Articles | Volume 15, issue 24
Research article
21 Dec 2018
Research article |  | 21 Dec 2018

Hydrothermal alteration of aragonitic biocarbonates: assessment of micro- and nanostructural dissolution–reprecipitation and constraints of diagenetic overprint from quantitative statistical grain-area analysis

Laura A. Casella, Sixin He, Erika Griesshaber, Lourdes Fernández-Díaz, Martina Greiner, Elizabeth M. Harper, Daniel J. Jackson, Andreas Ziegler, Vasileios Mavromatis, Martin Dietzel, Anton Eisenhauer, Sabino Veintemillas-Verdaguer, Uwe Brand, and Wolfgang W. Schmahl


Total article views: 2,700 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
1,666 845 189 2,700 73 55
  • HTML: 1,666
  • PDF: 845
  • XML: 189
  • Total: 2,700
  • BibTeX: 73
  • EndNote: 55
Views and downloads (calculated since 10 Jul 2018)
Cumulative views and downloads (calculated since 10 Jul 2018)

Viewed (geographical distribution)

Total article views: 2,700 (including HTML, PDF, and XML) Thereof 2,162 with geography defined and 538 with unknown origin.
Country # Views %
  • 1


Latest update: 02 Oct 2023
Short summary
Biogenic carbonates record past environmental conditions. Fossil shell chemistry and microstructure change as metastable biogenic carbonates are replaced by inorganic calcite. Simulated diagenetic alteration at 175 °C of different shell microstructures showed that (nacreous) shell aragonite and calcite were partially replaced by coarse inorganic calcite crystals due to dissolution–reprecipitation reactions. EBSD maps allowed for qualitative assessment of the degree of diagenetic overprint.
Final-revised paper