A full programme of visits to outstanding geological sites

Oxford Geology Group's field meeting programme is pretty exceptional.  We deliver excursions from Oxford, by minibus, pretty much all year round to fascinating field localities throughout southern England and South Wales.  The field meetings are led by local experts.

The OGG Field Programme is co-ordinated by Paul-Austin Sargent.  You can contact Paul via chairman@ogg.rocks


Mole Gap

March 21, 2020

The source of the River Mole, a tributary of the Thames, can be found not far from Gatwick Airport and flows more or less northward joined by a number of small tributaries. At Sidlow Bridge it alters course towards the west before swinging north near Dorking before it cuts through the North Downs through the eponymous Gap.


This walk, through a section of the Mole Gap, will help you to understand the geological and geomorphological history of this stretch of the river.

The Ercall

March 21, 2020

The Ercall is a hidden gem of Earth history. Standing at the bottom of the quarries you can see an obvious change in the rock, from a bright pink mass to pale grey layers. This change is internationally famous amongst geologists as it marks the change between the Precambrian, where there was very little life, and the Cambrian, where life suddenly exploded in lots of different varieties.

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1. All participants of OGG Field Meetings are expected to read and agree to abide by OGG Policy Papers P1 & P2.



2. All participants of OGG Field Meetings will be required to sign to say that they have read and understood the risk assessment document for the trip when they join the minibus.

3. Fees for field meetings are not refundable.