Origin and evolution of reactive and noble gases dissolved in matrix pore water

Eichinger, Florian; Waber, Niklaus; Smellie, J.A.T. (2013). Origin and evolution of reactive and noble gases dissolved in matrix pore water. In: International Atomic, Energy Agency (ed.) Isotopes in Hydrology, Marine Ecosystems and Climate Change Studies - Proceedings of the International Symposium Held in Monaco, 27 March - 1 April 2011 (Bd. 2). Proceedings series (pp. 99-107). Wien: IAEA

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Reactive and noble gases dissolved in matrix pore water of low permeable crystalline bedrock were successfully extracted and characterized for the fist time based on drillcore samples from the Olkiluoto investigation site (SW Finland). Interaction between matrix pore water and fracture groundwater occurs predominately by diffusion. Changes in the chemical and isotopic composition of gases dissolved in fracture groundwater are transmitted and preserved in the pore water. Absolute concentrations, their ratios and the stable carbon isotope signature of hydrocarbon gases dissolved in pore water give valuable indications about the evolution of these gases in the nearby-flowing fracture groundwaters. Inert noble gases dissolved in matrix pore water and their isotopes combined with their in-situ production and accumulation rates deliver information about the residence time of pore water.

Item Type:

Book Section (Book Chapter)

Division/Institute:

08 Faculty of Science > Institute of Geological Sciences
08 Faculty of Science > Institute of Geological Sciences > Rock-Water Interaction

UniBE Contributor:

Eichinger, Florian and Waber, Niklaus

Subjects:

500 Science > 550 Earth sciences & geology

ISSN:

0074–1884

ISBN:

978–92–0–135610–9

Series:

Proceedings series

Publisher:

IAEA

Language:

English

Submitter:

Niklaus Waber

Date Deposited:

11 Aug 2014 08:56

Last Modified:

06 Jun 2017 16:37

Related URLs:

BORIS DOI:

10.7892/boris.49896

URI:

https://boris.unibe.ch/id/eprint/49896

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