stripes
Occurrence number:
174-00-022
Country:
United States
Region:
Montana
Location:
Longitude: -115.58, Latitude: 47.67
Carbonatite:
No
Haines Point is a syenite complex of approximately 6x2.5 km for which there is no published description. The syenites contain aegirine-augite. Alkaline dykes occur and some fenitization is manifest.
References:
ARMBRUSTMACHER, T.J. 1982. Geochemical characteristics of rocks in alkaline intrusive complexes, northwestern Montana: preliminary results. Abstracts with Programs, Geological Society of America, 14: 302.
T.J. ARMBRUSTMACHER, personal communication, 1984.
Location: