Dear Alexandra and Peter,

what concerns the 18O of Red Sea water we published some data a few years ago:

Ganssen, G., and Kroon, D., 1991: Evidence for Red Sea surface circulation
from oxygen isotopes of modern surface waters and planktonic foraminiferal
tests. Paleoceanography, 6,1, 73-82.

Unfortunately the quality of our salinity data did not allow for a regression.

A new data set from a 1992 expedition, however does.
The relationship is:
18O (V-SMOW) = 0.3056 salinity - 10.774 (r2=0.97, n=23).
More details available on request.

Kind regards

Gerald Ganssen

Dr.Gerald Ganssen
Institute of Earth Sciences
Free University
De Boelelaan 1085
1081 HV Amsterdam
The Netherlands
tel.: 31 20 4447369 (office)
      31 20 4447308 (mass-spectrometer lab.)
      31 653845009  (private)
fax:  31 20 6462457