Thin section

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a section or slice, as of mineral, animal, or vegetable substance, thin enough to be transparent, and used for study under the microscope.
See under Section.

See also: Section, Thin

References in periodicals archive ?
The GeoCentre of the University of Erlangen owns a world renowned, one-of-a-kind collection of carbonate thin-sections and sediment samples.
Petrographic thin-sections were prepared from a block of sandstone and a portion of a columnar ped was extracted from the pit where the saprolite samples described above were taken.
In thin-sections of sandstones, Carrigy and Mellon (1964) found smectite to have a brownish cast in plane polarised light and first-order white to yellow interference colour under crossed nicols.
While the upward decrease in smecite content observed in the study soil suggests that kaolinite may be forming at the expense of smectite or, alternatively, that smectite is altering to kaolinite towards the surface of the profile, there was no evidence for this in the petrological interpretation of thin-sections from the saprolite.