146 



THE GEOLOGY OF THE PERMO-CARBONIFEROUS 



SYSTEM IN THE GLENDONBROOK DISTRICT, 



NEAR SINGLETON, N.S.W. 



By A. B. Walkom, B.Sc, Linnean Macleay Fellow of the 

 Society in Geology. 



Page. 



Previous literature ... ... ... ... ... ... 146 



Physiography, etc. ... ... ... ... .. ... 147 



General Geology 147 



(A) Carboniferous — 147 



Webber's Creek Series ... ... ... ... ... 148 



Tangorin Series ... 150 



(B)Permo-Carboniferous — 151 



(a) The Cranky Corner Basin... ... ... ... 151 



(6) Permo-Carboniferous west of Elderslee fault ... 156 



Faulting ,_ 157 



Summary, etc 159 



(Plate xiv., and four text-figures.) 



The district treated of in this paper, lies from 5 to 15 miles E. by 

 N. from Singleton. It contains two units of Permo-Carboniferons 

 rocks, namely, a small basin about 2 miles N.E. of Mt. Tangorin, 

 with a diameter of approximately 3 miles; and the northward 

 extension, from the Hunter River District, of the Upper Coal- 

 Measures and Upper Marine Series along Glendon Brook and 

 Westbrook Creek. 



Previous Literature. — In his memoir on "The Geology of the 

 Hunter River Coal Measures," Professor David* has described the 

 outcrop of rocks belonging to the Lower Marine Series and Greta 

 Coal-Measures in Parishes of Tangorin and Stanhope, and has 

 indicated some of the outcrops on a sketch-map. 



•Mem. Geol. Surv. N. S. Wales, Geology, No.4, 1907, pp. 188-189. 



