| OCR Text |
Show 116 DURAN GO SECTIO N LaPlata T. 35 County, Colorado R. N., 9 W. Section 5 May, 1950 (Measured by Clifford N. Holmes) . Wanakah formation: (continued) Silty sandstone; grayish-green, finel black very and red accessories, irregular red "carne lian" chert along fractures and seams, irre gular chert partings, maximum width 1/16 of an inch 0 • 0 0 iii ••• 0 0 0 0 • ., • 0 • 0 , 0 0 • 0 • '8 CI 0 0 0 0 0 • 0 0 0 • • Mudstone; pale reddish-brown, lOR5/4, fine scat tered well-rounded quartz grains in a silty shale matrix, slight fissility, mainly a sandy siltstone with clay binding.............. Sandstone; grayish-green, 5GY6/1, silty, scattered 'medium well-rounded quartz grains, fine black and red accessories............................ lOR 5/4 fine scat Mudstone;.pale reddish-brown, 2.8 31 01 3.5 28.3 .5 24.8 , tered well-rounded quartz grains in a shale'matrix, slight fissility, mainly silty a sandy silt.so.ne with clay binding, lower 8' red slope partly covered; probably same as upper 8'. 0 0 0 •• 0 (It • ., • ., •• 0 •••••••••• Sandstone; light greenish-gray, •••• 0 •••• 0 .. • • fine-grained, very very fine black accessories, "'heavy" ledge, lenticular, grades into unit below; this is 'probably cap of Bilk Creek sandstone, this is poor unit in general. The top 08 has a platy we.athering. Sandstone; very light yellowish-gray to light gray, very fine-grained, very fine black and orange accessories, friable, irregular concretionary weathering, "heavy", probably barite (?) or I 0 carbonate Covered; 0 • 0 • 0 0 • 0 • 0 • 0 0 0 • 0' •••• 0 •• 0 0 ••• 0 •••••• ' 0 0 0 a sandstone 0 0 0 0 0 (?), 0 0 ••• 0 •••• sam as 0 •• 8 above 0 8 0 0 e ..•..••••••..•• 1q .2 24 3 Ii |
