Quadrangle map, 1:250,000-scale | KL |
---|---|
Latitude | 68.48 |
Longitude | -155.71 |
Nearby scientific data | Find additional scientific data near this location |
Location and accuracy | Location is at west end of Ivotuk Hills, 100 m from Otuk Creek. Known to within one mile. |
Geologic descriptionA 1.2 m-thick sequence of interbedded phosphatic pelletal limestone and shale of the Otuk Formation is exposed on the north side of the Ivotuk Hills. The limestone beds have lenses that average approximately 78 mm thick and comprise up to 50% of the 1.2 m-thick section. This occurrence is unique because rocks with such high phosphate content are not common in the Otuk Formation. The Lisburne Ridge phosphate occurrence, 47 km to the northwest may be an extension of the Ivotuk phosphorites. | |
Geologic map unit | (-155.712926396679, 68.4795150888507) |
---|---|
Mineral deposit model | Bedded phosphorite |
Mineral deposit model number | 34c |
Workings or exploration | Geochemical analysis showed the phosphatic limestone contained 30.7% P2O5, 0.11% V, and 150 ppm U. |
---|---|
Indication of production | None |
MRDS Number | A106134 |
---|---|
References | |
Reporters | K.D. Kelley |
Last report date | 2/7/1997 |