Display DSDP/ODP/IODP Data

On Table view, pick Stats button, and then 2D graph option, 2D graph, color code (text/integer).

Depth should go on the Y-axis, and if you use a field name like "DEPTH" or "DEPTH_MBSF" it will be automatically reversed.

Use "SITE" for the color coding.

Each unique value in the color coding variable will have a different color.

If you have bad values, you have two choices:

  1. Filter the database, to have just the limits you want to show.  For example, pick "SV > 0 and SV < 6000".  Some of the bad values could be codes (like -9999) for missing data which hopefully are removed automatically during the import.  Density should be greater than 1 (fresh water).
  2. Edit the graph once drawn, such as rescaling an axis or changing the labels.
The program will produce a legend, on the File (graph) menu or by right clicking within the graph.  You can put that legend on the graph by:
  • Copy to clipboard from the toolbar on the window with the legend, or right clicking in the wrindow.
  • Right click on the graph, and pick Paste from clipboard.
  • Drag the legend into place, and double click.
  • This will not survive a redraw, but you can redraw the legend.
If you want a single Site, use the Filter option.

Pick Site from the drop down list of DB fields, set the operator to the right to "=", and enter the value.

Pick Add condition.

Pick Apply filter.
Filtered graph.

Note that this site appears to have two sedimentation rates:

  • Surface to 510 meters, at 2 MA, so about 255 m/Ma.
  • 510 to 570 meters, 2 to 13.5 Ma, so about 60 m/11.5 Ma, or about 5 m/Ma

Click on the graph to get the coordinates in a popup window, and they appear on the status bar as you roam with the mouse.

Use button on the graph's toolbar to measure slope between two points on the graph.  Accuracy will be best if the points are far apart, and the graph is as large as possible so the points selected will have the correct coordinates.


last revised 10/31/2022