Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

Результат исследования: Публикации в книгах, отчётах, сборниках, трудах конференцийглава/разделнаучнаярецензирование

Аннотация

In this chapter, we review phase diagrams of alkali and alkaline earth carbonates at high pressures, particularly simple, binary, and ternary systems, which were recently constrained at pressures of 3 and 6 GPa. These studies revealed a number of new alkali-alkaline earth double carbonates. Major transformations of high-pressure carbonates, including changes in carbon coordination, spin transition, and valence state in Fe-bearing -carbonates up to the lower mantle levels, were also discussed. We emphasize the importance of carbonate systems for understanding the low-degree partial melting of carbonated mantle rocks and explaining carbonate inclusions in diamond and other deep-seated minerals. The question of carbonate stability versus the presumably reduced nature of the deep Earth's mantle provides significant impact on the further study of material transport and deep volatile cycle through the history of our planet.

Язык оригиналаанглийский
Название основной публикацииCARBON IN EARTH'S INTERIOR
РедакторыCE Manning, JF Lin, WL Mao
ИздательAMER GEOPHYSICAL UNION
Глава14
Страницы137-165
Число страниц29
ISBN (печатное издание)978-1-119-50826-7
DOI
СостояниеОпубликовано - 24 мар 2020

Серия публикаций

НазваниеGeophysical Monograph Book Series
ИздательAMER GEOPHYSICAL UNION
Том249
ISSN (печатное издание)0065-8448

Предметные области OECD FOS+WOS

  • 1.05.GC ГЕОХИМИЯ И ГЕОФИЗИКА

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