Promoting interest in the geology of Cambridgeshire, the UK and worldwide
MONTHLY TALKS
We have a programme of 10 Monthly talks running from September to June each year, held on the second Monday of every month. All talks (unless specified otherwise) are at 7.30 pm (doors open 7.00 pm). Everyone welcome, free to CGS members, £3 for non members. From September 2022 onwards these will be held in the hall at St Andrew’s Church, Histon.
NEXT TALK
Monday 12th December 2022 (7.00 for) 7.30pm
Paleoclimateology from Snowball Earth to Anthropocene
Dr Colin Summerhayes, Scott Polar Institute
This explains how greenhouse gases and temperatures varied through time, giving us alternating periods of warm ‘greenhouse’ climate and cold ‘icehouse’ climate over the past 800 million years. It explains how it is that Antarctica was once covered by subtropical forests, and why ice sheets did not cover it until 34 million years ago. It also explains the origins of the global Ice Age of the past 2.6 million years, explores the roles of the Sun and of the Earth’s orbit in controlling past climate change, and provides a past natural analog for today’s unnatural global warming. The past is the key to understanding the future..
New Walk Guide published on the Fen Edge Trail
Cambridge: Castle Hill to the Sedgwick Museum
Known for its location on the River Cam and its nearby Chalk hills, Cambridge is still very much a fen edge city. Arriving in Cambridge from the north, along the River Cam, the Trail reaches the distinctive landscape feature of Castle Hill, the site of an early, and highly strategic, settlement that developed to become one of the world’s most iconic cities. This walk takes you down from the hill and across the ancient Magdalene Bridge, before winding along the river valley, past several colleges and providing quintessential views of the ‘Backs’. After passing through the characteristic ‘fens’ that still survive along the Cam, it finishes at the internationally important Sedgwick Museum of Earth Sciences. Guiding you through what is now a mostly hidden landscape, the walk takes you back in time, giving a glimpse into the city’s past and the natural history of the area, from ‘Ice Ages’ to sub-tropical swamps and fenland rivers. You will discover how its natural character still filters through, seen in the riverside meadows, the numerous water channels, the subtle changes in the height of the land and even in the building stones used in many of its famous buildings.
Previous Events
Field Trip Report – Burwell Local Geological Sites
The society organises occasional field trips to view important geological sites within the county and hopefully further afield in post pandemic times. These trips are primarily for our members.
In early summer 2021 we had a popular visit to the Burwell Local Geological Sites and are scheduling some others to East Pit, Cherry Hinton, a walk along the Fen Edge from Swaffham Bulbeck to Reach, a visit to Nine Wells chalk spring and a tour of the building stones of Cambridge city center. These are primarily for the benefit of members: any member wishing to participate should contact us.
A write up for this trip may be found here.
Newsletters
Our October 2022 newsletter is now available to members.
Our previous newsletters are available to everyone (download below). They have plenty of ideas for some virtual geology!
Email updates
Sign up for our email updates to hear about future talks, events and news of our projects.
Contact us
Cambridgeshire Landscapes
Cambridgeshire has a fascinating landscape and an interesting geology. See our Landscapes page for more details and download the excellent leaflet ‘The Mapping of Landscapes, Geology and Soils of Bedfordshire and Cambridgeshire’ by Timothy Farewell, Peter Friend, Martin Whiteley and Joanna Zawadzk.
© Cambridgeshire Geological Society