|Quadrangle map, 1:250,000-scale||TE|
|Quadrangle map, 1:63,360-scale||C-6|
|Nearby scientific data||Find additional scientific data near this location|
|Location and accuracy||Anikovik River is a southwest-flowing stream, about 7 miles long, whose mouth is at York on the Bering Sea about 9 miles east of Tin City. This locality is on the main drainage of the river, about 1.5 miles upstream from the mouth at York. This is locality 37 of Cobb and Sainsbury (1972). Cobb (1975) summarized relevant references under the name 'Anikovik R.'.|
Geologic descriptionAnikovik River's eastern tributaries have headwaters in Ordovician limestone of the York Mountains (Sainsbury, 1972) whereas the main drainage and western tributaries are in areas underlain by a thin-bedded, slaty metapelitic and metasandstone sequence of unknown but probable Paleozoic age locally intruded by altered mafic bodies. The USBM completed three churn-drill holes in a line across Anikovik River at this locality (Mulligan, 1959). Heavy mineral concentrates from the five feet of gravel encountered here contained chromite (in one hole; 0.23 pounds of chromite per cubic yard containing 48 % Cr2O3), pyrite, limonite pseudomorphs after pyrite, olivine, augite, apatite, cassiterite, and gold. The gravels contain only a trace of tin.
|Geologic map unit||(-167.635739023726, 65.5042171025254)|
|Mineral deposit model||Alluvial tin placer (Cox and Singer, 1986; model 39e)|
|Mineral deposit model number||39e|
|Age of mineralization||Quaternary|
|Workings or exploration||Three USBM churn-drill holes were completed here (Mulligan, 1959).|
|Indication of production||None|
Cobb, E.H., 1975, Summary of references to mineral occurrences (other than mineral fuels and construction materials) in the Teller quadrangle, Alaska: U.S. Geological Survey Open-File Report 75-587, 130 p.
Cobb, E.H., and Sainsbury, C.L., 1972, Metallic mineral resources map of the Teller quadrangle, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map MF-426, 1 sheet, scale 1:250,000.
Mulligan, J.J., 1959, Sampling stream gravels for tin, near York, Seward Peninsula, Alaska: U.S. Bureau of Mines Report of Investigations 5520, 25 p.
|Reporters||Travis L. Hudson (Applied Geology)|
|Last report date||5/10/1998|