Publication detail

High resolution computed tomography for pores and bioerosion of Uvigerina sp.: Advances and limits

JAQUES, V. KERKHOFF, M. HOLCOVÁ, K. ŠALPLACHTA, J. ZIKMUND, T. KAISER, J.

Original Title

High resolution computed tomography for pores and bioerosion of Uvigerina sp.: Advances and limits

Type

abstract

Language

English

Original Abstract

Foraminifera are important proxies for paleo-environmental reconstruction. They are visually determined with a light microscope (LM) and a scanning electron microscope (SEM). Both methods are non-destructive 2D surface analyses. SEM resolution offers very fine observation of the pores and microboring. Pores can be used for the oxygen content analysis coupled with geochemical analysis. The bioerosion from other organisms like fungi and cyanobacteria are visualised as boreholes on the surface and are used for the living environment interpretation. Semi-destructive or destructive preparations are needed for internal evaluation such as test dissolution or cutting. The 2D analysis also lacks the relational of 3D observations. The use of laboratory high resolution computed tomography (HRCT) for the 3D internal and external evaluation of foraminifera, of their pores and bioerosion, gives a better understanding of the distribution and relation of the pores to each other and to the morphology. This non-destructive technology is relatively young and its capabilities are quickly evolving in higher resolution, better contrast and therefore more precise datasets. Its capabilities coupled with easy access offer the best chance for quick and complete morphological evaluation. In our study, we measured 3 Uvigerina sp. of 3 sizes and compared the visibility of the determination criteria as well as their pores and bioerosion. We observed that the determination of the species was possible from all three sizes. The smaller features from all specimens could be analysed and measured hence specific post-processing and thorough segmentation.

Keywords

High resolution, Computed tomography, Foraminifera, Bioerosion, Pores

Authors

JAQUES, V.; KERKHOFF, M.; HOLCOVÁ, K.; ŠALPLACHTA, J.; ZIKMUND, T.; KAISER, J.

Released

9. 12. 2021

ISBN

978-84-09-36657-6

Book

3rd Palaeontological Virtual Congress Book of Abstracts Palaeontology in the virtual era

Pages from

34

Pages to

34

Pages count

1

URL

https://www.researchgate.net/publication/357528988_3rd_Palaeontological_Virtual_Congress_Book_of_Abstracts_Palaeontology_in_the_virtual_era

BibTex

@misc{BUT182507,
  author="Victory {Jaques} and Marta {Kerkhoff} and Katarína {Holcová} and Jakub {Šalplachta} and Tomáš {Zikmund} and Jozef {Kaiser}",
  title="High resolution computed tomography for pores and bioerosion of Uvigerina sp.: Advances and limits",
  booktitle="3rd Palaeontological Virtual Congress
Book of Abstracts
Palaeontology in the virtual era",
  year="2021",
  pages="1",
  isbn="978-84-09-36657-6",
  url="https://www.researchgate.net/publication/357528988_3rd_Palaeontological_Virtual_Congress_Book_of_Abstracts_Palaeontology_in_the_virtual_era",
  note="abstract"
}