Sedimentation Rates Lab
Prepare a Word document with appropriate tables and figures to summarize your results.
- Include a location map to show where these cruises went, and
discuss the age of the crust there.
- Determine how the overall sedimentation rates (m/m.y.) vary among these
- Determine how the sedimentation rates (m/m.y.) vary as a function of depth
in each hole.
- Determine and discuss how the P wave sound velocity changes with depth.
- Include an acknowledgements sections
- Incude a refererences cited, with correct format, for the data and other
papers you consult.
General pages on the DSDP/ODP databases
Data. You can get data for an entire Leg, or each site
individually. In MICRODEM it will be easy to view the results by hole if
you download by leg;
that might be harder to manipulate in Excel.
- Look at the following legs, both part of the ODP. You do
not have to read the full text for the references to the two legs, but a quick look
(especially the abstract) might
help you understand the general purpose of these cruises.
- Leg 121 (sites 752 to 758)
- Leg 182 (sites
1126 to 1131).
- Obtain Depth-Age Models for the two legs:
- Age depth models at:
- If you have multiple Age Models, use the later or more complete
(Shipboard determinations are preliminary; Initial Reports come after them, and Final
Reports come last and would be most reliable).
- Plot the data for each hole (age versus depth). This can be on
one graph or several.
- For the most interesting hole, compute the sedimentation rate for each linear segment you see in
the data. This will be in m/m.y. Then qualitatively compare
it with the other holes.
- Obtain P-wave velocity data from the two legs.
- Data at:
- You want PWS3 data if available; otherwise use PWS1
- Note you will also get other data which you will have to trim out.
Failure to do this will create problems. In addition to the
typical cleanup needed at the start of the data file and the end, you
will have to deal with the middle of the file.
- Plot the P-wave velocity versus depth for each leg. This can
be on one graph or several.
- Obtain bulk density data from the two legs.
Detailed directions for use in MICRODEM. You can use Excel or Matlab to
import data to produce the graphs as well (use their import wizard).
Maps with DSDP/ODP/IOPD holes:
- The course home page on the web has links to a file in Google Earth, and
to other KMZ files that might be useful.
- Open a map, such as:
last revised 9/15/2016