A CONNECTING LINK BETWEEN THE GEOLOGY OF 

 THE NORTHERN SHAN STATES AND YUNNAN 



M. H. LOVEMAN 



New York City 



T. H. D. La Touche has described in detail the geology of the 

 Northern Shan States west of the Salween River and up to lati- 

 tude 23° north/ J. Coggin Brown has at one point extended this 

 work farther north, having thoroughly mapped the section between 

 longitudes 97° 00' and 97° 30' and extending north to latitude 

 23° 15'.^ But beyond this area north to the border of Yunnan 

 the ground has not been studied by the Geological Survey of 

 India. North of the border in Yunnan the broader details of 

 the geological structure have again been studied and mapped by 

 J. Coggin Brown and made available in various survey reports.^ 



During the years 191 7-18 the writer and several others, while 

 doing exploration work for the Burma Mines, Limited, were enabled 

 to take rough geological notes covering the unmapped area described 

 above. By means of this work, as is shown on the accompanying 

 map, the gap between the area in the South mapped by La Touche 

 and Coggin Brown and that in Yunnan by Coggin Brown is 

 partially filled in. 



On the whole the section offers no points of marked difference 

 from the areas to the south and north. Some slight differences 

 between formations in Yunnan and the portions of the Northern 

 Shan States familiar to him kept Coggin Brown from making definite 



^ T. H. D. La Touche, "Geology of the Northern Shan States, "Memoirs of the 

 Geol. Surv. of India, XXXIX, Part 2. 



^ J. Coggin Brown, " Geology and Ore Deposits of the Bawdwin Mines, " Records, 

 Geol. Surv. of India, XLVIII, Part 3. 



3 J. Coggin Br "vn, " Contributions to the Geology of the Province of Yunnan 

 in Western China: I, The Bhamo-Teng-Yueh Area," Records, Geol. Surv. of India, 

 XLIII, Part 3, and other articles in the same series. 



204. 



