Apparatuses and method for paleocurrent direction determination

Details Apparatuses and method for paleocurrent direction determination Apparatuses and method for paleocurrent direction determination

1978-05-12

1981-12-22

Corbin, John K.

Optics: measuring and testing

By polarized light examination

Of surface reflection

356 33, G01N 2123

Patent

active

043068103

ABSTRACT:
A reflected light method of paleocurrent determination uses laser light source for investigation of paleocurrent direction for oriented sandstone samples from surface and from drill cores. The technique determines the average optic axis orientation by the variations in the intensity of a beam of reflected light from a polished surface of the sample as the sample is rotated.

REFERENCES:
Sippel, R. F., "Quartz Grain Orientations-1 (The Photometric Method)," Jr. of Sedimentary Petrology, vol. 41 #1, 3-1971, pp. 38-59.
Elshazly-Zaghloul et al., "Explicit Solution for the Optical Properties of a Uniaxial Crystal in Generalized Ellipsometry" Surface Science, vol. 56, 1976, pp. 281-292.
Azzam et al., "Application of Generalized Ellipsometry to Anisotropic Crystals", Jr. Op. Soc. America, vol. 65, 4-1975, p. 462.

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