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High-Temperature Metasomatism of the Layered Mafic–UltramaficMassif in Kiy Island, Belomorian Mobile Beltстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 10 августа 2018 г.
- Авторы: Khodorevskaya L.I., Varlamov D.A.
- Журнал: Geochemistry International
- Том: 56
- Номер: 6
- Год издания: 2018
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 535
- Последняя страница: 553
- DOI: 10.1134/S001670291806006X
- Аннотация: The paper presents results of a detailed petrologic study of metasomatites and their host metagabbroids in the northwestern part of Kiy Island, Onega Bay, White Sea. The first evidence is acquired that coronitization and amphibolization of the host rocks took place at the peak of Svecofennian metamorphism at Т = 700–640°C, Р = 9–10 kbar, and = 0.2–0.3. Accompanying metasomatism has formed a number of long (up to several meters long) melanocratic hornblendite and garnet–amphibole veins 0.2–0.3 m thick. In this area, metasomatites of another type make up single relatively thin amphibole–zoisite lenses that sometimes host ruby-like corundum. The fluid phase that induced metasomatism was poor in salts (Na,K)Cl, and hence, the rocks do not contain sodic plagioclase, and their amphibole is tschermakite but not pargasite. The compositions of the metasomatites of the two types are proved to be complementary, and this indicates that they were most likely produced by high-temperature metasomatism but not via the removal of components by fluid from migmatization zones.
- Добавил в систему: Ходоревская Лилия Ивановна
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | GeoChem1806006KhodorevskayaKOR.pdf | GeoChem1806006KhodorevskayaKOR.pdf | 5,6 МБ | 18 мая 2018 [KhodorevskayaLI] | |
| 2. | Khodor-ingl.pdf | Khodor-ingl.pdf | 4,6 МБ | 18 мая 2018 [KhodorevskayaLI] |