﻿Vol. 64.] GEOLOGY OF BURMA. 605 



lithological character of the rocks of that district, but wrongly 

 assigns a Cretaceous age to the Miocene coals of the Upper Chindwin, 

 on the ground of the occurrence in them of fossil resin. In the 

 same paper the Tertiary coals and lignite of the region south of 

 Mandalay and in the Shan Hills west of Yamethin are described ; 

 while Dr. Noetling's report of 1891 ^ points out the interesting fact 

 that Miocene coal is found only in the north-east-to-south-west 

 valleys of the Shan Plateau, which tableland is formed of Palaeozoic 

 and metamorphic rocks. Lastly, the same author in his papers of 

 1893 ^ and 1891: ^ indicates the presence of Miocene rocks in the 

 far north (amber-mines) and near Wuntho. 



Passing to the review of work subsequent to the 1895 summary, 

 we have the late G. E. Grimes's paper on the geology of the 

 Yenangyat oilfield, and of Gwegyo and other localities in the 

 Myingyan district.^ Dr. Ncetling's description of the Miocene 

 fossils of Burma was published in 1901 ', and has become a classic 

 in Burmese geology. In 1906, Mr. G. H. Tipper, in a preliminary 

 note on the Trias of Lower Burma,^ refers to specimens of Halohia 

 Loynmeli, Wissm., found in Theobald's collections, which were labelled 

 as coming from the Karenni, pointing to the occurrence of Triassic 

 rocks in the east of Lower Burma. He here notes that the 

 Trias of the Arakan Yoma is of less extent than was indicated by 

 Theobald in 1873. In the following year the same writer published 

 a further note"^ showing the complexity of the Axial Group, which 

 he divides into (1) Upper Axials, including Cardita-Beds [Creta- 

 ceous], //aZo5{a-Limestones [Trias], and shales, sandstones, and 

 grits [Trias ?] ; and (2) Lower Axials, consisting of [unfossiliferous] 

 flaggy shales and sandstones. 



In 1906, Mr. E,. D. Oldham also published a paper on the ex- 

 plosion-craters of the Lower Chindwin district, west of Monywa,^ 

 these being identical with the volcanic hills referred to by Jones 

 in 1887 ^ as an extension of the line of vulcanism running north 

 and south through Narkondam and ' Paopadaung.' In 1906 also, 

 Mr. E. H. Pascoo published accounts ^° of the stratigraphy of a 

 Miocene area east-north-east of Kabat in lat. 21° 4' N., long. 

 ^5° 20' 30" E., and of that of Gwegyo, with a later note'" in the 

 following year on some fossiliferous lenticular marine limestones 

 exposed in the Yenangyoung Miocene area in the ' Yenangyoung 

 Stage,' the fossils found here prior to this time being chiefly derived 

 from the lower division or ' Promeian ' of Dr. Noetling. 



^ ' Report on the Coalfields in the Northern Shan States ' Rec. Geol. Surv. 

 India, Tol. xxiv, p. 99. 



2 ' On the Occurrence of Burmite, &c.' Ibid. vol. xxvi, pt. i, p. 31. 

 ^ ' Note on the Geology of Wuntho ' Ibid. vol. xxvii, pt. iv, p. 115. 

 ^ Mem. Geol. Surv. India, vol. xxviii, pt. i (1898) p. 30. 



PalaBontologia Indica (Mem. Geol. Surv, India) n. s. vol. i, no. 3. 

 ^ Rec. Geol. Surv. India, vol. xxxiv, p. 134. 



7 Ibid. vol. XXXV (1907) p. 119. 



8 Ibid. vol. xxxiv, p. J137. 



9 Ibid. vol. XX, pp. 176-77. 



10 Ibid. vol. xxxiv, p. 242. 



11 /6i(^. vol XXXV (1907) p. 120. 



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