Field Notebook: SD, NE 1959
Page 43
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Transcription
Loc. 46 Crawford Ranch; Spur just east of road to Little Eagle just W of center, sec. 13, T 19N, R. 26 E. Lower Trail City with D. nicolleti concretion layer in place in exposure on west side toe of spur and PB-geruilliz concs in turf on toe end in float. Section at exposure:-(ascending) (1) 6.0 Slope wash below nicolleti conc, about 3' bedrock of clk. gray silty clay and with O-stained silt. Nicollleti concretion in upper 1.5 another at same level laterally large geruilliz concs and small grey-wash, between concs below D. nic (2) 10.0 As above, without obvious concretions, some sloughing from edge of bank above (3) 1.2 Grass roots zone with various concs. probably near PB zone (4) 5.6± Grassy slope with geruilliz and PB concs in turf. No discernable order - both found at top of interval but suspect settling and slope wash. Probably they are 18 to 20' above the D. nic concs. 20