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2 Somewhat generalized section near West end of good exposures at barranca between camp + Casa Ramos: Upper Part: PROFILE A D 1 Rodados Tehuelches of Ameg. [Part omitted]} tuffs About 115' sandy clays, no conspicuous variation or well defined beds, but broadly + evenly banded horizontally. Few fossils, bone fragments. Conformity About 55' broadly bedded variegated fine sands, tuffs, clays. Local characteristic + well Defined beds (see detailed Section), but all variable Over broad distances Laterally; little or no Coarse material. Abundant excellent fossils. Probably conformable Top of channel series, see continuation, p. 4. [Profile goes down end of spur near W. end of barranca]. (written in map: Low x-x lava- line of capped section. Mesa Ca-adon A Edge of upper channel beds High Meseta) Details of variegated middle 55' of section on 3 opposite page, taken on cast side of 'Ca-adon A' (farthest west of continuous good exposures); Beds are so variable this would not apply exactly 100 yards away, but is characteristic: Yellow clay with nodules. Pale yellow and pink sandy clay. Hard, buff, nodular sandy clay. Yellow clay. Massive gray sandy tuff. Pale colored clay, mostly pink below and yellowish to greenish above. {Hard versicular bed, yellow weathering pink Many bone fragments mottled yellow clay. Gray to pink tuff. Yellowish or greenish clay. Massive gray sand or sandy tuff. clay, weathering yellow. Tuffaceous clay. Yellow band, clay balls Many bone frag's. Tuffaceous clay. Clay balls in lower pt Sandy clay Massive gray sand or sandy tuff. clay cg., highest true channel bed at this point. Fossils occur throughout, most numerous at this spot in beds indicated.