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     The ⁴⁰Ar/³⁹Ar method is a versatile and powerful geochronometer which has been used to date such diverse materials as lunar and terrestrial rocks more than 4 billion years old and Holocene tephra. In order to promote a greater awareness of the principles, analytical techniques, and utility of ⁴⁰Ar/³⁹Ar geochronology we have organized a course in which three distinguished researchers will present lectures on basic topics and will develop examples of applications such as calibration of the geologic time scale, interpreting the deformational and thermal histories of metamorphic rocks, and dating of bolide impacts on the Earth and Moon.

     La méthode de datation ⁴⁰Ar/³⁹Ar est un géochronomètre puissant et à usages multiples. Il a été utilisée, par exemple, pour déterminer l'âge des roches lunaires et terrestres très anciennes ainsi que l'âge d'unités volcaniques holocènes. Pour parfaire la connaissance des principes des techniques analytiques et des applications de la géochronologie ⁴⁰Ar/³⁹Ar, nous organisons un cours dans lequel trois chercheurs mondialement connus présenteront les sujets de base et développeront ensuite plusieurs exemples d'applications, telles que la calibration de l'échelle des temps géologiques, l'interprétation de l'histoire thermique et de déformation des roches métamorphiques, et la datation des grands impacts météoritiques.

Wednesday, April 9:

Thursday, April 10:

Friday, April 11:

Venue:

Institut de Minéralogie et Pétrographie, Université de Lausanne, Dorigny Campus.

Registration and fee:

Please return the registration form (see below) before January 31, 1997.

Graduate students and staff at universities of the Coordination Romand will receive financial support at the usual rates. The fee for all individuals from institutions other than those of the Coordination Romand will be approximately 30 SFr, depending on enrollment numbers and course note contents. This fee can be paid in cash at the course.

Lunches and Wednesday dinner:

Special tables will be reserved at the dining hall of the University. The full course meal (no choice) costs 10 SFr. Sandwiches and a salad bar are available at other cafeterias. Tickets will also be available for a fondue dinner on the campus Wednesday evening. Please specify on the registration form if you will attend these lunches or the fondue.

Accomodation:

Lausanne tourist office is ready to assist in making your hotel reservations.

Lausanne Tourist Office and Convention Bureau
Ref. Service Information

P.O. Box 49
CH-100 Lausanne 6
Switzerland
Tel: +41 21 613 7321
FAX: +41 21 616 8647

Lausanne University also has an agreement with a few hotels offering a small reduction. In this case you need to make reservations personally, mentioning that you are taking part in a course at Lausanne University. Hotels include (approximate prices are for single bedroom without breakfast):

Hotel Alpha (90 SFr): Tel: +41 21 323 0131; FAX: +41 21 323 0145

Hotel Agora (95 SFr): Tel: +41 21 617 1211; FAX: +41 21 616 2605

Hotel City (85 SFr): Tel: +41 21 320 2141; FAX: +41 21 320 2149

If you wish to stay in the Lausanne Youth Hostel (25 SFr for members; 30 SFr for non-members) reservations must be made personally: phone +41 21 616 5782 between 7 and 9 a.m. and 5 to 11 p.m.

For further information:

J. Berthoud berthoud@sc2a.unige.ch; Tel: 041 22 702 6624; FAX 041 22 320 5732

or Brad Singer singer@sc2a.unige.ch or M. Cosca cosca@imp.unil.ch.

⁴⁰Ar/³⁹Ar Geochronology: Theory, Techniques, and Applications 9 - 11 April, 1997:
Print REGISTRATION FORM or E-mail REGISTRATION FORM.

Due to computer system problems experienced in January, please confirm via e-mail directly to Brad Singer singer@sc2a.unige.ch that your electronic registration form has been delivered to Jacqueline Berthoud's mailbox. Thank You!