<resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4" xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.1/metadata.xsd"><identifier identifierType="DOI">10.26165/JUELICH-DATA/7Q3NQL</identifier><creators><creator><creatorName>Van Loon, L. R.</creatorName><nameIdentifier nameIdentifierScheme="ScopusID">7006194272</nameIdentifier><affiliation>Labor für Endlagersicherheit, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland</affiliation></creator><creator><creatorName>Glaus, M. A.</creatorName><nameIdentifier nameIdentifierScheme="ScopusID">6701782158</nameIdentifier><affiliation>Labor für Endlagersicherheit, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland</affiliation></creator><creator><creatorName nameType="Personal">Brandt, Felix</creatorName><givenName>Felix</givenName><familyName>Brandt</familyName><nameIdentifier nameIdentifierScheme="ScopusID">36848708100</nameIdentifier><affiliation>Institute of Fusion Energy and Nuclear Waste Management  – Nuclear Waste Management (IFN-2)</affiliation></creator><creator><creatorName nameType="Personal">Klinkenberg, Martina</creatorName><givenName>Martina</givenName><familyName>Klinkenberg</familyName><nameIdentifier nameIdentifierScheme="ScopusID">14064905700</nameIdentifier><affiliation>Institute of Fusion Energy and Nuclear Waste Management  – Nuclear Waste Management (IFN-2)</affiliation></creator></creators><titles><title>Experimental data for: Laboratory diffusion experiments with HTO, D2O, H218O, 36Cl-, Br-, I-, 79SeO42-, 22Na+, 85Sr2+, 133Ba2+ and 226Ra2+ in Opalinus Clay parallel to the bedding plane: experimental results and modelling</title></titles><publisher>Jülich DATA</publisher><publicationYear>2025</publicationYear><subjects><subject>Earth and Environmental Sciences</subject></subjects><contributors><contributor contributorType="ContactPerson"><contributorName nameType="Personal">Klinkenberg, Martina</contributorName><givenName>Martina</givenName><familyName>Klinkenberg</familyName><affiliation>Institute of Fusion Energy and Nuclear Waste Management  – Nuclear Waste Management (IFN-2)</affiliation></contributor></contributors><dates><date dateType="Submitted">2025-09-16</date><date dateType="Updated">2026-03-13</date></dates><resourceType resourceTypeGeneral="Dataset"/><sizes><size>461077</size><size>334115</size><size>618159</size><size>647044</size><size>446823</size><size>514987</size><size>124762</size><size>2462038</size></sizes><formats><format>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</format><format>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</format><format>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</format><format>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</format><format>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</format><format>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</format><format>application/vnd.openxmlformats-officedocument.spreadsheetml.sheet</format><format>application/pdf</format></formats><version>2.0</version><rightsList><rights rightsURI="info:eu-repo/semantics/openAccess"/><rights/></rightsList><descriptions><description descriptionType="Abstract">The diffusion of a suite of tracers (stable isotope species and radiotracers) was studied in Opalinus Clay (OPA) samples originating from two different boreholes at the Mont Terri Underground Research Laboratory in Switzerland (BDR-2 and BMA-A1). This data publication includes Excel tables containing the raw data for the diffusion experiments presented and the corresponding modelling performed, as well as a PDF document with additional information and data that are not included in the main publication.</description></descriptions><geoLocations/></resource>