WHITE.] COREELATIONS IN THE SOUTHERN FIELD, 807 



The species here associated are all, in g-eneral, typical of the zone 

 of Lvkens coals Nos. 2 and 3. If the horizon of the shales is on either 

 side of this zone it is perhaps slightly higher. It appears most prob- 

 abje. however, that it is near the outcrop of the neighboring coals Nos. 

 '2 and 3, in agreement with the mapping of the latter on mine sheet 

 xvi of the Anthracite Atlas. 



The correlation of the coal mined in the upper Eureka tunnel with 

 Lvkens coal No. -i necessitates a very different structural interpre- 

 tation of the beds. It strongly suggests a strict and regular paral- 

 lelism in the same monocline of the coals in both drifts, in which case 

 the interval between coals 3 and -i, about 250 feet, would be entirely 

 in harmony with the corresponding interval, 245 feet, in the Lincoln 

 mine, about 3 miles to the southwest. The Middle Creek anticline 

 seems to have been either erroneously interpreted on the State mine 

 maps as extending too far westward, or, as is quite possible, wrongly 

 platted to the south of the coals in the upper tunnel instead of to the 

 north. Neither the mine map nor the protile appears to contain evi- 

 dence of importance in contradiction to either alternative. 



5. Valley View colliery ^Kolders Gap. Station 15, PI. CLXXX. At 

 the gap in Bear Mountain, 2 miles north of Brookside, several of the 

 Lvkens coals have been located, one of the upper Lvkens coals being 

 now worked for local use at the Valley View colliery. The position 

 of the developments and the stratigraphic relations of the beds in the 

 north side of the AViconisco Basin in this region are shown in mine 

 sheet xviii. Atlas Southern Anthracite Field, Pt. Ill, and in section 

 26, cross-section sheet xix. Atlas, Pt. VI. The columnar section 

 was described by H. D. Rogers.^ The species from the heav3% «^iidy 

 roof shales of the coal, which is mapped as Lvkens coal No. 2 in the 

 State mine maps, include among others — 



Eremopteris decipiens. Cordaites grandifolius? 



Eremopteris Aldrichi. Cardiocarpon elongatum var. antholith- 



Sphenophyllum bit'urcatum. oides. 



Cordaites Phillipt^i. Cardiocarpon ol)liquuni. 



The flora is unlike the floras found in the roof shales of the lower 

 Lj'kens coals. The distribution of its species is essentially in the Upper 

 Lvkens division, and prevailingly in the zone of Lykens coals Nos. 2 

 and 3, though it appears to lack tlie species specially characteristic of 

 either coal. 



6. Kemhle drift. Station !♦>, PI. CLXXX. The Kemble drift is sit- 

 uated near the western spoon of the Peaked Mountain Basin, on the flrst 

 of the large, shallow, synclinal, westward-projecting lobes of Broad 

 Mountain. Its position and the general geologic environment are 

 shown in mine sheet xiii. Atlas Southern Anthracite Field, Pt. II, and 



1 Geology of Pennsylvania, 1858, Vol. II, Pt. I, p. 190, PI. VIII; Lykens coals correlated, by A. DW. 

 Smith, in Summary Final Report, Second Geological Survey of Pennsylvania, Vol. Ill, Pt. I, j). 2130. 



