Feldspars under Conditions of High Temperature-High Pressure
详细信息
- 责任者：Liu Xi (Key Laboratory of Orogenic Belts and Crustal Evolution ; MOE ; Peking University ; Beijing 100871 ; China) ; Hu Zhangyi
- 刊名：Acta Petrologica Sinica
- 出版年：2010
- 卷期：26(12)
- 关键词：长石族 ; feldspar group ; 高温高压实验 ; high temperature-high pressure experiment
- 页码：p.3641-3650
- 图表：6 illus., 2 tables, 93 refs.
- 分类号：0700
- issnNo：ISSN1000-0569
- isbnNo：CN11-1922/P
摘要
As one of the most important minerals in geology, feldspar might enter the deep interior of the Earth via slab subduction process. Consequently, its phase relations and physical-chemical behaviors at high pressures could be very significant to the geodynamic process of the Earth’s interior. In this paper, the authors summarized in some phase diagrams all known high pressure-high temperature experimental data about feldspars with various compositions. These phase diagrams evident that a full picture about feldspar at high pressure is still unavailable, so that further high-pressure experimentation is necessary. Additionally, the authors briefly reviewed the available physical properties of the high-pressure phases derived from the feldspar compositions, and integrated them into pressure-density profiles which were subsequently compared to the pressure-density profile of pyrolite.