stripes
Occurrence number:
174-00-005
Country:
United States
Region:
Alaska
Location:
Longitude: -160.5, Latitude: 66.22
Carbonatite:
No
Dykes of foyaite and borolanite have been found at eight localities within an area of 25 km2 in the northwest Selawik Hills pluton (Fig. 121), but mapping was of a reconnaissance nature and probably many more are present. An analysis of one such dyke is available (Miller, 1972, Table 3, No. 15).
References:
MILLER, T.P. 1972. Potassium-rich alkaline intrusive rocks of western Alaska. Bulletin of the Geological Society of America, 83: 2111-28
Map:
Fig. 1_121 General distribution of Kobuk-Selawik Lowland alkaline rocks (after Miller, 1972, Fig. 3).
Location: