Eucolite from oldoinyo Lengai,Tanzania |
| |
| Authors: | JB Dawson T Frisch |
| |
| Institution: | 1 J. B. Dawson, Department of Geology, University of St. Andrews, Scotland;2 Frisch, Mineralogisch-Petrographisches Institut der Universität, München, Germany |
| |
| Abstract: | Eucolite occurs in ejected blocks of agpaitic wollastonite-bearing nepheline syenite in the pyroclastics of the active carbonatite volcano Oldoinyo Lengai, northern Tanzania. An analysis of the syenite is given, and chemical, optical and X-ray data for the eucolite are presented. The agpaitic paragenesis at Oldoinyo Lengais is one of the few recorded instances of agpaitic rocks in carbonatite environment. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
