COAL 



(55 







V 



Lower Triassic Coal. 



The Lower Triassic beds of the region between Mi-lc Hsien (lat. 

 24° 23' : long. 103° 27') and Tou-tzu, forty five miles further to the 

 north-east, contain some of the best coal deposits in Yunnan whether 

 regarded from the point of view of quality or quantity. It is unfor- 

 tunate that their minimum distance of 2 or 3 days' journey from 

 the railway prevents their scientific exploitation. 



These deposits were first examined by Connillon who came to 



the conclusion that only one seam, varying in 

 thickness from 0-8 to 1-5 metres, existed. But 

 Deprat has shown that this is not the case ; 

 thus between Je-shui-tang and Ho-kiou there are four. The seams 

 are actively exploited by the Chinese and the coal is made into 

 coke for domestic purposes. 



In every occurrence this coal is bright, generally pure, free 

 from slialy partings and only contains a little pyrites. It is not 

 as fragmentary as the Moscovian coals are and many of the Chinese 

 mines yield large-sized material. 



The following analyses are from various sources : — 



Coal-seams between 

 Tou-t/.u and Mi-lS. 



District- 



Locality. 



Moisture. 



Volatile 



matter. 



Ash. 



Caloriiic 

 value. 



Authority. 



f 



Mi-si-sao 



0-80 



12'<H> 



32-20 





Connillon and 



Mi-le . . A 













Lantenois. 





l.ao-souu-chht 



Mm 



13-00 



20-50 



5, 024 



Do. 



( 



I-wi-chao 



0*70 



19-70 



14*00 



0,098 



Do. 





Tsin-si-kou (1) 



L-40 



'Jil-^n 



14-50 



. . 



Do. 



Between 10-16 ancW 



Tsin-si-kou (*J) 



MM) 



23*80 



12*40 



5,064 



Do. 



Tou-tza. 



Pu-chiao 



0*60 



22*60 



9'90 



. . 



Dm. 



1 



Sai-kao . 



•j:i;» 



12*70 



71*80 



1,226 



Do. 



Tou-tza . 



Tou-tza . 



l-oo 



17-40 



8-00 



6,470 



Do. 



Tou-tza . 



Tou-tza . 



0*96 



10-75 



7-50 



8,010 



Monori. 



Tou-tza . 



Tou-tza . 



1-80 



15-00 



10-00 



7,500 



Lecl6re. 



Mi-lc 



Near Jcshui-tang 



;J7 



•00 



9-54 





Do. 



These analyses are compared by Lantenois with those of the 

 Hongay briquette and the Miike coal of Japan. 



Locality 



Hongay briquette 



Miikc (Japan) 



Moisture, 



2-20 



Volatile 

 matter. 



1-20 



1520 



37-10 



Fixed 

 carbon. 



6-00 



Ash 



6.682 



12-70 5,838 



