.
  • Can work in a tent without electricity or be carried from point to point in the field.
  • 50 readings per day. Results available immediately.
  • Rechargeable battery pack good for a long day in the field and recharges in a few hours.
  • Can be operated by junior personnel if carefully supervised.
  • Same instruments used for radon and radium in soil, sediment, plant parts, rocks, water, soil gas, air, and snow, and for radon daughters in air.
  • EPA compliant.
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  • Technical specification sheets and pictures of our instruments provided on request.
  • Multilingual consulting and training (if required).
For instruments contact
R.H. Morse & Associates Ltd.
skype: robert.morse.toronto

Robert H. Morse, Ph.D., P.Eng.
June 11, 2012
soil geochemistry and radon in snow, 
Faraday Mine, Bancroft
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