Shoalhaven District Geology

  FIELD GEOLOGY OF THE SHOALHAVEN DISTRICT (PART 5) Reminder that all the maps, diagrams etc referred to in the text have been lost. CHAPTER 2 CONTINUED Excursion 2b   Gerringong- Berry  (17 miles)  This excursion deals mainly with the stratigraphy of the Berry Formation and the effects of differing lithology on landforms and soil fertility.  Route: Prince’s Highway from Gerringong to Berry, with diversions to Toolijooa and Foxground.  Gerringong is close to the former centre of Permian volcanic activity. On this excursion, the flows are seen to become thinner and finally vanish while the tuffaceous sediments merge to become one unit, the Broughton Sandstone.  Stop 1. In the road cutting opposite Gerringong station, the Kiama Sandstone is well exposed. It is much the same as the outcrops seen at Kiama and Bombo, but with a higher proportion of pebbles.  Proceed towards  Berry . Outcrops of Kiama Sandstone are seen for the next two miles, at w...

FIELD GEOLOGY OF THE SHOALHAVEN DISTRICT (PART 3) Chapter 1: Introduction .  “ The land near the Sea coast still continues of a moderate height, forming alternately rocky points and Sandy beaches; but inland, between Mount Dromedary and the Pigeon House, are several pretty high Mountains, two only of which we saw but what were covered with Trees, and these lay inland behind the Pigeon House, and are remarkably flat a Top, with Steep rocky clifts all round them. ”  Lieutenant James Cook wrote this on Sunday 22nd April, 1770, as the “Endeavour” passed by the Shoalhaven district of New South Wales. Today, the scene has changed little. However we are now able to explain many of these geological features which were of such interest to Cook.  The Shoalhaven district, by which we mean the coastline from Bateman’s Bay to Kiama and inland for up to 40 miles, is of great interest to geologists. There is a considerable variety of rock types and structures because the edge of the Syd...