A complex of 2.5 x 5 km, that consists of two syenite stocks and a narrow ring dyke. The stock in the west contains peralkaline granites, the one in the east syenites, and the ring alkaline gabbro.
Ref.: http://www.koeln.netsurf.de/~w.steffens/kgi.htm;
http://members.lycos.co.uk/scubaholic/geology.html