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            <mods:shelfLocator>2002 J 186</mods:shelfLocator>
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          <mods:titleInfo xml:lang="de" xlink:type="simple">
            <mods:title>Oberflächenquantifizierung an Schwarzpeliten unterschiedlicher Verwitterungsgrade</mods:title>
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            <mods:namePart type="family">Fischer</mods:namePart>
            <mods:namePart type="given">Cornelius</mods:namePart>
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              <mods:placeTerm type="text">Jena</mods:placeTerm>
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          <mods:abstract altRepGroup="d6-ac29-bd70d569987d" xml:lang="de" contentType="text/xml" altFormat="data:text/xml;charset=UTF-8;base64,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" xlink:type="simple"/>
          <mods:abstract altRepGroup="d6-ac29-bd70d569987d" xml:lang="de" xlink:type="simple">Die potentiell reaktive Oberfläche von Schwarzpeliten (hier: Alaunschiefer) wurde quantitativ abgeschätzt durch eine - in der räumlichen Auflösung skalenübergreifende - Analyse der inneren und äußeren Gesteinsoberfläche. Insbesondere wurden die Flächenanteile von organischem Material (OM) im Schwarzpelit und ihre Änderungen bei oxidativen Bleichungsprozessen betrachtet. Bleichung verursacht eine Verringerung des OM-Gehaltes im Alaunschiefer von ursprünglich 6-23 Gew. % auf weniger als etwa 1 Gew. %. Gleichzeitig verringert sich die innere Gesteinsoberfläche um mehrere m2/g. The reactive surface area of black shales during weathering was quantitatively assessed by scale spanning measurements of the internal and external rock surface area. This assessment focusses on organic matter (OM) rich alum shale surface changes caused by oxidative bleaching processes. Bleaching causes the decrease of OM in alum shale from primary 6-23 wt. % down to less than 1 wt. %. Synchronously, the decline of internal rock surface area of several m2/g occurs due to the deletion of microporous and mesoporous OM.</mods:abstract>
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          <mods:abstract altRepGroup="89-9f47-d48b49f3459b" xml:lang="en" xlink:type="simple">The reactive surface area of black shales during weathering was quantitatively assessed by scale spanning measurements of the internal and external rock surface area. This assessment focusses on organic matter (OM) rich alum shale surface changes caused by oxidative bleaching processes. Bleaching causes the decrease of OM in alum shale from primary 6-23 wt. % down to less than 1 wt. %. Synchronously, the decline of internal rock surface area of several m2/g occurs due to the deletion of microporous and mesoporous OM.</mods:abstract>
          <mods:subject xlink:type="simple">
            <mods:topic>Thüringen Süd</mods:topic>
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          <mods:subject xlink:type="simple">
            <mods:topic>Thüringen Ost</mods:topic>
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            <mods:topic authorityURI="http://d-nb.info/gnd/" valueURI="http://d-nb.info/gnd/4181434-4" authority="gnd">Silur</mods:topic>
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            <mods:topic>Gesteinsoberfläche</mods:topic>
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            <mods:topic authorityURI="http://d-nb.info/gnd/" valueURI="http://d-nb.info/gnd/4214304-4" authority="gnd">Alaunschiefer</mods:topic>
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            <mods:topic authorityURI="http://d-nb.info/gnd/" valueURI="http://d-nb.info/gnd/4238806-5" authority="gnd">Chemische Verwitterung</mods:topic>
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          <mods:physicalDescription>
            <mods:extent>188 Seiten</mods:extent>
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          <mods:note type="thesis" xlink:type="simple">Dissertation, Friedrich-Schiller-Universität Jena, 2002</mods:note>
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