Helium in deep circulating groundwater in the Great Hungarian Plain: Flow dynamics and crustal and mantle helium fluxes

Stute, M.; Sonntag, Christian; Deák, József; Schlosser, Peter

doi:10.1016/0016-7037(92)90329-h

Cited by 174 publications

(137 citation statements)

References 32 publications

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“…He concentrations often increase with groundwater age due to accumulation of radiogenic He produced by ␣-decay of U and Th series nuclides in crustal minerals (e.g., Andrews and Lee, 1979;Torgersen and Clarke, 1985;Stute et al, 1992b;Solomon et al, 1996). There are three potential sources of radiogenic He in groundwater: i) in situ production within the 811 Noble gas paleotemperature record from the Aquia Aquifer aquifer matrix; ii) release of stored He from fresh sediments; and iii) a flux from adjacent layers or even the whole underlying crust.…”

Section: He-agesmentioning

confidence: 99%

A paleotemperature record derived from dissolved noble gases in groundwater of the Aquia Aquifer (Maryland, USA)

Aeschbach–Hertig

Stute

Clark

et al. 2002

Geochimica et Cosmochimica Acta

113

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Section: He-agesmentioning

confidence: 99%

A paleotemperature record derived from dissolved noble gases in groundwater of the Aquia Aquifer (Maryland, USA)

Aeschbach–Hertig

Stute

Clark

et al. 2002

Geochimica et Cosmochimica Acta

113

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“…Noble gases have also been used extensively in groundwater studies to constrain paleotemperatures (Stute et al, 1992(Stute et al, , 1995 and groundwater infiltration and recharge (Beyerle et al, 1999;Manning and Solomon, 2003;Zhou et al, 2005). Measurements of Ar and Kr isotopes in ice cores can lead to estimation of firn thickness and temperature (Craig and Wiens, 1996;Severinghaus et al, 2001Severinghaus et al, , 2003.…”

Section: Introductionmentioning

confidence: 99%

A determination of air-sea gas exchange and upper ocean biological production from five noble gases and tritiugenic helium-3

Stanley¹

2007

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The five noble gases (helium, neon, argon, krypton, and xenon) are biologically and chemically inert, making them ideal oceanographic tracers. Additionally, the noble gases have a wide range of solubilities and molecular diffusivities, and thus respond differently to physical forcing. Tritium, an isotope of hydrogen, is useful in tandem with its daughter helium-3 as a tracer for water mass ages. In this thesis, a fourteen month time-series of the five noble gases, helium-3 and tritium was measured at the Bermuda Atlantic Time-series Study (BATS) site. The time-series of five noble gases was used to develop a parameterization of air-sea gas exchange for oligotrophic waters and wind speeds between 0 and 13 m s −1 that explicitly includes bubble processes and that constrains diffusive gas exchange to ± 6% and complete and partial air injection processes to ± 15%. Additionally, the parameterization is based on weeks to seasonal time scales, matching the time scales of many relevant biogeochemical cycles. The time-series of helium isotopes, tritium, argon, and oxygen was used to constrain upper ocean biological production. Specifically, the helium flux gauge technique was used to estimate new production, apparent oxygen utilization rates were used to quantify export production, and euphotic zone seasonal cycles of oxygen and argon were used to determine net community production. The concurrent use of these three methods allows examination of the relationship between the types of production and begins to address a number of apparent inconsistencies in the elemental budgets of carbon, oxygen, and nitrogen.

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“…A portion of this radiogenic 4 He is transferred to Earth's surface, resides in the atmosphere for an average of 10 6 years [Mamyrin and Tolstikhin, 1984], and then ultimately escapes to space. The subsurface production often results in groundwater concentrations of 4 He that are several orders of magnitude greater than water in equilibrium with the atmosphere [Davis and DeWiest, 1966;Andrews and Lee, 1979;Marine, 1979;Torgersen, 1980;Stute et al, 1992]. The 4 He content of groundwater is a result of the 4 He rad release (mass transport) rate and the elapsed time since the water entered the saturated zone.…”

Section: Introductionmentioning

confidence: 99%

“…If the release occurs at the rate of U and Th series decay, then measurable amounts of 4 He will accumulate after about 1000 years, and theoretically continue for millions of years. He-4 has thus traditionally been used as a groundwater tracer over a long timescale [Andrews and Lee, 1979;Marine, 1979;Torgersen, 1980;Andrews et al, 1982;Torgersen and Ivey, 1985;Balderer and Lehmann, 1989;Bottomley et al, 1990;Ballentine et al, 1991;Mazor and Bosch, 1991;Stute et al, 1992;Marty et al, 1993]. However, concentrations of 4 He in groundwater that are larger than can be explained by U and Th decay and the water age have been well documented [e.g., Torgersen and Ivey, 1985;Solomon et al, 1996] and previously interpreted as the result of 4 He diffusion from older underlying units (external source).…”

Section: Introductionmentioning

confidence: 99%

Radiogenic helium in shallow groundwater within a clay till, southwestern Ontario

Sheldon

Solomon

Poreda

et al. 2003

Water Resources Research

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[1] Profiles of 4 He in pore water were measured in clay aquitards in SW Ontario. The 4 He distributions are consistent with groundwater velocities that are <6 mm yr À1 , and thus diffusion is the dominant transport mechanism for 4 He. Modeling indicates that the effective diffusion coefficient for 4 He is 6.3 ± 1.6 Â 10 À6 cm 2 s À1 . Furthermore, the profiles are consistent with the internal release of 4 He from aquitard sediments at a rate of 0.03-0.13 mcc(STP) kg À1 yr À1 . These rates are also consistent with laboratory release experiments and, on average, are 600 times greater than the production of 4 He from U/Th decay. Modeling and the ratio of 21 Ne to 4 He within the sediments indicate that although the aquitards were deposited about 13 kA BP, the sediments released >70% of initial 4 He for 50 to 60 kA prior to incorporation into the till.

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Helium in deep circulating groundwater in the Great Hungarian Plain: Flow dynamics and crustal and mantle helium fluxes

Cited by 174 publications

References 32 publications

A paleotemperature record derived from dissolved noble gases in groundwater of the Aquia Aquifer (Maryland, USA)

A paleotemperature record derived from dissolved noble gases in groundwater of the Aquia Aquifer (Maryland, USA)

A determination of air-sea gas exchange and upper ocean biological production from five noble gases and tritiugenic helium-3

Radiogenic helium in shallow groundwater within a clay till, southwestern Ontario

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