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[[circled]] 18 [[/circled]] March 25 - Section next to ravine [[sketch of geologic column in left margin]] --------- | 3'=======| E ---------| | D ---------| | | | | | ---------| | C ---------| | | | | | ---------| 30' | B = Chert ---------| | Breccia | [[/sketch]] About 30' of heavy-bedded chert above gravel, boulder bed of Breccia zone. Contains lenses of ls. one about 20' above base with Xestosia. Heavy chert with lenticular ls. at top. With ammonites C = 40+- Thin-bedded shale & chert with thin ls at top 3' +-? D - 40' of [[insert]] paper [[/insert]] thin bedded sh with occasional ss bed, none very thick. E - About 50' dark gray calcarenite with few fossils and these mostly broken. Some dark chert. Occasional Richtofenids. Above E comes cherty brown, thick bedded siliceous rock with papery siliceous shale. 20' + 100 paces = 250' + 20' more to a biohermal layer with considerable sand - makes a hump. E estimated at 160' - Upper part E is sandstone. F = hump at 20'+-? This might be Cretaceous.