TADPATRI— TAWNG-PENG. 115 



more recent than Permian, though on admittedly imperfect 

 evidence (loc. tit., p. 82). The Talchir boulder-beds are corre- 

 lated by Th. Tschernyschew (Rec, Geol. Surv., Ind., XXXI, 

 116, 132, 1904) with Middlle Carboniferous conglomerates of 

 supposed glacial origin on the eastern slopes of the Urals. 

 According to E. Koken (Neues Jahrb. f. Min., 1907, 503), the 

 Talchirs are somewhat younger than the boulder beds of the 

 Punjab Salt Range, which he regards as Permian. For 

 correlation with marine deposits of Kashmir, see Gondwana. 



Tanawal (Tanol) series.— Named by A. B. Wynne (Rec, Geol Surv., 

 Ind., XTI, 122, 1879) from the ancient name of the country in 

 which they are found on the North-West Frontier. The rocks 

 are unfossiliferous, and often partly metamorphosed ; they include 

 conglomerates or boulder beds, and carbonaceous shales, and agree 

 in many respects with the " Carbonaceous " system of the Simla 

 . region. They lie unconformable on the Attock slates and with 

 them form the probable local development of the Purana group. 



Tara sandstone. — The uppermost division of H. J. Carter's " Oolitic 

 series " was named by him from the Tara pass or ghat which leads 

 from the alluvial plain of the Ganges, about 10 miles south-west of 

 Mirzapur, to the sandstone plateair of Bundelkhand (Geol. Papers, 

 1857, 655). This formation was regarded by Carter as equivalent 

 to the " New Red Sandstone" of J. Franklin and V. Jacquemont, 

 and the " Old Red Sandstone " of J. McClelland. The sandstone 

 referred to is that known to the Geological Survey as the Kaimur 

 stage of the Vindhyan system, which is of course much older than 

 the Oolitic. 



Tarcherla sandstones.— Term introduced by W. King (Rec, Geol. 

 Surv., Ind., X, 56, 1877) for sandstones considered to be 

 part of the Kamthis and below the Lingagoodium sandstones. 

 T. W. H. Hughes apparently considered them (loc tit., page 61) to 

 belong to a later series than the Kamthis. Hughes (Rec, Geol. 

 Surv., Ind., XI, 25, 1878) later considers them to be part of the 

 Kamthis. The name was subsequently discarded. 



Tawmawite.— Name proposed by A. W. G. Bleeck (Zeit. Prakt. Geol.. 

 XV, 354; Rec, Geol. Surv., Ind., XXXVI, 269, 1908) for a 

 dark-green chromiferous variety of epidote occurring in jadeite 

 quarries at Tawmaw, Upper Burma. 



Tawng-peng system.— Name proposed by T. H. D. La Touche 

 (Mem., Geol. Surv., Ind., XXXIX, 45, 1913) from the sub 



i 2 



