Alkaline Rocks and Carbonatites of the World

Funded by HiTech AlkCarb - New geomodels to explore deeper for Hi-Tech critical raw materials in Alkaline rocks and Carbonatites

Donenzhal

stripes

Occurrence number: 
084-00-045
Country: 
Kazakhstan
Location: 
Longitude: 79.48, Latitude: 48.1

This 15 km2 body is intruded into Cambrian and Ordovician sediments and tuffs. It comprises biotite, riebeckite-biotite, aegirine-biotite and muscovite-riebeckite syenites that grade gradually into each other. Pegmatites are also typical for the massif. Dykes are not well developed in the intrusion but there are some early aplitic syenite and bostonite dykes while a second stage is represented by dykes of microdiorite and porphyry.

References: 
ZIRYANOV, V.N. 1969. Petrology of the metasomatically altered granitoids and alkaline rocks of the Chingizsky zone. Nauka, Moscow. 160 pp.
Location: 
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith