Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
25) Calcarenite, orange-brown weathering, dark gray to dark brown fresh; medium to coarse grain size; crinoid stem segments, bryozoans, broken brachiopod plates; 8".
26) Sandstone, very silty; dark greenish gray. 1.5'.
PG. 16
27) Calcarenite, like #25; 2'. Collection 8/6/57/5.
28) Calcaremites like #25 and interbedded brown sandstones like #24. 5 limestone and 5 ss. Total 8'. Brown silicified band at top limestone common.
29) Covered 14'.
30) Limestone, light gray weathering; 1"-3" diameter quartzite and chert pebbles. 20' 1st Leonard limestone. see P.Kings correlation charts.
Collection 8/6/57/6 - I think this float is coming from about the middle of this covered interval, but I can't be sure.
The NE ridge of Dugout Mt. is a maze of little faults and darn peculiar. The tank at the top of the gap is on Wolfcamp conglomerate. The conglomerate here is thin but thicker SW and NE. Could this be a hill in the Gaptank formation? The other explanation is the conglomerate (combined Hess and Wolfcamp) pass into the calcarenite zone of the Hess (Leonard?).
PG. 17
I don't believe that structure; folding and faulting, can by itself explain the position of the strata. The changes in lithology are great enough in other parts of this interval to expect something like this as possible. Aerial photos would be a great help! (see pg. 117).
8/7/57 - The two maps, P.Kings and Guide Book don't agree. I think King's is probably the more accurate, the other is non-field checked photomaps. I think I need Aerial photographs to do much more there (Dugout Mt. area) of significance. {note: illustration followed}.
PG. 18
8/8/57
Collection 8/8/57/1 - This is a collection from a new road cut through the Tenus about 12 miles east of Marathon. This collection is from a shale interval exposure in an anticline and are older the next collection.
Collection 8/8/57/2 - Same locality as 8/8/57/1, but from a sandstone horizon higher in the section. These are on the west limb of an recumbent anticline and the beds are vertical to slightly overturned. The harder shale were sampled for a representative collection.
Collection 8/8/57/3 Shales from Dimple 1/2 east of 8/8/57/1+2.
Collection 8/8/57/4 - Limestone, from Dimple, location as 8/8/57/3.
Collection 8/8/57/5 - Sandstone from Haymond 1/2 mile east of location 3+4.
PG. 19
Collection 8/8/57/6 - shale, same location as 8/8/57/5/