Manganese deposits of southeastern Utah

PLATE 2. Map of Little Grand district, Utah, showing location of manganese deposits and distribution of formations containing them._____________________________________________In pocket 3. Map showing distribution of manganese deposits on Duma Point, Utah___________________________________.____In pocket FIGURE 3. Index map of southeastern Utah___________________________ 66 4. Map of manganese deposit on Black Bird claim, Little Grand district, Utah____.____-____-_._______-_.____-_-_____-.87 5. Thin section of fine-grained manganiferous sandstone from Black Bird deposit.__.__._,.__.___.__.;______._.____.__88 6. Thin section of manganiferous sandstone from Summerville deposit, southeastern Utah______________________________ 98 7. Manganese ore from blanket vein in Summerville formation east of Colorado Fuel & Iron Co. workings, Little Grand district-___-__-___-____-_-____-___--____-_____-.__-___ 100 8. Sketch map showing distribution of manganese deposits along cliffs northeast of head of White Wash, Little Grand district._ 101 9. Thin section of manganese ore from deposit in Summerville formation north of head of White Wash__________________ 103 10.Thin section of manganese ore from blanket vein in Summerville formation at Duma Point________---_____--____--_-111 11.Polished section of manganese ore from deposit in sandstone of Summerville formation at Duma Point-______-__--___--___ 113 12. Thin section of manganiferous sandstone from deposit in Morrison formation east of Courthouse Wash, Utah_____________ 120 13.Map of manganese deposit on northeast side of Little Valley, Utah._._____._.___.___.__.____._.___._____.--..___.