314 Dr. P. Marshall — Younger Rock Series of New Zealand. 



VI. — The Younger Rock Skkies of Nkw Zealand. 



By Dr. P. Marshall, M.A., D. Sc, F.G.S., Professor of Geology and Mineralogy 

 in the University of Otago, Dunedin, New Zealand. 



IN the December number of the Geological Magazine. 1911, 

 pp. 539-49, appeared an article by Professor James Park, E.G.S., on 

 the Lower Tertiaries and Upper Cretaceous of New Zealand. As the 

 author indicates, this article is largely a criticism of a paper on the 

 the Younger llock Series of New Zealand, written by Mr. li. Speight, 

 Lecturer on Geology, Canterbury College, Mr. C. A. Cotton, Lecturer 

 on Geology, Victoria College, and myself. You will doubtless under- 

 stand from this statement that with the exception of Professor Thomas, 



succession ^ 

 in 

 North 

 Otago. 



Succession 

 in 



North 

 Canterbury. 



Awamoa Beds 



Hutchinson 



Quarry Beds 



Oamaru Stone 

 (Ototara) 



Waireka Tufl 



Greensands 



Concretionary at 



Moeraki 



Quartz Gravels 

 with Coal 



Trias-Jura !> 



Hector — X ■ 



Hutton 



Park - - 



— 1885 and 1899 



- - - 1910 



Greta or Pareora 

 Mt. Brown Beds 



Grey Marls 



Weka Pass Stone 



Amuri Limestone 



Greensands 



Black Grit 

 Grey Sands 



Gravels with Coal 



/\ Trias-Jura ? 

 P.M. 



Fig. 1. Comparison of Correlations of Younger Eocks. 



of Auckland, with whom we liad no opportunity of collaborating, 

 all of those who are at present engaged in teaching geology in the 

 University of New Zealand are co-authors. 



This paper was published in the Transactions of the New Zealand 

 Institute, vol. xliii, p. 378, 1910. The great majority of your 

 readers have, of course, not seen this paper, and are not aware of 

 its main contention, nor of the arguments that were adduced in 

 support of it. This is somewhat to be regretted, and I must therefore 

 ask for your permission to restate tlie gist of these, and also to make 



