1204 NOTES ON THE GEOLOGY OF BOWNING, N.S.W. 



referring the age of the Bo wiring Beds to the Upper Silurian 

 System. The great development of shale rocks strengthens this 

 conclusion. 



Minerals. — Copper, iron, and lead occur in many places. Copper 

 and lead ores are found in several parts of Limestone Creek ; and 

 small veins of galena are met with in Bowning Creek. A little 

 gold has been obtained from some of the creeks which empty into 

 the Limestone Creek. 



Surface Accumulations. — The alluvial flats along the course of 

 the Bowning and Limestone Creeks are formed of rich black soils. 

 On some of the hills large accumulations of water-worn stones are 

 noticeable. These have resulted from the disintegration of the con- 

 glomerates. Small agates are plentifully distributed among them. 

 The decomposition of the unfossiliferous soft shales in situ has 

 formed considerable beds of clay, while that of the fossiliferous 

 shales has formed very fertile loamy soils. Some of these shales 

 may be found to be of economic value as fertilizers. 



PLATE XXI. 



Ideal Section of Bowning Synclinal Basin. 



(The data for the completion of the eastern portion of the section were 

 obtained from the exposure of the strata in the Sharpening Stone Creek.) 



