| Unit No. |
Description |
Thickness |
|
17
|
Limestone - very light gray (N8) to white (N9). Weathers to a cusped or cavernous mottled white and light gray and internally is relatively porous and soft. Contains hor corals, crinoid stems and Cryptozoan in a sparsely to profusely Osagia algae matrix. (top of hill-end section)
|
3 ft.
|
|
16
|
Limestone - medium light gray (N6) fresh and yellowish gray (5Y7/2) to very pale orange (10YR8/2) weathered that is seamed very abundantly with thin dark sinuous algae Marksia. Locally the Marksia make up almost the entire roack and then they resemble Cryptozoans. the uppermost 0.3 ft. is an Osagia limestone entireley with some crinoid and brachiopod fragments. A slope that appears to represent about 1 foot of shale separates the limestone from the limestone below
|
2.7 ft.
|
|
15
|
Covered interval - augered and is very pale orange (10YR8/2)
|
4 ft.
|
|
14
|
Limestone - medium dark gray (N4) fresh and light olive gray (5Y6/1) weathered. Clastic limestone consisting promarily of fairly well sorted fragments of crinoid stems, brachiopods, ramose bryozoans, and Osagia or oolitic pellets about 1/32 in. in size. Larger fragements common locally. Weathers to massive 2 ft. beds locally and top usually forms bench.
|
3.8 ft.
|
|
13
|
Limestone - yellowish gray (5Y8/1) and medium dark gray (N4) mottled, dense, hard. Many crinoid stem fragments in a matrix of very fine (1/32 - 1/16 in.) Osagia or oolites. Limonite angular areas common. Irregularly bedded
|
33 ft.
|
|
12
|
Limestone - medium gray (N5) on fresh and weather surfaces. Contains many 1/4 to 1/2 inch angular bodies of limonitic material which have breccia appearance. Matrix is dense. No Girty* ocoelia or Heliospongia noted. Cryptozoan and many crinoid remains commonest fossils
|
30 ft.
|
|
11
|
Limestone - medium gray (N6) with limonite stains fresh, and pale yellowish orange (10YR8/6) weathered. Very impure. Weathers either into small rounded fragments or 1 ft. wide slabs. Osagia profuse in lower part, less so upward. Fossils include Osagia, Girtyocoelia, Heliospongia, Derbyia, Neospirifer, Puncto spirifer, Composita, many types of crinoid stems, plates and caps, fenestrate bryozoans. Many shaly streaks trhoughout the limestone from which the fossils weather.
|
26.2 ft.
|
|
10
|
Shale - light olive gray (5Y6/1), poorly bedded and very fossiliferous. Most abundant are crinoid stems, plates and spines. Girtyocoelia, Heliospongia, Encrusting bryozoans, Composita, Derbyia, Neospirifer, Puntospirifer. This is the thickest I have seen this shale. It contains three 0.4 to 0.7 fot thick nodular limestone beds within it. These beds are very fossiliferous and weather to rounded 0.1 ft. fragments studded with fossils of the same varieties as listed above in the shale. Color of limestone is pale yellowish orange (10YR8/6) on surface.
|
20.2 ft.
|
|
9
|
Limestone - medium gray (N6) with limonite stains, hard in upper half but lower half weathers into 1/2 inch nodular masses which result as fossil fragments and individual overgrown Osagia. This limestone is dominantly an Osagia limestone but contains also abundant brachiopod fragments (Neospirifer Hustedia, Composita, Derbyia, fenestrate bryozoans, Girtyocoelia and Heliospongia, and very abundant crinoid fragments
|
1.4 ft.
|
|
8
|
Shale - yellowish gray (5Y7/2) to light olive gray (5Y6/1) very slightly silty, fissile, unfossiliferous. Has a few ironstone or iron-rich layers near the top.
|
25.7 ft.
|
|
7
|
Limestone - concretionary band, pale yellowish brown (10YR5/4) Unfossiliferous
|
0.5 ft.
|
|
6
|
Shale - slightly silty, yellowsh gray (5Y7/2), weathers into flat plates 1 in. x 1/8 - 1/16 inches
|
2.2 ft.
|
|
5
|
Limestone - concretionary band, concretions 5 - 10 inches thick, pale yellowish brown (10YR5/4) (fresh surface), yellowish orange (10YR7/6) on weathered surface. Unfossiliferous
|
0.7 ft.
|
|
4
|
Shale - very pale orange (10YR8/2) to moderate yellowish brown (10YR5/4). Slightly calcareous
|
1 ft.
|
|
3
|
Covered interval - apparently all shale
|
44 ft.
|
|
2
|
Limestone - light gray (N7) dense, hard, moderately fossiliferous. Fossils consist of Cryptozoans, crinoid stems and plates, horn corals, ramose bryozoans, and a few fenestrate bryozoans and Osagia. The upper 0.3 ft. contains abundant Osagia and crinoid fragments and a few horn corals and bellerophontids. Nothing else noted. Weathers into 1/5 in. claggy beds. At junction of K-39 and US75 limestone is clayey and hard and weathers into 0.1 to 0.2 ft. hard, vertically jointed beds. Contains Marksia and Neospirifer. (measuring west on K-39)
|
|
|
1
|
Sandstone - (or sandy limestone) weathers very pale orange (10YR8/2) but is grayish red (10R4/2) on fresh surface. Fine mica flakes moderately abundant, fizzes profusely with acid on fresh surfaces but not on weathered faces. Sand grains very fine to fine, well sorted locally, angular to subangular. Unfossiliferous except for carbonized wood locally abundant anf worm tracks. bedding surfaces poor and irregular. No well-defined cross bedding or ripple marks. clayey zone near center of exposure weathers inward and breaks into 0.5 inch fragments. Uppermost 0.2 ft. is micaceous and very fossiliferous. The fossils consist mainly of small fragments of crinoid stems, ramose bryozoans, and brachiopods(Linoproductus? and Neospifer), and horn corals
|
2 ft.
|
