<?xml version="1.0" encoding="UTF-8" ?><?xml-stylesheet type="text/xsl" href="xsl/oaitohtml.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-06-15T15:09:39Z</responseDate><request identifier="oai:doidb.wdc-terra.org:7812" metadataPrefix="oai_datacite" verb="GetRecord">http://doidb.wdc-terra.org/oaip/oai</request><GetRecord><record><header><identifier>oai:doidb.wdc-terra.org:7812</identifier><datestamp>2026-06-10T10:24:00Z</datestamp><setSpec>DOIDB</setSpec><setSpec>DOIDB.GFZ</setSpec></header><metadata><oai_datacite xmlns="http://schema.datacite.org/oai/oai-1.0/" xsi:schemaLocation="http://schema.datacite.org/oai/oai-1.0/ http://schema.datacite.org/oai/oai-1.0/oai.xsd"><isReferenceQuality>false</isReferenceQuality><schemaVersion>4</schemaVersion><datacentreSymbol>DOIDB.GFZ</datacentreSymbol><payload><resource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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   <identifier identifierType="DOI">10.5880/GFZ.2.6.2023.004</identifier>
   <creators>
      <creator>
         <creatorName nameType="Personal">Zang, Arno</creatorName>
         <givenName>Arno</givenName>
         <familyName>Zang</familyName>
         <nameIdentifier nameIdentifierScheme="ORCID">0000-0001-7670-5152</nameIdentifier>
         <affiliation>GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
         <affiliation>Institute of Earth Sciences, University of Potsdam, Germany</affiliation>
      </creator>
      <creator>
         <creatorName nameType="Personal">Niemz, Peter</creatorName>
         <givenName>Peter</givenName>
         <familyName>Niemz</familyName>
         <nameIdentifier nameIdentifierScheme="ORCID">0000-0002-0612-662X</nameIdentifier>
         <affiliation>University of Utah Seismograph Stations, Salt Lake City, UT, US</affiliation>
         <affiliation>GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </creator>
      <creator>
         <creatorName nameType="Personal">von Specht, Sebastian</creatorName>
         <givenName>Sebastian</givenName>
         <familyName>von Specht</familyName>
         <nameIdentifier nameIdentifierScheme="ORCID">0000-0003-3735-9562</nameIdentifier>
         <affiliation>Institute of Mathematics, University of Potsdam, Germany</affiliation>
      </creator>
      <creator>
         <creatorName nameType="Personal">Zimmermann, Günther</creatorName>
         <givenName>Günther</givenName>
         <familyName>Zimmermann</familyName>
         <affiliation>GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </creator>
      <creator>
         <creatorName nameType="Personal">Milkereit, Claus</creatorName>
         <givenName>Claus</givenName>
         <familyName>Milkereit</familyName>
         <affiliation>GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </creator>
      <creator>
         <creatorName nameType="Personal">Plenkers, Katrin</creatorName>
         <givenName>Katrin</givenName>
         <familyName>Plenkers</familyName>
         <affiliation>GmuG mbH, Bad Nauheim, Germany</affiliation>
      </creator>
      <creator>
         <creatorName nameType="Personal">Klee, Gerd</creatorName>
         <givenName>Gerd</givenName>
         <familyName>Klee</familyName>
         <affiliation>SolExperts GmbH, Bochum, Germany</affiliation>
      </creator>
   </creators>
   <titles>
      <title>Comprehensive data set of in-situ hydraulic stimulation experiments for geothermal purposes at the Äspö Hard Rock Laboratory (Sweden)</title>
   </titles>
   <publisher>GFZ Data Services</publisher>
   <publicationYear>2023</publicationYear>
   <subjects>
      <subject>hydraulic experiments</subject>
      <subject>broadband seismic data</subject>
      <subject>acoustic emissions</subject>
      <subject>Äspö Hard Rock Laboratory</subject>
      <subject>borehole images</subject>
      <subject subjectScheme="NASA/GCMD Earth Science Keywords">EARTH SCIENCE &gt; SOLID EARTH</subject>
      <subject subjectScheme="NASA/GCMD Earth Science Keywords">EARTH SCIENCE &gt; SOLID EARTH &gt; ROCKS/MINERALS/CRYSTALS</subject>
      <subject subjectScheme="GCMD Platforms">In Situ Land-based Platforms &gt; GEOPHYSICAL STATIONS/NETWORKS &gt; SEISMOLOGICAL STATIONS</subject>
   </subjects>
   <contributors>
      <contributor contributorType="ContactPerson">
         <contributorName>Zang, Arno</contributorName>
         <affiliation>GFZ German Research Centre for Geosciences, Potsdam, Germany</affiliation>
      </contributor>
   </contributors>
   <resourceType resourceTypeGeneral="Dataset">Dataset</resourceType>
   <relatedIdentifiers>
      <relatedIdentifier relatedIdentifierType="DOI" relationType="IsSupplementTo">10.5194/essd-2023-170</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="URL" relationType="Cites">https://www.skb.com/publication/1639289/P-08-37.pdf</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="DOI" relationType="Cites">10.1029/2021JB023057</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="DOI" relationType="Cites">10.1007/978-3-030-67936-1_16</relatedIdentifier>
      <relatedIdentifier relatedIdentifierType="DOI" relationType="Cites">10.1007/s00603-018-1499-9</relatedIdentifier>
   </relatedIdentifiers>
   <sizes/>
   <formats/>
   <rightsList>
      <rights rightsURI="http://creativecommons.org/licenses/by/4.0/">CC BY 4.0</rights>
   </rightsList>
   <descriptions>
      <description descriptionType="Abstract">This data set contains measurements of an underground hydraulic fracture experiment at Äspö Hard Rock Laboratory in May and June 2015. The experiment tested various injection schemes for rock fracture stimulation and monitored the resulting seismicity. The primary purpose of the experiment is to identify injection schemes that provide rock fracturing while reducing seismicity or at least mitigate larger seismic events. In total, six tests with three different injection schemes were performed in various igneous rock types. Both the injection process and the accompanied seismicity were monitored. For injection monitoring, the water flow and pressure are provided and additional tests for rock permeability.     <br/>
         <br/>
The seismicity was monitored in both triggered and continuous mode during the tests by high-resolution acoustic emission sensors, accelerometers and broadband seismometers. Both waveform data and seismicity catalogs are provided.   <br/>
      </description>
   </descriptions>
   <geoLocations>
      <geoLocation>
         <geoLocationPlace>Äspö Hard Rock Laboratory, LÅNGÖ, Figeholm, Schweden</geoLocationPlace>
      </geoLocation>
   </geoLocations>
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