ANTICLINAL FOLDS* 53 



northern part of block C, three- and-a-half miles north of the Yenan- 

 C-Chaung. 



A second place, where the crest of the anticlinal arch rises to a 

 maximum,is in block 58 N of the so-called Yenangyaung oil-field, which 

 is about three miles south of Singu in the Myingyan district. There 

 the first oil sand is exposed, on the north side of Moksoma-kon, at 

 an elevation above the Irrawaddi certainly greater than that of the 

 beds of the Chaungs near Yenangyat, and so the crest of the 

 anticlinal fold of the oil-bearing sandstones is at a somewhat higher 

 level than near Yenangyat. At Yenangyat we know that the oil 

 sands are workable, and as the two places are only a few miles 

 apart and on the same anticline there are strong reasons for re- 

 garding this and the neighbouring blocks, to the north and south, 

 as possibly part of one oil field. Oil is found south at Yenangyaung 

 and north at Yenangyat, and there is absolutely no reason to think 

 that possibly this area is beyond the oil bearing zone, but on the 

 contrary there is strong presumptive evidence that it is within the 

 oil area, and this the presence of a distinct smell of petroleum gas, 

 which comes from the exposure of Prome sandstone, corroborates. 



The third maximum in the height of the crest of the anticline is 

 between Sabe and Gouledaing, about four or five miles north of the 

 demarcated blocks of the Yenangyat oil-field,] and here the first oil 

 sand is at an elevation of 250 feet above the bed of the Chaung, 

 through which the road from Sabe to Gouledaing passes, and conse- 

 quently it is at a considerably higher elevation above the river 

 Irrawaddi, and so it is much higher than the crest of the anticline at 

 Yenangyat. On the outcrop of the first oil sand, on the south side 

 of this ravine, there are several patches of black and burnt earth 

 surrounding small holes in the ground, and the villagers tell me that 

 from these holes last year there issued flames three feet high, which 

 continued to burn for several months. At the time of my visit the 

 ground here was quite hot and there was a strong smell of petroleum 



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