Sample chamber and system for analyzing fluid inclusions

Details Sample chamber and system for analyzing fluid inclusions Sample chamber and system for analyzing fluid inclusions

1987-10-27

1989-08-15

Noland, Tom

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

73864, 7387441, 7386491, 356 36, G01N 110, G01N 128, G01N 3324

Patent

active

048563510

ABSTRACT:
Method and apparatus are provided for analyzing fluid inclusions. A sectioned mineral sample is mounted and placed in a vacuum chamber. An optical microscope is used to examine the sample through a window in the vacuum chamber to identify a single fluid inclusion. A stylus in the vacuum chamber is manipulated by the operator to urge the diamond stylus against the identified fluid inclusion thereby rupturing the same. The gases, including evaporated volatile liquids, released from the inclusion are analyzed by a mass spectrometer.

REFERENCES:
patent: 3987677 (1976-10-01), Alter
patent: 4152941 (1979-05-01), Abou-Sayed et al.
patent: 4613755 (1988-09-01), Hudgens
patent: 4625573 (1986-12-01), Henry
"Liquid Inclusions in Minerals as a Geologic Barometer"; pp. 181-195; International Geology Review; 1955; V. A. Kalyuzhnyy (translated by V. P. Sokloff).
"Chemical Composition of Liquid Inclusion in Iceland Spar and Genetic Problems"; Geochemistry, No. 3; pp. 269-278; 1958; N. I. Khitarov et al.
"The Analysis of Fluid Inclusions in Halite"; Geochemica and Cosmochemica Acta; vol. 52; pp. 485-490; 1988; Boaz Lazar et al.
"Mass Spectrometric Determination of Gases in Individual Fluid Inclusions in Natural Minerals"; Anal. Chem., vol. 58, No. 7, pp. 1330-1333; Colin Barker et al.; Jun. 1986.
Reviews in Mineralogy, vol. 12, "Fluid Inclusions"; pp. 109, 117 & 122-129; Edwin Roeder; published by Oct. 1987.

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