Unnamed Occurrence (ARDF - PS026; east of the head of Saviukviayak River), Canning District, North Slope Borough, Alaska, USA
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Location: The occurrence is east of the north fork headwaters of the Saviukviayak River and about 16 miles north of Windy Glacier at an elevation of about 2,800 ft. (NW1/4 sec. 22, T. 7 S., R. 20 E., of the Umiat Meridian). This occurrence is shown as location number 17 in Menzie and others (1985). Location accurate within 1-mile radius.
Geology: Phosphate occurrences in the quadrangle have not been described individually but in general occur most commonly as thin, low-grade concentrations, which are estimated to probably average less than one percent of the host rock matrix (Menzie and others, 1985). The permissive rocks for the phosphate occurrences in the quadrangle are the black, calcareous phosphatic siltstones and shales of the Triassic Shublik Formation. Minor amounts of phosphate rock also occur within the Kongakut and Okpikruak Formations, Kingak Shale, and Sadlerochit Group (Menzie and others, 1985).
Age: Triassic, based on the age of the host Shublik Formation (as mapped by Menzie and others, 1985).
Commodities (Major) - P2O5
Development Status: None
Deposit Model: Upwelling-type phosphate deposits (Cox and Singer, 1986; model 34c).
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Menzie, W.D., Reiser, H.N., Brosg