282 



THE IRON ORE DISTRICT OF EAST TEXAS. 



NOTES ON THE STRATIGRAPHY OF NACOGDOCHES COUNTY. 



About thirteen miles southwest of Tirapson and a quarter of a mile north 

 of Fitze Station, on the Houston East and West Texas Railway, in the railway 

 cut, is an exposure showing dislocation in the bed of sandy clay shale. 



The flexure has a dip 20° southeast for forty feet, afterward bending and 

 cutting upward through the soil, indicating motion of the surface with a 

 slide and squeeze. 



About one-eighth of a mile southwest of Fitze Station, in another railway 

 cut, is a second exposure of the same bed showing irregular water erosion. 



N.E. Fig. 23. S.W. 



SECTION ONE-EIGHTH MILE SOUTHWEST OF FITZE STATION, NACOGDOCHES COUNTY. 



A. Soil from mottled clay 2 feet - 



B. Yellow sandy clay 5 feet - 



C. Sandy clay shale to bottom of railway cut 1° feet. 



About two hundred yards north of Fitze Station is a stratum of yellow 

 sand ten feet thick, overlying the long ferruginous geodes described under 

 Iron Ores. This interposition of sand is wanting in most localities, but the 

 general inference from this and other localities where it does exist fixes the 

 horizon of the geodes as underlying the sand, which in some localities has 

 become partly indurated to form the soft sandstone before described as un- 

 derlying the regular iron sandstone. 



Going from Nacogdoches to Melrose, within the southern limits of the 

 former place, is an exposure of drift material by the roadside, consisting of 

 soil, ferruginous sandy clay, iron pebbles, clay, and cross-bedded sand. On 

 the opposite hill just beyond the brick yard, across the little stream, is an 

 exposure of greensand marl. 



