Field Notebook: CO 1951a
Page 99
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Transcription
gray to buff, locally pinkish. Coarse + clay layers include chert + quartz etc. frag., also intraforma clay pellets locally. Much Fe stain locally, some in blebs from 1/4 to 1/2" in diam., locally concentrated in concretions up to 3' in diam. Locl pH bed worth, cyl local discoal fractone base common 10'+ to 4'.0 Brown to red silty clayey + silty clsty local lenses hard fine ss in upper foot. 13 to 15' SS - fine grained massive x laminated wealthy buff with pinkish zones + local pelleted zones. > bed bottom. 19' Claystone (mudly?) about 1.5 to 2.0 of gray at top, then maroon 3 to 4 feet best gray grading to gray - all gray in lower 3'. 2.5 Concretionary? zone of argill is? test Gray weather like gray to cream with orange Fe stain. Coarse fracture. No bedding, wavy sulfide thrust. 3.5 Dark gray claystone, hard with white flow specks + some calc flecks silty + greenish in basal 1.5 5.7 Fine grained SS buff to fine brown weather, eroded at top grades up into claystone above. Is massive. 14 Slope wash on gray-green claystone, no hard beds. 9.1 Concretionary layers 47