We are looking for a MORB standard sample which has less contact with
seawater (This means that the rock has less contamination of a Cl from
seawater). We expect that the MORB sample should preserve its nature from
If anybody knows who has such a sample or where we should contact, please
let us know. We'd appreciate for your information on this matter.
We have started to measure stable chlorine isotope composition (delta-37-
Cl vs. standard mean ocean chloride) in rock samples. Our goal is to know
Cl flux between earth surface and its interior.
Masaaki Musashi, Dr.
Department of Geochemistry
Faculty of Earth Sciences
University of Utrecht
P.O.Box 80021, 3508TA Utrecht
e-mail: [log in to unmask]