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Vol 189
Pages:
30
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Two genetic types of peristerites in iridescent plagioclases

Authors:
M. A. Ivanov1
A. P. Simakov2
About authors
  • 1 — Saint Petersburg State Mining Institute (Technical University)
  • 2 — Saint Petersburg State Mining Institute (Technical University)
Date submitted:
2010-07-18
Date accepted:
2010-09-16
Date published:
2011-01-01

Abstract

Physico-mathematical modeling has shown that color of iridescent depends on spacing of peristerite lattice. The more spacing lattice, the color of iridescent is higher. The phenomenon of iridescent in plagioclases has an interferential nature. We can select two genetic types of peristerites: peristerites of decomposition and segregation peristerites. Segregation peristerites are formed from postcrystallizational consolidation of peristerites of decomposition. The form of segregation pertisrerites is one of the reasons of polychromatic iridescent genesis in plagioclases.

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References

  1. Королев Ф.А. Теоретическая оптика. М.: Высшая школа, 1966. 555 с.
  2. Крамаренко Н.К. Фазовый состав, пластинчатое строение и иризация плагиоклазов. Киев: Наукова думка, 1975. 108 с.
  3. Минералы: Справочник. Т. V. Каркасные алюмосиликаты. М.: Наука, 2003. Вып.2. 379 с.
  4. Руденко С.А. Полевые шпаты керамических пегматитов Южной Карелии // Записки Ленинградского Горного института. 1952. Т.27. Вып.2. С. 159-195.
  5. Руденко С.А. Метаморфизм минералов – важное явление в истории их формирования / С.А.Руденко М.А.Иванов, В.А.Романов // Записки ВМО. 1978. Вып.6. C. 697-710.
  6. Симаков А.П. Физико-математическая интерференционная модель явления иризации плагиоклазов. // Материалы I Всероссийской научно-практической конференции студентов, аспирантов и молодых ученых «Геология в развивающемся мире». Пермь, 2010. Т.1. С. 77-80.
  7. Furman Sh.A., Tikhonravov A.V. Basics of optics of multilayer systems. Edition Frontieres, Gif-sur-Yvette, 1992. 104 p.

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