273 



feet in thickness, which, with a foot of soil, had to be stripped. Ihe lime- 

 stone appeared to be very hard and semi-crystalline in structure. . . . 



"Another exposure visited was on the land of George Shipman. north- 

 east quarter section 15 (7 N., 4 W.), where a quarry has been worked for 

 macadam road material. At this point the blue Huron limestone was ex- 

 posed to a thickness of fifteen to seventeen feet, with four to seven feet of 

 buff Huron sandstone overlying. Sufficient material to cover six miles of 

 road had been secured at this quarry, the supply in sight being practically 

 inexhaustible. 



"The same stone outcrops at many points along Beech Creek, and espe- 

 cially in section 12 (7 N., 4 W.), where it forms part of a great precipice 

 or perpendicular bluff, 120 or more feet in height, the upper portion of 

 which is a massive bed of Mansfield sandstone." 



This latter is evidently the same exposure as that measured by Cox. 



Shannon, in the report on the iron ores of Greene County', cites several 

 Instances of the replacement of limestone by iron as in section 6 below, but 

 does ot discuss the stratigraphy. 



From the foregoing it will be seen that very little work has been done 

 on the stratigraphy or paleontology of the Chester in this area. 



SECTIONS. 



The following sections were obtained along the right of way of the 

 Indianapolis Southern Railway, with the exception of Number IX, which 

 was taken at the locality mentioned by Cox and Blatchley on Beech Creek, 

 being about three-fourths of a mile south of VIII. The sections are shown 

 on the profile. 



I. 5 — Shale, sandy, and soil 15 



4 — Sandstone, soft, reddish 22 



3 — Shale, argillaceous, sandy in places and grading 



into sandstone at bottom 12 



2 — Limestone, upper 2 in. oolitic and very fossiliferous, 

 lower part with very few fossils beside forami- 



nifera 2 



1 — Shale, argillaceous, to track 10-12 



II. 7 — Sandstone, soft, ferruginous, cross-bedded 20 



6 — Limestone, hard, fossiliferous, oolitic in places .... 6 



'Shannon, C. W., 31st Ann. Kept. Ind. Dept. Geol. and Nat. Res., 1906, p. 373. 

 [18—26988] 



