Combines records of stable oxygen isotope ratios (\(\delta^{18}O_{c}\)) and clumped isotope ratios (\(\Delta_{47}\)) through subannually resolved carbonate archives (e.g. mollusk shells or corals) to reconstruct monthly variability in temperature and salinity (through the \(\delta^{18}O\) composition of the precipitation fluid), using the monthly binning method detailed in de Winter et al., 2020 (Climate of the Past).
binning_seasonality(
d18Oc,
D47,
ages,
SD_d18Oc = 0.1,
SD_D47 = 0.04,
N = 1000,
binsize = "month",
d18O_fun = "KimONeil97",
D47_fun = "Bernasconi18",
export = FALSE
)Vector containing subannually resolved \(\delta^{18}O_{c}\) data
Vector containing subannually resolved \(\Delta_{47}\) data
Vector containing ages for of all samples in years relative to the shell chronology
Error on the \(\delta^{18}O_{c}\) measurements. Either a single value (constant uncertainty) or a vector of length equal to the period in SST data (365 days by default) containing information about the error of each datapoint (1 standard deviation; default = 0.1 permille).
Error on the \(\Delta_{47}\) measurements. Either a single value (constant uncertainty) or a vector of length equal to the period in SST data (365 days by default) containing information about the error of each datapoint (1 standard deviation; default = 0.04 permille).
Number of datapoints for Monte Carlo simulation (defaults to 1000)
Size of the bins in which records are subdivided. month
and season (period of three months) is currently supported.
String containing the name of the transfer function used to
convert temperature and \(\delta^{18}O_{w}\) to
\(\delta^{18}O_{c}\) data (for example: "KimONeil97" or
"GrossmanKu86"). Defaults to Kim and O'Neil (1997).
String containing the name of the transfer function used to
convert temperature to \(\Delta_{47}\) data (for example:
"Bernasconi18" or "Jautzy20"). Defaults to Bernasconi et al.,
2018).
Export table summary of result (CSV format)? TRUE/FALSE
A data frame containing monthly reconstructions of \(\Delta_{47}\), temperature, \(\delta^{18}O\) of the precipitation fluid and \(\delta^{18}O_{c}\).
Grossman, E.L., Ku, T., Oxygen and carbon isotope fractionation in biogenic aragonite: temperature effects, Chemical Geology 1986, 59.1, 59<U+2013>74. https://doi.org/bvpzws
Kim, S., O'Niel, J.R., Equilibrium and nonequilibrium oxygen isotope effects in synthetic carbonates, Geochimica et Cosmochimica Acta 1997, 61.16, 3461<U+2013>3475. https://doi.org/c7bwbp
Dettman, D.L., Reische, A.K., Lohmann, K.C., Controls on the stable isotope composition of seasonal growth bands in aragonitic fresh<U+2013>water bivalves (Unionidae), Geochimica et Cosmochimica Acta 1999, 63.7<U+2013>8, 1049<U+2013>1057. https://doi.org/cbb7zc
Brand, W.A., Coplen, T.B., Vogl, J., Rosner, M., Prohaska, T., Assessment of international reference materials for isotope<U+2013>ratio analysis (IUPAC Technical Report), Pure and Applied Chemistry 2014, 86.3, 425<U+2013>467. https://doi.org/fpc2
Kele, S., Breitenbach, S. F., Capezzuoli, E., Meckler, A. N., Ziegler, M., Millan, I. M., Kluge, T., De<U+00E1>k, J., Hanselmann, K. and John, C. M., Temperature dependence of oxygen<U+2013> and clumped isotope fractionation in carbonates: a study of travertines and tufas in the 6<U+2013>95 C temperature range, Geochimica et Cosmochimica Acta 2015, 168, 172<U+2013>192. https://doi.org/f7sgn6
Bernasconi, S.M., M<U+00FC>ller, I.A., Bergmann, K.D., Breitenbach, S.F., Fernandez, A., Hodell, D.A., Jaggi, M., Meckler, A.N., Millan, I. and Ziegler, M., Reducing uncertainties in carbonate<U+2013>clumped isotope analysis through consistent carbonate based standardization. Geochemistry, Geophysics, Geosystems 2018, 19<U+2013>9, 2895<U+2013>2914. https://doi.org/gfmjrw
Petersen, S. V., Defliese, W. F., Saenger, C., Da<U+00EB>ron, M., Huntington, K. W., John, C. M., Kelson, J. R., Bernasconi, S. M., Colman, A. S., Kluge, T., Olack, G. A., Schauer, A. J., Bajnai, D., Bonifacie, M., Breitenbach, S. F. M., Fiebig, J., Fernandez, A. B., Henkes, G. A., Hodell, D., Katz, A., Kele, S., Lohmann, K. C., Passey, B. H., Peral, M. Y., Petrizzo, D. A., Rosenheim, B. E., Tripati, A., Venturelli, R., Young, E. D. and Winkelstern, I. Z., Effects of Improved 17O Correction on Interlaboratory Agreement in Clumped Isotope Calibrations, Estimates of Mineral<U+2013>Specific Offsets, and Temperature Dependence of Acid Digestion Fractionation, Geochemistry, Geophysics, Geosystems *2019, 20<U+2013>7, 3495<U+2013>3519. https://doi.org/ggrc39
Jautzy, J. J., Savard, M. M., Dhillon, R. S., Bernasconi, S. M. and Smirnoff, A., Clumped isotope temperature calibration for calcite: Bridging theory and experimentation, Geochemical Perspectives Letters 2020, 14, 36<U+2013>41. https://doi.org/fpc3
de Winter, N. J., Agterhuis, T., Ziegler, M., Optimizing sampling strategies in high<U+2013>resolution paleoclimate records, Climate of the Past Discussions 2020, 1<U+2013>52. https://doi.org/fpc4
# NOT RUN {
# find attached dummy data
Case1 <- seasonalclumped::Case1
d18Oc <- Case1[, 29]
d18Oc <- d18Oc[-which(is.na(d18Oc))]
D47 <- Case1[, 30]
D47 <- D47[-which(is.na(D47))]
ages <- Case1[, 27]
ages <- ages[-which(is.na(ages))]
# Run function
binned <- binning_seasonality(d18Oc,
D47,
ages,
0.1,
0.04,
100, # Use small amount of samples for quick testing (recommended N = 1000)
"month",
"KimONeil97",
"Bernasconi18",
FALSE)
# }
Run the code above in your browser using DataLab