Image from the Biodiversity Heritage Library.
Contributed by Yale Peabody Museum of Natural History.
| www.biodiversitylibrary.org
Transcription
<-- Neal Ranch Fm. <-- Gaptank Fm. (applied to #9-#12)
PG. 73
Section 26
13) Shale and siltstone (10') green-gray colors, 2, 6" welded siltstone (siliceous)
near top.
14) Sandstone, very fine to fine-grained, siliceous cement. 2'.
15) Shale 9' green-gray "bumpy", mostly covered.
16) Siltstone with siliceous cement, 6" to 2' beds - 2" to 6" shale on silt partings,
buff colored. 11'.
17) Shale (and some siltstone), in beds 6" to 1', siliceous siltstones, in 4" layers
10'. Collection 7/9/57/12.
18) Covered 26'.
19) Siltstone, siliceous buff - [2']
20) Limestone, yellow weathering 3' - brown blotches where there were once
fossils, very silty.
21) Covered 16'.
PG. 74
22) Sandstone, pinkish-brown, well and thinning laminated - calcarenite. 6".
23) Covered 30'
24) Silty, brown-orange weathering, dolostone. 4'. It was fossiliferous.
25) Covered [25' +-], above that Coarse Calcarenite. 40' or more.
Brooks Ranch Mbr. Lenox Hills Fm. <--l<-- Neal Ranch Fm.
PG. 75
Section 27
7/10/57
C. Brooks Ranch SW exposures. Also over the fence on to part of the Neal
Ranch.
The limestone cliffs on the NE part of the Neal Ranch are lithologically
continuous with the interval #3 through #7 of Section 8a. The #9 unit thickens
and thins but seems to be fairly continuous throughout. Section 9 (Sect. 27)(dip
7°-10°) (N) {note: illustration:
bed 1: covered
bed 2: 30'; several yellow-brown weathery ledges - would like to call this
Uddinites
zone based on color and characteristics of the sandstones;
7/10/57/4
bed 3: 15'; gray limestone - very dark brown; 7/10/57/3
bed 4: 18'; covered; some brown-red shale
bed 5: 23'; biohermal and shell hash, gray; 7/10/57/2
bed 6: very fine sandstone with silt 6" greenish-gray
bed 7: 34'; algal limestone bioherm, gray