Liberating microfossils from indurated carbonates: comparison of three disaggregation methods
Three disaggregation methods, i.e. Calgon, acetic acid and electric pulse fragmentation (EPF), have been applied to a range of heavily lithified, carbonate-rich sedimentary rock samples of Paleogene age. Samples are predominantly from the carbonate-rich, shallow water domain (500 µm, suggesting this...
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Veröffentlicht in: | Journal of micropalaeontology 2020-10, Vol.39 (2), p.169-181 |
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Sprache: | eng |
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Zusammenfassung: | Three disaggregation methods, i.e. Calgon, acetic acid and electric
pulse fragmentation (EPF), have been applied to a range of heavily
lithified, carbonate-rich sedimentary rock samples of Paleogene age. Samples
are predominantly from the carbonate-rich, shallow water domain (500 µm, suggesting this
technique may be more appropriate for liberating larger microfossils (e.g.
LFs); however, we discuss nuances to the method that would allow for more
effective recovery of smaller microfossil specimens. The more traditional
acetic acid method was also able to disaggregate a number of the samples;
however, preservation of the LF was compromised. We suggest a best-practice
methodology for implementing EPF in micropalaeontological studies. |
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ISSN: | 2041-4978 0262-821X 2041-4978 |
DOI: | 10.5194/jm-39-169-2020 |