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THE GEOLOGY OF NEWBRIDGE, NEAR BATHURST, 



N. S.W. 



By W. N. Benson, Student at the University of Sydney. 



(Plates xxii.-xxiii.) 



Section i. — Introduction and Previous Literature 

 ii. — Andesites and Asbestos 

 iii. — Granites, Granophyres, and Aplites 

 iv. — Chlorite Schist 



V. — Slates 



vi. — Limestones 



vii. — Economic Minerals ... 



viii. — Summary 



ix. — Conclusion 



i. — Introduction and Previous Literature. 



The village of Newbridge is on the Great Western Railway, 20 

 miles south-west of Bathurst, and 165 from Sydney. It is the 

 outlet of the mines of the Trunkey and Tuena districts, and may 

 become that of the Rockley and Burraga districts. The country 

 described in this paper includes the Parish of Galbraith, in which 

 Newbridge is situated, and the southern portion of the adjoining 

 Parish of Lowry, in which most of the marble occurs; references 

 are also made to the Caloola gold mines, and the copper mines of 

 Belmore and Cow Flat, which are in the Parish of Ponsonby, still 

 further to the east. The country is hilly but not very rough, 

 and is drained by Reedy Creek, George's Plains Creek, and Queen 

 Charlotte Vale into the Macquarie River. 



Five series of rocks are developed in this district : — slates, 

 limestones, chlorite-schist, andesites, and granites; and the mode 

 of occurrence and the description of the varieties of each of these 

 form the subject matter of this paper. 



Very little mention has been made of Newbridge district in 

 scientific literature. The boundaries of its several formations are 



