From:   NAME: Dr. Ulrich Berner
        FUNC: BGR Hannover <B121BERNER@A1@RZVAX>
To:     NAME: isogeochem discussion list <smtp%"[log in to unmask]"@internet>

Dear Colleagues:

The Ninth International Conference on Geochronology (ICOG9), of which I am
co-convenor, takes place in Beijing, China from August 20 - 26, 1998. Apart
from other symposia and sessions, a symposium "Isotopes in Organic
Systems" is planned that will include the following subtopics:

a) Dating for Organic Systems
b) Isotope Variation in Organic Systems
c) Organics and Ore Deposits
d) Abiogenic Petroleum and Gas

As isotope geochemists you might be interested in these topics and I would like
to warmly invite you to take part in the symposium and to submit an oral or
poster contribution. I would be very grateful if you could send me a title and
a short abstract by August 15, 1997 at the latest.

We would be pleased to receive these in any form but it would be very helpful
and
more preferable if you could either send them by e-mail in ASCII format to our
department
secretary, whose e-mail address is: [log in to unmask] or alternatively by
post with a disk, or of course by fax to our office (Fax: + 49-511-643-3664).
Should there be any questions, please do not hesitate to phone us (+ 49-511-
643-2580) or the ICOG9 Secretariat, Chinese Academy of Geological Sciences,
Baiwanzhuang Road 26, Beijin, 100037 China  (phone: + 86-10-68311545
or Fax: + 86-10-68311545).

Professor Wang (convenor) and I will endeavour to put together an interesting
symposium. The contributions will be selected on the basis of research quality
and relevance to the programme content. We very much hope that you might be
able to take part.

We look forward to hearing from you.

Best regards

Wolfgang Stahl