Field Notebook: MD 1945h
Page 31
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Transcription
At 83-6 a very silty light tan impure flag clay streak. 96-5 very closely laminated siltstone. Some thin sandy horizons. Laminations show contortion at 87. 97 calcareous siltstone 110 dark brownish-black to black shaly siltstone. Some iron-staining and few nests of pyrite. 111-5 limestone. Dense, finely grained. 117-7 gunmetal-gray friable claystone. Gets silty and shaly toward end of unit 118 carbonaceous shale with coaly seamlets Two narrow calcareous streaks 118-6 COAL 120-1 Black silty claystone with questionable impure silty [illegible] clay at top. Coaly surfaces shown on breaking upper part 122 limestone grading to calcareous claystone. 127-8 gunmetal-gray claystone. First foot or to somewhat calcareous. Around 123 there are abundant fragments of "siderite" In lower portion ironstone layers comm[on]. 129-6 calcareous claystone 136 gray silty claystone to shaly siltstone 137 fine-grained sandstone 138-8 coarse-grained gray siltstone. 159-2 white, fine- to medium-grained sandstone 162 light gray to dark gray slightly silty claystone 169-3 dark gray argillaceous limestone 170-3 dark gray silty claystone. Dendritic black streaks 179-5 light greenish-gray silty claystone to siltstone varying throughout in silt content. Many branching