
[eID Ii OS 
SIGNS USED ON MAPS OF H.M. 
GEOLOGICAL SURVEY 

Signs connected with the Glacial Drift 
C® Roches moutonnées (not striated). 
Roches moutonnées (striated), but direction of ice-flow not 
apparent. 
Roches moutonnées (striated), showing direction of ice- 
flow. 
=e Plane or flat surface (Striated). 
Plane or flat surface (striated), where direction of ice-flow is 
visible. 
Signs connected with Stratification 
-'- Horizontal | >»  Steeply Inclined Strata. 
ee. Vertical | Cleavage. 
> Beds. 
(ongest line 
ane Sinz) | i Anticlinal Axis. 
mA. (Contorted \, General Dip of Undulating 
Beds. 
\ 
Inclined Strata. -. Undulating Strata. 
“ Gently Inclined Strata. | —4— Synclinal Axis. 
Waiennupied EtHes = = = show a doubtful or drift-covered Boundary. 
White Lines, Faults. 
Signs indicating the Ores of the Metals 
© Gold. | X Manganese. 22> Tein 
a Lead. ’ ©. Copper. | ee AINS 
Silver. PV Gh Siront ® Nickel. 

Gold Lines, Mineral Veins. 
[To face page 280. 
