Origin of Cl-bearing silica-rich melt inclusions in diamond: experimental evidences for eclogite connection

Litasov, K.D.; Safonov, O.G.; Ohtani, E.

Статья опубликована в высокорейтинговом журнале

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: 18 июля 2013 г.

Авторы: Litasov K.D., Safonov O.G., Ohtani E.
Журнал: Geology
Том: 38
Год издания: 2010
Издательство: Geological Society of America
Местоположение издательства: United States
Первая страница: 1131
Последняя страница: 1134
DOI: 10.1130/G31325.1
Аннотация: Melting phase relations of a model chloride- and carbonate-bearing eclogite have been studied at 7.0–10.5 GPa and 1200–1675 °C. The mineral assemblage coexisting with partial melts is garnet, omphacite, kyanite, and coesite or stishovite. At temperatures of 1200–1400 °C, the partial melt has an SiO2-poor, Cl-bearing carbonatite composition. With increasing temperature, it becomes progressively SiO2 rich, and at temperatures of 1500–1700 °C contains as much as 53 wt% SiO2. The compositions of the melts are comparable with those of silicic end members of inclusions in fi brous and/or cloudy diamonds worldwide, implying that they may be produced via chemical reactions of alkalic chloride-carbonate liquids with mantle eclogites. Our experiments reproduced the trends of the compositional variations of the fl uid or melt inclusions within eclogitic diamonds, and thus suggest a reliable model for their origin.
Добавил в систему: Сафонов Олег Геннадьевич

	ИСТИНА	Войти в систему Регистрация
	ИСТИНА ЦЭМИ РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА

ИСТИНА ЦЭМИ РАН

Origin of Cl-bearing silica-rich melt inclusions in diamond: experimental evidences for eclogite connectionстатья

Прикрепленные файлы