|
| Unit No. |
Description |
Thickness |
|
28
|
Limestone - this much more overlies units 27 and 26 unless there is a rapid dip change that i don't see
|
11 ft.
|
|
27
|
Limestone - like below but apparently another thick bed
|
4 ft.
|
|
26
|
Limestone - massiv,e single bed, vuggy, cavernous, nearly white in color, much secondary calcite in veinlets, soft punky areas common, Osagia and Marksia prominent locally
|
5.3 ft.
|
|
25
|
Shale - calcareous, apparently unfossiliferous, grayish orange (10YR7/4)
|
0.1 ft.
|
|
24
|
Limestone - about half clay in segregated units separated by Marksia, micaceous and silty, grayish ornage (10YR7/4); occurs in three beds separated by calcareous shale, locally slightly fossiliferous: from bottom 0.3 limestone, 2.4 shale, 0.5 limestone, 1.1 shale, 1.6 limestone; upper limestone is hard and relatively massive, thickens laterally downward to 3.8 ft.
|
5.9 ft.
|
|
23
|
Shale - yellowish gray (5Y7/2), weathered, light gray (N7) fresh, silty micaceous, apparently unfossiliferous
|
0.8 ft.
|
|
22
|
Limestone - very clayey, light bluish gray (5B7/1), nodular, fossiliferous but most fossils have calcite coating that precludes identification, Derbyia, crinoid stems, fusulinids and brittle stars
|
0.9 ft.
|
|
21
|
Shale - silty, yellowsh gray (5Y7/2), contains several thin light bluish gray (5B7/1) siltstones in lower part some having sparse molds of crinoid stems, fusulinids and brittle stars
|
1.1 ft.
|
|
20
|
Slatestone - moderate yellowsh brown (10YR5/4), finely crossbedded and ripple marked, weathers into 2 inch beds
|
0.6 ft.
|
|
19
|
Coverd interval - apparently shale. Cut shows upper ft. to be alternating paper-thin plates, finely micaceous slatestone and shale interbedded. yellowsh gray (5Y7/2)
|
1.9 ft.
|
|
18
|
Slatestone - moderate yellowish brown (10YR5/4) to dark yellowish orange (10YR6/6), micaceous, cross-bedded, ripple marks (trend N40W steep side shows currents from SW), worm tracks
|
0.9 ft.
|
|
17
|
Shale - silty, micaceous, slightly fossiliferous, contains 4 - 5 1/4 - 1/2 inch ripple-marked micaceous limestone beds containing many Osagia beans and fusulinids
|
1.1 ft.
|
|
16
|
Limestone - very light brownish gray (5YR7/1), hard Osagia algae matrix, many small fusulinids and crinoid stems profuse. Laterally Osagia becomes unfossiliferous, finely sandy, and has carbonaceous material and small mica flakes
|
0.4 ft.
|
|
15
|
Limestone - medium dark gray (N4), hard, very fossiliferous, matrix Osagia and small oolites, fusulinids sparse to moderate throughout, crinoid stems, a few brachiopod fragments
|
0.9 ft.
|
|
14
|
Shale - grayish orange (10YR 7/4), very friable and calcareous
|
0.4 ft.
|
|
13
|
Limestone - light olive (5Y6/1), silty or very fine sandy, looks like very fine sized Osagia throughout
|
0.1 ft.
|
|
12
|
Shale - yellowish gray (5Y7/2), calcareous, silty, unfossiliferous
|
0.3 ft.
|
|
11
|
Limestone - pale yellowish brown (10YR6/2), silty to sandy, slightly micaceous, contains a few small shel fragments?
|
0.2 ft.
|
|
10
|
Shale - pale yellowish orange (10YR8/6), silty, unfossiliferous
|
03 ft.
|
|
9
|
Limestone - pale yellowish brown (10YR6/2), sandy (very fine grained quartz), a few carbonaceous fragments and small mica flakes unfossiliferous
|
0.1 ft.
|
|
8
|
Shale - pale yellowish brown (10YR6/2), silty unfossiliferous
|
0.4 ft.
|
|
7
|
Limestone - medium light gray (N6), silty, hard, weathers to single massive bed, unfossiliferous
|
0.9 ft.
|
|
6
|
Slatestone - dark yellowish gray (5Y6/2), finely micaceous, slightly sandy, apparently unfossiliferous
|
5 ft.
|
|
5
|
Shale - yellowish gray (5Y7/2) to grayish yellow (5Y8/4), slightly silty, unfossiliferous except for a few plant fragments on bedding planes, lower part poorly exposed
|
40 ft.
|
|
4
|
Limestone - very impure at base but harder at top, medium gray (N5) fresh and grayish orange (10YR7/4) to very pale orange (10YR8/2) weathered, dense (very fine crystalline) with many coarse calcite areas replacing fossils, very fossiliferous at base, less so at top. Fossils: crinoid remains, Girtyocoelia, Heliospongia, Composita, Hustedia, Juresania, or Dictyoclostus, many small (pinhead size) white hollow bodies (forams?), and locally Osagia and Marksia, horn corals, fenestrate bryozoans, Crurithyris, Neospirifer, encrusting bryozoans, Punctospirifer
|
10 ft.
|
|
3
|
Shale - greenish gray (5GY6/1), calcareous, very fossiliferous. Fossils are contained as single units in the shale (in the lower part especially) but many weather from imputre limestone nodules and nodular beds (1-2 in. thick) throughout the shale. Fossils consist of profuse crinoidal remains, and a few Composita?, Girtyocoelia, Heliospongia, fenestrate bryozoans, Hustedia
|
21 ft.
|
|
2
|
Limestone - hard, vertically jointed N45W, moderate yellowish brown (10YR5/4) to greenish gray (5GY6/1) fresh and grayish orange (10YR7/4 to very pale orange (10YR8/2) weathered, fossiliferous including crinoid stems, Girtyocoelia, Hustedia
|
1.2 ft.
|
|
1
|
Shale - grayish orange (10YR7/4), calcareous
|
0.2 ft.
|
|
