26 STEVENSON— INTERRELATIONS OF FOSSIL FUELS. 



localities ; that the coal seams are distinctly lenticular in some of the 

 important districts, and that the coal is caking at some places, but 

 non-caking at others. 



The Wengener beds are at base of the Keuper and rest on the 

 Muschelkalk. Keyserling*' found coal within these beds, west from 

 Cordeville Valley on the southeasterly slope of ]\It. Cordai in south 

 Tyrol. The rocks are alternating tuff sandstones, red, green and 

 brown clays and marls, interrupted by beds of limestone. All yield 

 so readily to the weather that a detailed section cannot be made. 

 The Hauptflotz, locally regarded as " workable," is from 4 to 5 deci- 

 meters thick and is well exposed in the bed of a stream, where it 

 rests on dark limestone; elsewhere, it is frequently enclosed in clay 

 and sandstone. The coal is laminated, some of it resembling brown 

 coal but other portions are much like stone coal. The transforma- 

 tion is so far advanced that no trace of organic structure can be 

 recognized by the naked eye, but the mode of occurrence convinced 

 the author that it was derived from water-loving plants. The quan- 

 tity of pyrite is remarkable. Coal rarely occurs at this horizon. 



The Lunzer horizon was recognized by Lipoid^® in Carniola 

 (Krain) who saw near Idria coaly shale with streaks of coal, but 

 he could discover no definite seams. 



Hungary. — Hantken^^ reports that in the Fiinfkirchen region of 

 Hungary a sandstone formation, 620 to 950 meters thick, underlies 

 the Liassic coal complex conformably. Its coals appear to be local 

 and in most cases they are too thin to be mined. Fossils are not 

 abundant; at one locality, Zamites, Palissya and Thaumatopteris 

 have been collected; another yielded Cardinia and Acrodus. This 

 assemblage is accepted as evidence that the mass is of Rhsetic age. 



United States. — Triassic deposits of the Atlantic border extend 

 in detached areas from Massachusetts to North Carolina. No coal 

 of economic importance has been discovered north from Virginia, 

 though thin streaks have been observed in Massachusetts, Rhode 



^'^ H. G. Keyserling, " Ueber ein Kohlenvorkommen in den Wengener 

 Schichten der Sudtiroler Trias," Verh. k. k. Gcol. Reichs., Jahrg. 1902, pp. 

 57-61. 



38 M. V. Lipoid, Jahrb. k. k. Gcol. Reichs., Band 24, 1874, p. 445. 



39 M. Hantken, " Die Kohlenflotzen, etc.," pp. 104, 105. 



