306 LA TOUCHE : GEOLOGY OF NORTHERN SHAN STATES. 



No beds belonging to the Namyau series have been met with 

 in the hilly country surrounding Loi Ling, but 

 an outlier of red sandstones was noticed to the 

 east of the Namlawng, near the small village of Man-pung in South 

 Hsenwi (I 3) ; and I have already alluded to the occurrence of 

 similar beds at Kehsi Mansam, where a small patch has been 

 preserved by faulting (see above, p. 259). 



In the Southern Shan States Mr. Middlemiss has described, 1 

 under the name of the " Purple Sandstone 



errfshan States? S ° Uth " Zone >" a SerieS ° f beds which 1 haVe no hesi " 

 tation in considering to be the equivalents of 



the Namyau series of the Northern States — an opinion in which 

 Mr. Middlemiss concurred after comparing his specimens with 

 those collected by Mr. Datta and myself. The mode of occurrence 

 of these beds is precisely similar, broad bands of them appearing — 

 " to have been let down by faulting among the limestone zone, or to 

 have been tucked in along certain lines and axes of reversed folds and faults." 



The only difference is the presence, in Mr. Middlemiss' area, 

 of interbedded conglomerates, of considerable 

 Interbedded^ conglo- coa rseness and thickness, apparently at several 

 different horizons ; and of thin seams of coal. 

 From the occurrence of this mineral, Mr. Middlemiss was inclined to 

 consider that the series was of Tertiary age, as coal measures of 

 this age were previously known to occur in the Southern Shan 

 States, 2 and to be contemporaneous with the very similar beds of 

 Kasauli and Murree in the N. W. Himalaya ; but at that time 

 no fossil evidence was forthcoming to give a clue to the age of the 

 series, and as there was no reason to suppose that they were very 

 different in age from the underlying Napeng beds, they were referred 

 doubtfully, with the latter, to the Devonian. 



The fossils collected from this formation have been obtained 

 almost entirely from the bands of limestone 

 Fossil localises. described above. In the course of my trav- 



erse of 1899-1900, I came upon a few fragmentary fossils in the 

 red sandstones near Se-Eng (Se-in) railway station (G 2), between 

 ftsipaw and Lashio, but on revisiting the spot later on I found that, 

 the railway being then under construction, the outcrop had been 



1 General Report, Geol. Surv. Ind., 1890-1000, p. 143. 



2 E. J. Jones, Notes on Upper Burma ; Records, Geol, Surv. Ind., Vol. XX, Pt. 4, 

 p. 177. 



