Kaiparowits placer

Region West, Southwest
Mineral systems
Deposit types
Other minerals

Information leading to the delineation of this focus area

Basis for focus area The focus area is based on the outline from Krahulec (2018b) but is refined to focus on the placer deposits in the north and south of the district.
Identified resources Unknown.
Production Unknown.
Status Past exploration.
Estimated resources ~300,000 tons at average grade of 9.6% TiO2 and 3% ZrO2 (Krahulec, 2018b).
Geologic maps Hintze (1980), scale 1:500,000.
Geophysical data Inadequate aeromagnetic and aeroradiometric coverage.
Favorable rocks and structures Titanium-Zr occurrences are in the John Henry Member of the Upper Cretaceous Straight Cliffs Formation. The better paleoplacer deposits developed in swash zones during regressive phases. The Straight Cliffs Formation has been folded into a series of open, upright, north-northwest-trending anticlines and synclines (Force and Creely, 2000). The heavy mineral concentrations generally occur in small, red-brown, elongate lenses from 3 to 15 ft thick, 100 to 300 ft wide, and 300 to 3500 ft long.
Deposits Mann-Longshot, Calf Creek (MRDS dep_id: 10015475).
Evidence from mineral occurrences MRDS; UMOS (Utah Geological Survey, 2021); Krahulec (2018b).
Geochemical evidence No data.
Geophysical evidence None.
Evidence from other sources Krahulec (2018b), Mills and Rupke (2020).
Comments Possible Ta from tantalite-columbite accumulation.
Cover thickness and description Exposed at the surface.
Authors Stephanie Mills.
New data needs None requested at this time.
Geologic mapping and modeling needs None requested at this time.
Geophysical survey and modeling needs None requested at this time.
Digital elevation data needs Lidar complete.