-235- Section 39 contd. Thickness (feet) 12. Dolostone, brown weathering, locally the beds are unaltered limestone, 6 to 12 inch beds . . . . . . . . . . . . . . . . 36 11. Calcirudite, variety of limestone peb- bles, 2 to 3 inches in diameter . . . . . . . 4 10. Shale, dark gray, lenticular, poorly exposed . . . . . . . . . . . . . . . . . . . 0-2 9. Limestone, medium to light gray, massive, composed of shell fragments of sand and silt sizes, 1 to 6 foot beds, in part dolomitized forming brown patches . . . . . . . . . . . . . . . . . . . 21 8. Limestone, medium gray, large percentage of quartz and dolomite sand grains and silt, more easily weathered than units above and below . . . . . . . . . . . . 12 7. Limestone, medium to light gray; lower part is shaley, in beds 6 to 10 inches thick with uneven, wavy bedding sur- faces; upper part is massive; organic fragmental . . . . . . . . . . . . . . . . . . 18 6. Shale, brown, much silt and very fine sand, this unit thickens and thins along out crop . . . . . . . . . . . . . . . . . . . 0-7