The distribution of phosphorus in the early and middle stages of fractionation of some basic layered intrusions |
| |
| Affiliation: | 1. Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP 13566-590, Brazil;2. Instituto de Ciências e Tecnologia, Universidade Federal de Alfenas, Poços de Caldas, MG 37715-400, Brazil;1. Department of Earth and Planetary Sciences, Northwestern University, Evanston, IL 60208, United States;2. Geodynamics Research Center, Ehime University, Matsuyama, Ehime 790, Japan;1. Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 201800, China;2. University of Chinese Academy of Sciences, Beijing, 100049, China;3. State Key Laboratory of Functional Materials for Informatics, Laboratory of Nanotechnology, Shanghai Institute of Micro-system and Information Technology, Chinese Academy of Sciences, Shanghai, 200050, China;4. Beijing Yuanliu Hongyuan Electronic Technology Limited Company, Beijing, 100070, China;5. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, 200050, China |
| |
| Abstract: | The distribution of phosphorus in those rocks without primary apatite from the Skaergaard, Bushveld and Rhum layered intrusions has been determined. The concentration of phosphorus in the cumulus phases is very low but in some of the rocks nearly all the phosphorus can be accounted for by the amount in these minerals. In all three intrusions the order of entry of phosphorus into the cumulus minerals is olivine >; pyroxene > plagioclase feldspar. Some of Koritnig's conclusions concerning the distribution of phosphorus are criticised. Phosphorus can act as an indicator of the relative amounts of pore material in basic cumulate rocks without primary apatite, provided correction is made for the phosphorus in the cumulus phases and that concentrations are expressed in weight per unit volume. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
