Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
AIN-50-19
1.
Best exposure of lower half of
Grumeros in area. Find out who takes
shale from here & why. Get section of it,
Rustler mine - Robinson.
2.
Bedding surface on top of massive SS N 4°E, 36°S
(This at base of clay & bentonite just under ?
*upper Old tunnel. Cuts bentonite-clay & goes on in
still open.
3.
Here platy SS opens up & clay bed comes into it, lower
part of SS ceases to be crest former
4
Clay bed in 3 above wide here, 10'±, makes bench, 10
5.
Massive x-lam SS comes in over top split of platy
SS cuts into clay over this SS & merges with it.
becomes redly former.
6.
Massive x-lam conglomer. SS orange to pink stain
Fe specks. Above on this slope 2 more ledges, next
up is coarse cql; then one of med-coarse SS.
7.
Good exposure of Glencirun from first SS of it
down to Little Contact. All along ridge from
above 6 to here the 1st Glencirun crops hogbacky,
is thick, evenly bedded & bedder to platy with some
massive zones & intraform cql locally at base.
It thic/kens abruptly just E of 6.
At 7 and north and south of it the Little
Glencirun contact just below the second
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