1. Stratigraphic information and age models

This section contains the biostratigraphic data and working illustrations in order to derive numerical ages for the studied samples. The data were used as input for an updated version of Dave Lazarus' Age Depth Plot Program (ADP), which was applied to determine the numerical ages of samples. An earlier version of ADP is available from the ftp directory of the NGDC under the URL http://www.ngdc.noaa.gov/mgg/geology/lazarus.html

The file formats, abbreviations and code names used follow those applied in Lazarus et al. (1995).

 

 

1.1. Biostratigraphic lists (bstrat files)

Lists for the investigated cores indicating the datums of the biostratigraphic events and paleomagnetic reversals to derive a numerical age model. These bstrat files are in Excel (text format). All ages follow the integrated time-scale of Berggren et al. (1995). Most of the biostratigraphic events were read from the Initial and Scientific Reports of the DSDP and ODP, after a magnetic reconvertion to the Berggren et al. (1995) time-scale using the Cande and Kent (1995) geomagnetic polarity scheme. The sample intervals (top, bottom) embracing individual events are indicated in mbsf (single numbers) or according to the sample name convention of the DSDP and ODP.

 

Download bstrat files

 

 

 

 

1.2. Line-of-correlation files (loc files)

The "line-of-correlation" files (MsWord, text format) contain the control points for the individual line segments of the age-depth plots (=age models), that were derived for each core from the bio- and magnetostratigraphic files illustrated in Figure 2 of the paper. The age column is indicated in Ma, the depth column is indicated in mbsf.

Download loc files

1.3. Graphs of the Age-Depth Models

Illustrations of the Age-depth Plots (Gif format) showing the positions of the stratigraphic events and the derived age model curve (line-of-correlation, see above).

 

2. Raw Data
The original measurements of coccolith diameters (in micrometers) and number of elements per site and for each sample are available, either as raw data (ascii text format) or illustrated as Scatter plots or as Contour plots, respectively.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

3. Sample ages and Statistics

Table summarizing the age and statistics of measurements from all samples used in this study (one Ms Word text file).

 

Click to download

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. References

Berggren, W.A., Kent, D.V., Swisher, C.C., and Aubry, M.-P. 1995. A revised Cenozoic geochronology and chronostratigraphy. In: Berggren, W.A., Kent, D.V., Aubry, M.-P., and Hardenbol, J. (eds.), Geochronology, time scales amd global stratigraphic correlation. SEPM Special Publication #54, pp. 129-212.

 

Cande, S.C., and Kent, D.V. 1995. Revised calibration of the geomagnetic polarity timescale for the Late Cretaceous and Cenozoic. Journal of Geophysical Research, 100(B4):6093-6095.

 

Lazarus, D., Spencer-Cervato, C., Pika-Biolzi, M., Beckmann, J.-P., von Salis, K., Hilbrecht, H., and Thierstein, H. 1995. Revised chronology of Neogene DSDP Holes from the World Ocean. Ocean Drilling Program Technical Note No. 24. Available at the National Geophysical Data Center (NGDC) at the URL http://www.ngdc.noaa.gov/mgg/geology/lazarus.html.