Ritter, Matias do Nascimento (2018): R script used for the analysis of spatio-temporal patterns of fossil molluscs on the continental shelf of southern Brazil. Universidade Federal do Rio Grande do Sul, Porto Alegre, PANGAEA, https://doi.org/10.1594/PANGAEA.885479
Always quote above citation when using data! You can download the citation in several formats below.
The R codes provide Bayesian model fitting procedures for AAR-^14^C datasets. These codes are updated versions of the analytical scripts published by Allen et al. (2013).
Based on the ages derived from the models fitted, it is possible then to account for the time-averaging (temporal resolution of the fossil record). The time-averaging estimates are based on empirical posterior distributions, accounting for dating uncertainty, as in Ritter et al. (2017).
In addition, the R codes implements the figures produced both the cited dissertation and its derived manuscripts, like the best models fitted, age-frequency distribuitions (Histograms), its relations with sea-level oscilation in the Southern Brazilian shelf etc.
Ritter, Matias do Nascimento (2018): Spatio-temporal patterns of fossil molluscs on the continental shelf of southern Brazil (Padrões espaço-temporais do registro fóssil com base em acumulações de moluscos da plataforma continental do sul do Brasil) - PhD Thesis. Universidade Federal do Rio Grande do Sul, Porto Alegre, Brasil, 140 pp, hdl:10183/174169
Allen, Andrew P; Kosnik, Matthew A; Kaufman, Darrell S (2013): Characterizing the dynamics of amino acid racemization using time-dependent reaction kinetics: A Bayesian approach to fitting age-calibration models. Quaternary Geochronology, 18, 63-77, https://doi.org/10.1016/j.quageo.2013.06.003