| OCR Text |
Show 839 Black Rock Gulch Section 60 section Location: Wolf Hole Mountain NW Arizona, 7 Minute Series (Topographic), Measured Quadrangle, 41 T. SW, Section 3, 13 R. N., Section W. SE, measured was erosion prevention culvert with Section was number one being up the canyon. side Gulch of Rock north Black the on starting measured the at the top of the massive sandstone unit and ending at Black Within Gulch on the north side. Rock Black of due north the of fourth furtherest top Rock Gulch there are major points; the western-most Point, the middle point being the three Starvation point being point along which the section was measured, and the point where the Interstate enters Black was near a gas third the Rock Gulch station. section was measured by R. (for section location see LaRell Nielson December (V-l) figure 148) Thickness Lithology unit 1979. Distance Above Base Kaibab Formation Harrisburg modern 1. (Permian): Upper Member: erosional Limestone, (10YR6/2); gray Meters Meters (Feet) (Feet) contact surface: pale yellowish light weathers (5Y6/l); thin-bedded; brown olive cherty are (70-90% chert); bedding planes well lithwavy and not horizontal; weathers ified; lacks fossils; ional surface canyon; Total the lower to form cliff; contact upper north contact incomplete Harrisburg eros side of on gradational thickness Member Limestone, (10YR6/2); gray (5Y6/l); 1. 22 (4 ) pale yellowish weathers 1. 22 ( 4) of ......•..•• Kaibab Formation (Permian): Fossil Mountain Member: 2. .• brown light,olive thick to thln- 213.95 (702) |
