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84 PROF A (Written sideways: OBSCURE 12' similar but pink + without concretions Ca. 70' Irregular nodular Zone with hard si- tuffs, usually yellow licified patches and nodules. }I3 on weathered surfaces. Manganese. Abundant Stro- Many beds with phochcilus and some bone small limonite- Ca' 120' +sometimes Tuffs, faintly manganese- banded horizontally. stained S.Mostly pink. concre- tions. N. NEXT PAGE Profile ca. 1 km. east of AA. (Written diagonally: PROFILE CONTINUES) ILE 85 C (Written sideways: LAST PAGE CONTINUES 25' irregular tuffs, }Probable level of "Upper BELOW weathering pink, Quarries." #279. See p. 87. orange, or brown. With hard vesicular layers Corresponding levels? 4'� White to MAMMALS? "Lower Quarries."#153, etc. Yellow, with tuff N. pebbles and con- S. cretions. CON- 10'+, irregular hard TINUES brown vesicular tuffs ABOVE Mammals-{ 3' nodular + pebbly tuff, very {Unconformity at "Lower Quarries" irregular least locally 5' yellow tuff. 1' hard vesicular tuff 18' yellowish tuffaceous 9' yellow concretionary tuff clay, manganese concretions in 6' yellow clay with tuff nodules upper part 3'+ Hard brown bed. 12' soft yellow tuffaceous clay CORRESPONDING LEVELS 4' hard brownish concretionary layer 5'� impure yellow tuff 6' impure yellowish to buff tuff. 5' white to buff tuffaceous clay 12' concretionary yellow tuff. {#158 16' concre- }BONE FRAGS. #284 probably this bed, see p. 89. tionary white tuff)