Field Notebook: 1984a
Page 149
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Transcription
28 40. Med. gray shale 29 50. Lignite 30 165. Mod. gray shale, grading upward in 20 cm to brownish gray mudstone; graded medium gray mudstone intervals 2cm thick each. 31 40. Brownish gray vf g sand w/ thin siltstone intervals X-labeled, red/brown-gray intervals 32 100. Lignite 33 215. Channel ss, basal contact down cutting, 500 cm long set, log on contact. VFg medium gray ss, V dirty w/ X-bolding and carbonaceous matter on X-beds, Contains clay Fe concs., tan weathering above 100cm