Field Notebook: USA 1995a
Page 85
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Transcription
5/22/95 (32) Holland (1993) locality Caesar Lake Spillway (+ tail) Spillway sections, Holland 1993, saw about 27'+ of limestone and siltstone with numerous bryoz., brachs. and burrows. Lime beds have wavy bedded lower surfaces, some have wavy bedded upper surfaces, some have both ls.= limestone as base conchoidal fracture truncated by those can only be traced for abt. Herbertella sp. they are truncated by ripple solitary corals in general, smaller ones near base of section, & several species; larger "homotrypa" are extensive near top, "Dactyls", Herbertella sp., large solitary corals common. These have a cyclicity of 2' to 5'+ v. silty ls and thinner siltstones. "Several" collections There are 6 or 7 (check photos) of these cycles which are more silty in the lower 1/2 and then become less silty upwards. 3 collections 5/22/95/1A - float from wall of spillway (walked across flat) 5/22/95/1B - N side of roadway float 5/22/95/1C - on top of road in place. Same units as at Wright Bros. Mem. Hill RR exposed weathered zone. Others below this cut