Alkaline Rocks and Carbonatites of the World

Setup during HiTech AlkCarb: an online database of alkaline rock and carbonatite occurrences

Kandagubskii

stripes

Occurrence number: 
136-12-028
Country: 
Russia
Region: 
Kola and Karelia
Location: 
Longitude: 32.27, Latitude: 67.1
Carbonatite: 
Yes

This occurrence is situated on the southern coast of the small bay of Kanda-guba on the White sea. The intrusion, with an area of about 3.6 km2, is partly covered by Quaternary sediments. According to geophysical data it has a structure which is close to vertical and it is considered to be the uppermost part of a larger intrusion. It has a zonal structure with small areas of apatite-bearing ijolite in the centre, which change outwards to malignites and carbonatites. The periphery of the complex is composed of alkaline syenites. Fenitised amphibole-biotite gneisses of the Belomorsk Archaean series are widely developed around the intrusion. The presence of lens-shaped bodies of magnetite ores have been predicted, by geophysical means, in the southern contact zone and towards the centre of the massif. The complex is characterised by a high content of rare elements of a carbonatite association type and by a high content of apatite in the ijolite, carbonatites and malignite.

Economic: 
There are some magnetite lenses.
References: 

CHUVARDINSKI, V.G. and KARAEV, S.S. 1988. New data in the investigations of mineral raw materials in the Murmansk region. 12-3. Akademii Nauk SSSR, Kola Branch, Apatity.

Map: 
Fig. 2_28. Kandagubskii (after Chuvardinsky and Karaev, 1988, Fig. 2).
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith