MEMOIRS 



OF 



THE GEOLOGICAL SURVEY OF INDIA. 



L — The Gold-fields of Wainad, by H. H. Hayden, 

 B.A., B.E., F.G.S., Officiating Deputy Superintendent 

 Geological Survey of India, and F. H. Hatch, Ph.D., 

 F.G.S., Assoc, yi. Inst. C.E., Mining Specialist 

 Geological Survey of India. (With Plates I to VIL) 



contents. 



Part L— H. H. Hayden: Historical, geological and economic aspects. 



A. — Introduction. 



A brief historical sketch of the gold mines. 



B. — Geological Features. 



i. Gneiss. 



2. Charnockite. 



3,. Dharwars. 



4. Intrusives other than the Charnockile,. 



a. Older basic. 



b. Younger basic. 



c. Biotite gneiss. 



d. Pegmatite veins. 



C — The Quartz Reefs. 



tch. : The Alpha and Ph 

 id. 



b ( i ), 



Part II. — F. H. Hatch : The Alpha and Phoenix mines in south-ease 

 Wainad. 



