Field Notebook: CO 1951d
Page 71
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Transcription
7.0 Interbedded siltstone, fossiliferous, platy limestone bed dark gray to black shale, lower bench of is beds + 16 sh is 2.0 then 3.1 of ck+sh, then kpy Sample 10 from 3.1 sh 7.8 Interbedded gray silty shale and shelly siltstone, siltstone in thin beds and limonize, increase in siltstone in upper 1.6, 0.1 Bentonite 4 feet from top. Sample 11 = 217 but upper 1.5 feet. Bentonite (Sample 12) Bentonite Silty siltstone up to silt, 0.2 Bentonite 2.14 from base Shale interbedded up to silty siltstone and interbedded platy to shelly siltstone and shelly fossiliferous, increasing fossilize. and minor silty shale. A810 12.7 Interbedded platy siltstone and siltstone, shelly micaceous sandy sh light (olive) brown weather, Observed foot of argillaceous Crowley Siltstone Observed locally loose olive for weather fine ss hard, dealt as fresh samples. X long fine gr 9.730e weeks late gray lower 36 feet is over base above this much more friable A810 3.16 2.5 62.0+ 34