Radon in the New Zealand geothermal regions

Belin, R. E.

doi:10.1016/0016-7037(59)90053-5

Cited by 26 publications

(8 citation statements)

References 9 publications

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“…We find results of Belin (1959) for two samples for 222 Rn from fumaroles near KP 22 (Craters of the Moon) are similar to our KP 22 results in Table 1. This shows relative constancy over 40 years for unexploited fumaroles.…”

Section: Radiological Implications Of 220 Rn and 210 Po During Geothesupporting

confidence: 92%

“…The 220 Rn/ 222 Rn ratio from the Craters of the Moon fumarole KP 22 is a similar 1.34. For three nearby fumaroles, Belin (1959) found 2.2, 8.8 and 18 for this ratio, which are higher than our results but do not approach the Japanese results of 1000. In our results for rock analysis (Table 2), the concentrations of parent radionuclides 224 Ra and 226 Ra are comparable rather than being a factor of 1000 apart and are not a sufficient explanation for the wide range of radon concentrations.…”

Section: Similarity Of 220 Rn and 222 Rn Concentrationscontrasting

confidence: 81%

“…The radiochemical method for Rn has been more fully documented elsewhere (Whitehead and Ditchburn, 1996) and uses alpha spectrometry for detection, resulting in a much improved version of the method of Belin (1959). Gases are collected in an evacuated glass flask containing sodium hydroxide solution and 100 mg Pb carrier with 210 Pb as a yield tracer.…”

Section: Methodsmentioning

confidence: 99%

“…The range for the remaining wells is 2e77% of maximum theoretical and the median is 13(þ24, À8.3)%. The diffusion values cannot easily be compared with the calculated porosities of 20% for both Ohaaki and Wairakei fields (Bjornsson and Bodvarsson, 1990) which are different parameters describing relative void percentages rather than relative diffusion and permeability.…”

Section: How Much 222 Rn Can Diffuse Out?mentioning

confidence: 98%

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Systematics of radon at the Wairakei geothermal region, New Zealand

Whitehead¹,

Barry²,

Ditchburn³

et al. 2007

Journal of Environmental Radioactivity

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Section: Radiological Implications Of 220 Rn and 210 Po During Geothesupporting

confidence: 92%

Section: Similarity Of 220 Rn and 222 Rn Concentrationscontrasting

confidence: 81%

Section: Methodsmentioning

confidence: 99%

Section: How Much 222 Rn Can Diffuse Out?mentioning

confidence: 98%

See 2 more Smart Citations

Systematics of radon at the Wairakei geothermal region, New Zealand

Whitehead¹,

Barry²,

Ditchburn³

et al. 2007

Journal of Environmental Radioactivity

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“…Arndt and Kuroda [1953] found that spring lost about 40% of their radon in the first meter from the point of emergence in the direction of turbulent flow. Belin [1959] suggested that the radon concentration in water depends on the transit time of fluid through the radon-producing region and the extent of differential leaching of subterranean rocks by acid water. A general correlation between high radon content and periods of high rainfall was documented by Andrews and Wood [1972].…”

Section: Environmental Factorsmentioning

confidence: 99%

Radon anomalies and microearthquakes at Lake Jocassee, South Carolina

Talwani¹,

Moore²,

Chiang³

1980

J. Geophys. Res.

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Continuous low‐level seismic activity was found to occur at Lake Jocassee after the impoundment of the reservoir in 1975. In addition to monitoring seismic activity we began (in January 1976) a series of geochemical measurements in an effort to search for precursors to ML ∼ 2–2.5 events. Discrete water samples were collected from wells and a spring, and their radon content was determined by scintillation counting. These data were comparable to those obtained from a continuous Rn monitor in the spring using an ionization chamber. Soil Rn measurements in track etch cups were started in 1977. The results of the data collected so far indicate (1) that long‐term fluctuations occur in the radon concentrations in the spring water with a period of ∼44 weeks (the radon content being 50–100% lower in summer and fall), (2) that anomalous changes in the radon concentrations have occurred both before and after earthquakes, the timing of the anomaly being dependent on the distance of the epicenter to the radon sample site, (3) that both high and low anomalous radon values occur, and (4) that the soil randon method using track etch cups is useful in determining areas of high and low Rn concentration but not for a study of short‐term temporal changes.

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