Bioerosion area measurements over time in a controlled experimental setting

This dataset, provided as supplementary material, documents the dissolution susceptibility of Globigerinoides ruber (lumping G. ruber albus and G. elongatus) tests in relation to bioerosion drill holes. Sixty foraminiferal tests were extracted from a sample at 131 cm depth (20.8 ± 1.2 ka BP) in Core SAT-048A (29º11'S, 47º15'W, 1,542 mbsl). Core SAT-048A was collected from the slope of the Pelotas Basin (south brazilian continental margin) and donatd by the Brazilian National Petroleum Agency (ANP). For sample preparation see Frozza et al., 2020. Specimens were subjected to a dissolution experiment using a buffered acetic acid solution (pH 6.6). The dataset categorizes specimens into groups based on bioerosion levels, ranging from no drill holes (control) to four drill holes, to assess the impact of bioerosion on test preservation. Dissolution progression was monitored at hourly intervals until specimen destruction, and preservation was quantified using Absolute and Relative Preservation Scores (APS and RPS), as well as the two-dimensional projected area of the specimens. The experiment provides insights into the preservation dynamics of bioeroded foraminiferal tests under controlled dissolution conditions. The dataset includes images, size measurements, and preservation scores for each specimen, along with statistical analyses conducted using R. This data can aid in understanding dissolution impacts on the fossil record and bioerosion's role in foraminiferal preservation.