Frozza, Cristiane Fraga; Suárez-Ibarra, Jaime Yesid; Bonetti, Carla; Martins, Alisson Klayton; Coimbra, João Carlos; Pivel, Maria Alejandra G: Bioerosion area measurements over time in a controlled experimental setting [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.991580 (dataset in review)
Abstract:
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.
Projected test area (µm²) measurements of five specimens (2, 6, 8, 10, and 13) from the Control group across five iterations (T1–T5, UT for untreated areas)) of the digital shadow removal treatment applied to images taken at different dissolution time points (0-13 hours) in acid solution.
Keyword(s):
Related to:
Frozza, Cristiane Fraga; Pivel, Maria Alejandra G; Suárez-Ibarra, Jaime Yesid; Ritter, Matias do Nascimento; Coimbra, João Carlos (accepted): Bioerosion on late Quaternary planktonic Foraminifera related to paleoproductivity in the western South Atlantic. Paleoceanography and Paleoclimatology, https://doi.org/10.1029/2020PA003865
Frozza, Cristiane Fraga; Suárez-Ibarra, Jaime Yesid; Bonetti, Carla; Martins, Alisson Klayton; Coimbra, João Carlos; Pivel, Maria Alejandra G (in review): Bioerosion drill holes increase carbonate dissolution in the planktonic foraminifer Globigerinoides ruber. Geochemistry, Geophysics, Geosystems
Coverage:
Latitude: -29.197810 * Longitude: -47.252840
Date/Time Start: 2007-11-27T08:25:00 * Date/Time End: 2007-11-27T08:25:00
Minimum Elevation: -1542.0 m * Maximum Elevation: -1542.0 m
Event(s):
SAT-048A * Latitude: -29.197810 * Longitude: -47.252840 * Date/Time: 2007-11-27T08:25:00 * Elevation: -1542.0 m * Campaign: 1-7_Fugro_Brasil * Method/Device: Piston corer (PC)
Comment:
This dataset has been carefully reviewed and curated in accordance with PANGAEA's exceptionally high quality standards. However, due to discontinued communication from the authors' side, it did not receive the usual formal approval by the authors and therefore lacks final scientific validation.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Type of study | Study type | Frozza, Cristiane Fraga | |||
| 2 | Sample code/label | Sample label | Frozza, Cristiane Fraga | |||
| 3 | Genus, unique identification | Genus UID | Frozza, Cristiane Fraga | Reference in WoRMS (WoRMS) | ||
| 4 | Genus, unique identification | Genus UID | Frozza, Cristiane Fraga | Reference in WoRMS (WoRMS) | ||
| 5 | Genus, unique identification | Genus UID | Frozza, Cristiane Fraga | Reference in WoRMS (WoRMS) | ||
| 6 | Specimen identification | Spec ID | Frozza, Cristiane Fraga | |||
| 7 | Bioerosion group | Bioerosion gr | Frozza, Cristiane Fraga | |||
| 8 | Treatment: exposure time | T:exp time | h | Frozza, Cristiane Fraga | ||
| 9 | Treatment | Treat | Frozza, Cristiane Fraga | |||
| 10 | Foraminifera, planktic, test area, projected | Foram plankt test area proj | µm2 | Frozza, Cristiane Fraga |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
3120 data points
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