| |  Online-Ressource |
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| Verfasst von: | Purtschert, Roland [VerfasserIn]  |
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| | Love, A. J. [VerfasserIn] |
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| | Jiang, W. [VerfasserIn] |
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| | Lu, Z. -T. [VerfasserIn] |
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| | Yang, G. -M. [VerfasserIn] |
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| | Fulton, S. [VerfasserIn] |
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| | Wohling, D. [VerfasserIn] |
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| | Shand, P. [VerfasserIn] |
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| | Aeschbach, Werner [VerfasserIn] |
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| | Bröder, L. [VerfasserIn] |
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| | Müller, P. [VerfasserIn] |
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| | Tosaki, Y. [VerfasserIn] |
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| Titel: | Residence times of groundwater along a flow path in the Great Artesian Basin determined by 81Kr, 36Cl and 4He |
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| Titelzusatz: | Implications for palaeo hydrogeology |
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| Verf.angabe: | R. Purtschert, A.J. Love, W. Jiang, Z.-T. Lu, G.-M. Yang, S. Fulton, D. Wohling, P. Shand, W. Aeschbach, L. Bröder, P. Müller, Y. Tosaki |
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| E-Jahr: | 2023 |
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| Jahr: | 10 February 2023 |
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| Umfang: | 15 S. |
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| Fussnoten: | Online verfügbar 5 November 2022, Artikelversion 18 November 2022 ; Gesehen am 22.03.2023 ; Im Titel sind die Zahlen 81, 36 und 4 hochgestellt |
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| Titel Quelle: | Enthalten in: The science of the total environment |
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| Ort Quelle: | Amsterdam [u.a.] : Elsevier Science, 1972 |
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| Jahr Quelle: | 2023 |
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| Band/Heft Quelle: | 859(2023), 1 vom: Feb., Artikel-ID 159886, Seite 1-15 |
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| ISSN Quelle: | 1879-1026 |
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| Abstract: | Understanding the age distribution of groundwater can provide information on both the recharge history as well as the geochemical evolution of groundwater flow systems. Of the few candidates available that can be used to date old groundwater, 81Kr shows the most promise because its input function is constant through time and there are less sources and sinks to complicate the dating procedure in comparison to traditional tracers such as 36Cl and 4He. In this paper we use 81Kr in a large groundwater basin to obtain a better understanding of the residence time distribution of an unconfined-confined aquifer system. A suite of environmental tracers along a groundwater flow path in the south-west Great Artesian Basin of Australia have been sampled. All age tracers (85Kr, 39Ar 14C, 81Kr, 36Cl and 4He) display a consistent increase in groundwater age with distance from the recharge area indicating the presence of a connected flow path. Assuming that 81Kr is the most accurate dating technique the 36Cl/Cl systematics was unravelled to reveal information on recharge mechanism and chloride concentration at the time of recharge. Current-day recharge occurs via ephemeral river recharge beneath the Finke River, while diffuse recharge is minor in the young groundwaters. Towards the end of the transect the influence of ephemeral recharge is less while diffuse recharge and the initial chloride concentration at recharge were higher. |
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| DOI: | doi:10.1016/j.scitotenv.2022.159886 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1016/j.scitotenv.2022.159886 |
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| | Volltext: https://www.sciencedirect.com/science/article/pii/S0048969722069868 |
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| | DOI: https://doi.org/10.1016/j.scitotenv.2022.159886 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | Dating |
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| | Great Artesian Basin |
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| | Groundwater |
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| | Palaeoclimate |
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| | Radio-Noblegas |
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| | Recharge conditions |
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| K10plus-PPN: | 1839769637 |
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| Verknüpfungen: | → Zeitschrift |
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Residence times of groundwater along a flow path in the Great Artesian Basin determined by 81Kr, 36Cl and 4He / Purtschert, Roland [VerfasserIn]; 10 February 2023 (Online-Ressource)
