ALLEGHENY AND CONEMAUGH IN ANTHRACITE FIELDS 227 



Sandstone predominates in the sections, though thick beds of shale are 

 not wanting. Near Pittston and Wyoming the interval between Eed Ash 

 and Checker is filled with sandstone or with clay and sandstone, there 

 being no coarse material aside from some thin streaks of conglomerate 

 near Wyoming; but a conglomerate 18 to 42 feet thick overlies the 

 Checker. Near Luzerne some sections show a variable conglomerate 

 above the Boss, but for the most part there seem to be only sandstone 

 and shale up to 520 feet above the Eed Ash. Southeast wardly, however, 

 near Wilkesbarre and thence toward the easterly edge of the field con- 

 glomerate appears in many sections between the Red. Ash and the Balti- 

 more, between Baltimore and Hillman, as well as above the last bed, and 

 the conglomerates are thick, 10 to 130 feet. In some records no con- 

 glomerate is noted, but in all the deposits are coarse and there is little 

 shale. Near Plymouth one record gives 86 feet of conglomerate between 

 Red Ash and Ross, but other records, extending 800 to 1,300 feet above 

 the Red Ash, show no conglomerate, while shales or clays make up nearly 

 half the mass. Near Ashley and Sugar Notch, southeast from Plymouth 

 and toward the easterly border, conglomerate is reported occasionally, 

 but not as in the Wilkesbarre area on this side of the field, and the in- 

 terval, Red Ash to Baltimore, is filled usually with sandstone, while 

 shales become abundant higher up in the column. 



Conglomerate appears between Red Ash and the place of the Baltimore 

 near Nanticoke and Glen Lyon, at the southern end of the field, some- 

 times resting on the Red Ash, and in one case very near the "Bennett." 

 Still, many records show only sandstones in this interval. Deposits are 

 finer above the place of the Baltimore, and there is much shale. 



Limestone occurs only in the upper part of the column, and seems to 

 be confined to the Wilkesbarre-Nanticoke region. The first notice of this 

 limestone was by Mr Ashburner, who gave a section which, condensed, 

 is as follows : 



Feet 



1. Slate, thin coals, and sandstone 138 



2. Mill Creek limestone 1 



3. Sandstone 25 



4. Canal limestone 2 



5. Slates, sandstones, and coal beds 134 



6. Limestone 2 



7. Slate, sandstone, conglomerate, coal beds 155 



8. Hillman limestone 3 



9. Slate 10 



10. Hillman coal bed 16 



11. Conglomerate, slates, sandstone, coal beds 341 



12. Coal bed E, Baltimore 16 



13. Sandstones, conglomerates, coal beds 351 



