QUARTZ C-AXES ORIENTATION DETERMINATION USING THE ROTATING POLARIZER MICROSCOPE
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dc.contributor.author | Fueten F. | |
dc.contributor.author | Goodchild J.S. | |
dc.date.accessioned | 2021-02-12T03:35:49Z | |
dc.date.available | 2021-02-12T03:35:49Z | |
dc.date.issued | 2001 | |
dc.identifier | https://www.elibrary.ru/item.asp?id=590600 | |
dc.identifier.citation | Journal of Structural Geology, 2001, 23, 6-7, 895-902 | |
dc.identifier.issn | 0191-8141 | |
dc.identifier.uri | https://repository.geologyscience.ru/handle/123456789/24719 | |
dc.description.abstract | A fast and accurate optical method to calculate quartz c-axis orientations using the rotating polarizer stage and standard thin sections is presented. c-Axis orientations are calculated for each pixel and Achsenverteilungsanalyse (AVA) can easily be constructed to study problems that would normally require a prohibitive amount of tedious work. The computer controlled rotating polarizer stage replaces the polarizer and analyzer of the standard petrographic microscope and allows a thin section to remain fixed while the polarizing filters are rotated by stepper motors. Data are collected by stepping the polarizers through a 180° rotation, capturing a frame at each step and extracting information on the intensity of the pixel and position of the polarizers. The position data are used to calculate the trend or trend+180° of the quartz c-axes, while a simple mathematical relationship between intensity and plunge is derived which allows the plunges of c-axes to be calculated. | |
dc.title | QUARTZ C-AXES ORIENTATION DETERMINATION USING THE ROTATING POLARIZER MICROSCOPE | |
dc.type | Статья |
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