Field Notebook: IA 1951
Page 15
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Transcription
Section 2 (cont. on old face right behind filings) From base of persistent layer of hard banded concretions that are 3' below base of siltstone bed in top of "bottom clay" zone. Concretion zone 4' Silty gray clay, local concretions (hard [illegible]?) Some few silty laminae but most silt in clay. Conc. zone at base, which is silty and grades laterally into silty Fe cemented str layers. 3' As above - Sample 16 upper half Sample 17 lower half 2' Lignitic clay, brown, slightly silty lower 6" silty clay to clayey silt Sample 18 3' Massive siltstone, gray-white, much Fe staining & Fe cemented stringers. Similar to siltstone under upper lignite. May be fine SS locally. 3½ to 4' Hard dense fine grained sandstone. Fe stained silty in upper foot. Pine plant fossils. Sample 19. This appears to be local channel. 1 Fine sand & silt with clay laminae 1½ Silty clay with silt laminae & pockets Sample 20, Grades laterally into silt.