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82 PROFILE AB (Written sideways: Profile ca. 1 km. North of preceding. [Measurements difficult to take and only approximate]. CHUBUTIANO W. E. NEXT PAGE Ca. 115' white to greenish sandstone with some lenses of clay and of gravel. 5' sand and gravel, partly hard + rusty 20' pale variegated sandy clay 18' heavy gravel and X- BONE bedded sand, readily recog-FRAGMENTS nizable by yellow to orange color. 30' light clays and sands 15' heavy gravel with NUMEROUS {#163 lenses of clay + sand, partly DINOSAUR BONES hard iron concretion 55' pale clays with lenses of sandstone DINOSAURS Light colored clays and gravels) 83 (Written sideways: PEHUENCHE Light, partly sili- cified tuff, with bone frags. at about this level on near hill W. PYRO- E. THEIR- ANO (prob- ably). ARGILES FISSILAIRES ?NOTOSTYLOPENSE? (Written diagonally: OBSCURE Ca. 110' Sharply bedded, highly variable, impure CONTINUED BELOW tuffs, mostly hard and concretionary. Ca. 135' Many beds with clays, most- numerous small concretions ly grey or stained brown or black. sombre, reddish Beds brown, white, yellow, in lower etc. part, yellowish Ca. 20' tuffaceous clays. in upper. Variegated, with characteristic lemon-yellow beds. Ca. 30' similar to tuff below, but less massive, banded, green- ish, pink, white. Ca. 40' Massive coarse tuff, 19' hard grey or Lens of ca. 3' black + red general buff tuff with clay with hard ss. above yellow to lenses of dark clay and below. orange 15' reddish 4' greenish or mot- tone clay, mot- tled tuffaceous clay tled green. LAST PAGE Ca. 65' fine tuffs, mostly silicified and very hard + fragmentary. Light in color, brilliantly stained yellow + with numerous limonite nodules. 15' tuffaceous pale pink or bright yellow clay partly silicified CONTINUED ABOVE))