62 COGGIN BROWN : MINES & MINERAL RESOURCES OF YUNNAN 



Locality. 



Nan Tien (1) . 



Nan Tien (2) . 



Tang clii ( Eastern 



Yunnan). 

 Northern Shan States 



Mi-la-ti(l) 





, 



Mi-la-ti (2) 





. 



Pou-chao-pa 



(1) 



>> j) 



99 



(2) 



»> >? 



99 



(3) 



99 »> 



99 



(4) 



)? 99 



» 



(5) 



Tang-chi 





• 



Mois- 

 ture. 



1(5-5 

 15-22 

 33-05 

 10-78 



Volatile 

 mutter. 



39-05 

 28-94 

 34-07 

 35-72 



17-20 

 16-20 



30-25 



45-00 

 12-75 

 12-00 

 19-33 

 10-00 



29-20 



31-30 

 3115 



34-26 



3400 

 24-00 

 5200 



Fixed 

 carbon. 



22-58 

 18-08 

 24-27 

 32-85 



38-20 



32-50 

 20-00 

 24-00 



10-50 

 17-50 

 50-23 



27-00 



Ash. 



21-87 

 37-76 



8-01 

 13-28 



38-20 



20-00 

 1200 

 31 00 

 30-50 

 30-50 

 0-44 

 5-00 



< 



Does not coke, ash 

 dark brown. 



Does not coke, ash 

 dark brown. 



Does not coke, ash 

 light brown. 



.M.an of 29 assays 

 from various locali- 

 ties, quoted by La 

 Touche. 



Lignites from Eastern 

 Yunnan. Analyses 

 from Lantenois, 

 none of these yields 

 coke. Tang-chi is a 

 French analysis of 

 same material, 



sliown in line 3. 

 The specimen from 

 P o u-c h a 0-p a, 

 (No. 5), gave a 

 calorific power of 

 3,400 calorics 



(Berthier's method). 



True Coal. 



In the report of the Lyons Mission both Rocher and Duclos 

 draw attention to the occurrence of coal in Yunnan ; but Leclere 

 established the existence of two coal-bearing horizons of Palaeozoic 

 and Mesozoic age respectively, though his estimates of the quan- 

 tities available have proved to be very much exaggerated in the 

 light of more recent knowledge. These horizons he regarded as 

 belonging to (1) beds of Carboniferous age below the Productus 

 Limestone, and (2) the Rhaotic. Lantenois attributed the deposits 

 he examined to (1) the Carboniferous, and (2) the Trias or Rhsetic. 

 Deprat has recently worked out the stratigraphy of the coal-bearing 

 rocks and has concluded that coal occurs in the following beds in 

 Yunnan : — 



Upper Trias 

 Middle Trias ' . 

 Lower middle Trias 

 Lower Trias 



Moscoviau 



Upper Noric sandstones. 



Sandstones with Myophoria inccquicoslata, 



Coarse sandstones. 



Psam mites 

 ^ Limestones with tipirifcr mosqacmis. 

 C Upper rod sandstones. 



