Release of uranium from rock matrix: A record of glacial meltwater intrusions?

Kari Rasilainen (Corresponding Author), Juhani Suksi, Timo Ruskeeniemi, Petteri Pitkänen, Antti Poteri

Research output: Contribution to journalArticleScientificpeer-review

8 Citations (Scopus)

Abstract

Uranium release observed in a rock matrix around water-carrying fractures was studied using U-series disequilibrium (USD) modelling and mass balance calculations. Several release scenarios were tested, with specific attention to the glacial aspects. The release appears to have occurred in two or three violent episodes during the last 300 ky. A release after the last glaciation can be excluded on mass flow grounds. Continuous release for more than 300 ky can be excluded on radioactive disequilibrium grounds. Repeated inflows of oxic glacial meltwater seem to have triggered the release episodes.
Original languageEnglish
Pages (from-to)235-246
Number of pages12
JournalJournal of Contaminant Hydrology
Volume61
Issue number1-4
DOIs
Publication statusPublished - 2003
MoE publication typeA1 Journal article-refereed

Fingerprint

Uranium
meltwater
disequilibrium
uranium
Rocks
matrix
Water
last glaciation
rock
mass balance
inflow
modeling
water
calculation

Keywords

  • uranium
  • uranium migration
  • U-series disequilibrium
  • glaciation
  • nuclear waste disposal
  • nuclear waste management

Cite this

Rasilainen, Kari ; Suksi, Juhani ; Ruskeeniemi, Timo ; Pitkänen, Petteri ; Poteri, Antti. / Release of uranium from rock matrix : A record of glacial meltwater intrusions?. In: Journal of Contaminant Hydrology. 2003 ; Vol. 61, No. 1-4. pp. 235-246.
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Release of uranium from rock matrix : A record of glacial meltwater intrusions? / Rasilainen, Kari (Corresponding Author); Suksi, Juhani; Ruskeeniemi, Timo; Pitkänen, Petteri; Poteri, Antti.

In: Journal of Contaminant Hydrology, Vol. 61, No. 1-4, 2003, p. 235-246.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Poteri, Antti

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KW - U-series disequilibrium

KW - glaciation

KW - nuclear waste disposal

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