Field Notebook: Texas 1957a
Page 160
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Transcription
(150) 5V52) Ls, organic lag; light gray weathering Products: crushed cobblews; upper 2" rich in siliceous cement + fossils. 2 1/2' 53-54) Alternation of limestones like 52 and siltstones like 45; at least 4 alternati intervais are poorly exposed; siltstones have silica bands. 12' # 55) Calcarenite - cobbles 3" to 6" diam; about 5% or less siliceous rocks in this unit. 8' This seems to form the base of King's basal Leonard Bt. 8/1/57/3, float found near bed 43. I believe it has come down from either the lagging bed 50 or in the Leonard above. 8/1/57/10 - NE q Section 20, 200 yds, from bed #24 - one light colored block, gray ones are in matrixy rock afternoon (8/1/57) walked along Wolfcamp central to the NE about 1 mile. The upper whole of the Wolfcamp is poorly exposed along here and even the basal conglomerate of the Wolfcamp is incompletely exposed. The Dimple is exposed in a window (?) on the Dugout Creek Thrust sheet. A Dimple is the apparent source for much of the lower Wolfcamp Congl at this point. Collection 8/1/57/8 Daymond ? is exposed just to the SW of the Dugout; (8/1/57/9) is from sandsilt in Daymond. SW NE Section 20 #24 + Shale conglo Daymond / Dugout \ // in Wolfcamp.