SIKANDARMALAI -SITSAYAN. 109 



The series was regarded as Eocene to Oligocene in age, bnt G. E. 

 Pilgrim (Rec, Geol. Surv., Ind., XL, 188, 1910) has shown that the 

 Murree beds, which are equivalent to the Dagshai and Kasauli, 

 averlie the Aquitanian Kuldanas, and are probably Burdigalian 

 and Helvetian (Miocene) in age. The Snbathu beds contain 

 Kirthar (Middle and Upper Lutetian) Niunmulites (E. Vreden- 

 burg, Rec, Geol. Sure, Ind., XXXIV, 177, 1906). Medlicott 

 (Op. tit., 92) considered that a decided break occurred between 

 the Sirinur and the Siwalik series, as they occurred in the type 

 area on opposite sides of the great Sub-Himalayan boundary 

 fault. G. E. Pilgrim however (Rec., Geol. Surv., Ind., XL, 188, 

 1910) records the gradual transition from Murree beds to Lower 

 Siwalik in the Rawalpindi and Jhelum districts and from 

 Kasauli to Nahan (L. Siwalik) in some of the Simla Hill States 

 (Rec, Geol. Sure, Ind,, XLI, 83, 1911). 

 Sironcha sandstones.— Formally introduced by W. King (Rec, Geol. 

 Surv.. Ind., X, 56, 1877) as part of the Gondwana system in the 

 Nizam's dominions and the Central Provinces ; and supposed to 

 correspond to the Golapilly sandstones of the Godavari District. 

 Rejected by Hughes (Rec, Geol. Surv., Ind,, XI, 25, 1878) and 

 eventually admitted by King (Rec, Geol. Surv., Ind,, XIII, 13 — 16, 

 1880) to be probably part of the Kamthis. See also Mem,, Geol. 

 Sun:. Ind., XVIII, 103, 1881. Sironcha (19° 53' ; 80° 2') is a 

 village in the Chanda district, Central Provinces. 

 Sitaparite. — Mineral named by L. L. Fermor (Mem,, Geol. Surv., Ind,, 

 XXXVII, 49, 1909) from" Sitapar (21° 44' ; 78° 56'), Chhindwara 

 District, Central Provinces, where it is found with the manganese- 

 ore deposits. Composition, approximately 9Mn,0.,. 4Fe 2 3 . Mn0 2 . 

 3C'aO. The mineral is bronze-coloured and its crystalline form 

 doubtful. 

 Sitsayan shales. — Shales with subordinate sandstones regarded by 

 W. Theobald (Mem., Geol, Surv., Ind,, X, 269, 1873) as the base 

 of his Pegu system. Found lying unconformably on the 

 XummuUtic rocks in the Prome District (M. Stuart, Rec, Geol. 

 Surv., Ind., XXXVIII, 262, 1910). No fossils are found in these 

 shales, but from their position conformably below the Lower 

 Prome stage they are regarded by M. Stuart (loc tit., 279) as 

 Tongrian, or Lower Oligocene. Named from the village of 

 Sitsayan (18° 54' ; 95° 14') 8| miles above Prome on the 

 Irrawaddy river. 



