A Miniclave for Experiments up to 4 kbar and 1200°C Used to Study REE-Carbonate Glasses

A. P. Jones and S. Maaloe
School of Geological Sciences, Kingston Polytechnic, Penrhyn Road, Kingston upon Thames, England KT1 2EE
Department of Geology, University of Bergen, Allegaten 41, 5014 Bergen, Norway

Abstract: Glasses quenched from synthetic REE-carbonatite liquids in recent Tuttle bomb experiments require fast cooling rates. To study these glasses further, an internally-heated miniclave has been developed to increase quench rates and extend the operating P-T range of standard Tuttle bombs. The Haskel miniclave can achieve simultaneous P and T of up to 1200°C at 4 kbar for small diameter (1–2 mm) samples. Gas (Argon) pressure is supplied by a small intensifier unit and heating by an internal platinum-wound furnace. Because of the relatively small thermal mass, run temperatures can be reached within a few minutes and quench rates approach those of solid media apparatus.

Keywords: experimental apparatus • high pressure • Haskel miniclave • REE-carbonatite • glass

Mineralogical Magazine; March 1988 v. 52; no. 364; p. 57-61; DOI: 10.1180/minmag.1988.052.364.05
© 1988, The Mineralogical Society
Mineralogical Society (www.minersoc.org)