﻿THE HELDERBERG INVASION OF THE MANLIUS 



BY 



G. D. Harris 

 SUMMARY OF CONTENTS 



Page 



Introduction 5 



Description of Sections 5-27 



I Union Springs: Eurypterus limestone \ Gyp- 

 sum beds, "Salina" Waterlime, Cobles'kill, 

 Rondout, Manlius .". 5 — 1 1 



II Split Rock 11 



III Manlius : Manlius, Detailed Sections about 



Manlius, Special points to be noticed in the 

 Manlius area 12-14 



IV Perryville: General Section, Detailed sections 



abotit Perryville, Points of special interest in 

 the Perryville area 1 5~ ! 7 



V Oriskany Falls 17-20 



VI Herkimer 21-22 



VII Howe's Cave 22-24 



VIII Helderbergs : General Sections, Special Sec- 

 tions 2 4 _2 5 



General Resume 26-2 7 



I illustrations 



Plates 1. Manlius sections throughout east-cen- 

 tral New York Frontispiece 



2. Geological map of the vicinity of Un- 



ion Springs OpP- P- 6 



3. Sections in the vicinity of Union 



Springs 7 



4. Abandoned gypsum quarry near Hi- 



biscus Point 8 



5. Uppermost Stromatopora bed, Union 



Springs 9 



6. Manlius Stromatopora bed on Tunnel 



Creek 10 



7. Upper quarry at Oriskany Falls ; 



west of the road 20 



8. Fossiliferous Manlius beds, Becker's 



quarry, Schoharie N. Y 23 



9. East escarpment of Helderberg Mts 26 



