Download
s00531-021-02022-y.pdf 4,49MB
WeightNameValue
1000 Titel
  • Clay mineral formation in Permian rocks of a geothermal borehole at Northern Upper Rhine Graben, Germany
1000 Autor/in
  1. Lan, Nguyen-Thanh |
  2. Mählmann, Rafael Ferreiro |
  3. Hoang-Minh, Thao |
  4. Petschick, Rainer |
  5. Reischmann, Thomas |
  6. Nesbor, Heinz-Dieter |
  7. Ruttmann, Myriam |
  8. Fritsche, Johann-Gerhard |
1000 Erscheinungsjahr 2021
1000 Publikationstyp
  1. Artikel |
1000 Online veröffentlicht
  • 2021-03-27
1000 Erschienen in
1000 Quellenangabe
  • 110(4):1415-1438
1000 Copyrightjahr
  • 2021
1000 Lizenz
1000 Verlagsversion
  • https://doi.org/10.1007/s00531-021-02022-y |
1000 Publikationsstatus
1000 Sprache der Publikation
1000 Abstract/Summary
  • <jats:title>Abstract</jats:title><jats:p>Hydrothermally altered rhyolite rocks in the Permian Donnersberg Formation of a geothermal borehole in the Northern Upper Rhine Graben (Germany) were investigated to find out answers for the low hydraulic conductivity of the rocks. The composition of clay minerals and the temperature of smectite–illite transformation were carried out using X-ray diffraction, X-ray fluorescence, transmission electron microscopy, Fourier transform infrared spectroscopy, and polarized-light microscopy analyses. Clay mineral (CM) composition includes illite/muscovite (1<jats:italic>M</jats:italic>and 2<jats:italic>M</jats:italic><jats:sub>1</jats:sub>polytypes), illite–smectite interstratifications (IS-ml), smectite, and chlorite; and non-clay minerals such as quartz, feldspars, epidote, calcite, dolomite, and hematite were detected. The 2<jats:italic>M</jats:italic><jats:sub>1</jats:sub>-polytype mica might be the only primary sheet silicates from the parent rocks, while the others occur as authigenic neo-formed CMs under heat flow and geothermal gradient. The development of CMs indicates different mechanisms of illitization and smectitization. Based on the texture, morphology, structure/polytype, and chemistry of rocks and minerals, in particular CMs, the study grouped the CM formation into three transformation processes: smectitization during magma cooling and possible contact metamorphisms with decreasing and low temperature, smectite illitization controlled by burial diagenesis and hydrothermal alteration, and illite smectitization followed exhumation and Cenozoic subsidence with decreasing temperature. The rhyolites were altered to all of the orders IS-R0, IS-R1, and IS-R3 by the dissolution-precipitation and layer-to-layer mechanisms. The first one supported small xenomorphic plates and flakes of 1<jats:italic>M</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>, elongated particles of 1<jats:italic>M</jats:italic>, and pseudo-hexagonal forms of 2<jats:italic>M</jats:italic><jats:sub>1</jats:sub>. The second one could lead to the platy particles of 1<jats:italic>M</jats:italic><jats:sub><jats:italic>d</jats:italic></jats:sub>and 2<jats:italic>M</jats:italic><jats:sub>1</jats:sub>polytypes. The dominant temperature range for the transformation in the area has been 140–170 °C– ~ 230 °C.</jats:p>
1000 Sacherschließung
lokal Clay mineral
lokal Upper Rhine Graben
lokal Smectite illitization
lokal Geothermal borehole
lokal Original Paper
lokal Thermal gradient
lokal Donnersberg Formation
1000 Liste der Beteiligten
  1. https://orcid.org/0000-0003-1365-5615|https://frl.publisso.de/adhoc/uri/TcOkaGxtYW5uLCBSYWZhZWwgRmVycmVpcm8=|https://frl.publisso.de/adhoc/uri/SG9hbmctTWluaCwgVGhhbw==|https://frl.publisso.de/adhoc/uri/UGV0c2NoaWNrLCBSYWluZXI=|https://frl.publisso.de/adhoc/uri/UmVpc2NobWFubiwgVGhvbWFz|https://frl.publisso.de/adhoc/uri/TmVzYm9yLCBIZWluei1EaWV0ZXI=|https://frl.publisso.de/adhoc/uri/UnV0dG1hbm4sIE15cmlhbQ==|https://frl.publisso.de/adhoc/uri/RnJpdHNjaGUsIEpvaGFubi1HZXJoYXJk
1000 Hinweis
  • DeepGreen-ID: c4284f43f3ac4f3f8cfbf74c57df2878 ; metadata provieded by: DeepGreen (https://www.oa-deepgreen.de/api/v1/), LIVIVO search scope life sciences (http://z3950.zbmed.de:6210/livivo), Crossref Unified Resource API (https://api.crossref.org/swagger-ui/index.html), to.science.api (https://frl.publisso.de/), ZDB JSON-API (beta) (https://zeitschriftendatenbank.de/api/), lobid - Dateninfrastruktur für Bibliotheken (https://lobid.org/resources/search)
1000 Label
1000 Dateien
1000 Objektart article
1000 Beschrieben durch
1000 @id frl:6446629.rdf
1000 Erstellt am 2023-04-28T13:42:03.035+0200
1000 Erstellt von 322
1000 beschreibt frl:6446629
1000 Zuletzt bearbeitet 2023-10-20T18:39:24.269+0200
1000 Objekt bearb. Fri Oct 20 18:39:24 CEST 2023
1000 Vgl. frl:6446629
1000 Oai Id
  1. oai:frl.publisso.de:frl:6446629 |
1000 Sichtbarkeit Metadaten public
1000 Sichtbarkeit Daten public
1000 Gegenstand von

View source