Articles | Volume 39, issue 2
https://doi.org/10.5194/jm-39-169-2020
https://doi.org/10.5194/jm-39-169-2020
Research article
 | 
09 Oct 2020
Research article |  | 09 Oct 2020

Liberating microfossils from indurated carbonates: comparison of three disaggregation methods

Charlotte Beasley, Daniel B. Parvaz, Laura Cotton, and Kate Littler

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Cited articles

Abdelghany, O.: Biostratigraphy (Turborotalia cunialensis/Cribrohantkenina inflata Concurrent-Range Zone, P16) of the Late Eocene Dammam Formation, west of the Northern Oman Mountains, Micropaleontology, 48, 209–221, 2002. 
Abdelghany, O. and Abu Saima, M. M.: Stratigraphy of the Early Paleogene Muthaymimah Formation exposed on the western flank of the Northern Oman Mountains, Hist. Biol., 25, 629–642, https://doi.org/10.1080/08912963.2012.729830, 2013. 
Andres, U., Jirestig, J., and Timoshkin, I.: Liberation of minerals by high-voltage electrical pulses, Powder Technol., 104, 37–49, https://doi.org/10.1016/S0032-5910(99)00024-8, 1999. 
Andres, U., Timoshkin, I., Jirestig, J., and Stallknecht, H.: Liberation of valuable inclusions in ores and slags by electrical pulses, Powder Technol., 114, 40–50, https://doi.org/10.1016/S0032-5910(00)00260-6, 2001. 
Barnet, J. S. K., Littler, K., Westerhold, T., Kroon, D., Leng, M. J., Bailey, I., Röhl, U., and Zachos, J. C.: A high-fidelity benthic stable isotope record of late Cretaceous–early Eocene climate change and carbon-cycling, Paleoceanogr. Paleocl., 34, 1–20, https://doi.org/10.1029/2019PA003556, 2019. 
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Short summary
We compared three methods of breaking apart well-cemented carbonate rocks in order to obtain liberated fossiliferous material. The first two methods are traditional and the third is novel to this field. The novel technique (fragmentation using electric pulses, SELFRAG) proved to be the most efficient and effective at liberating microfossil material from surrounding rock. We suggest best practice for using this technique and further materials in which it could prove successful in future.