Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8029

Authors: Masotta, M.*
Freda, C.*
Paul, T. A.*
Moore, G.*
Gaeta, M.*
Scarlato, P.*
Troll, V. R.*
Title: Low pressure experiments in piston cylinder apparatus: calibration of newly designed 25 mm furnace assemblies to P = 150 MPa
Title of journal: Chemical geology
Series/Report no.: /312-313 (2012)
Publisher: Elsevier Science Limited
Issue Date: 2012
DOI: 10.1016/j.chemgeo.2012.04.011
Keywords: Piston cylinder
pressure calibration
low pressure
Abstract: We present new pressure calibration experiments demons trating that the piston cylinder apparatus is suit-able for experiments at pressure as low as 150 MPa. Two newly designed 25 mm furnace assembly have been developed and calibrated using two differe nt calibration methods: the NaC l melting curve and the sol-ubility of H2 O in albitic and rhyolitic melts. The NaCl calibration experiments performed in the pressure range 150 –500 MPa yield the pressure correction that has to be applied to the nominal pressure in order to have the equivalent (real) pressure on the sample. This correction varies as a function of the experime ntal pressure as follows: Pcorrection MPaðÞ¼ −0 :115xP nominal MPaðÞþ 78 : 23 The H 2O solubility experiments in albitic and rhyolitic melts con firm the corrections determined using the NaCl calibration method. Moreover, because these experiments are performed at temperatures higher than those used for NaCl calibration, they demonstrate that the pressure correction is not affected by temperature in the range 800– 1000 °C. The accuracy of the pressure estimate associated wi th the calibration methods is ± 25 MPa. The major advantage of using the new assemblies is that low pressure experiments, which require rapid heating and quenching rates (e.g. volcanic and hydrothermal systems), can be performed with the same ease and precision as standard high pressure experiments for which piston cylinder is routinel y used.
Appears in Collections:Papers Published / Papers in press
02.04.04. Instruments and techniques

Files in This Item:

File Description SizeFormatVisibility
Masotta et al 2012b.pdfmain article634.52 kBAdobe PDFonly authorized users View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA