Upcoming talks and links to past talks

Past talks on TVGS YouTube channel

The talk on the 22nd April was the last of the 2023-24 season.

Our thanks to Kay for organising such an excellent series of talks
and her continued work in aquiring speakers for the 2024-25 season
which will commence in September.

Talks take place in Martley Memorial Hall (MMH – postcode WR6 6PE) unless otherwise indicated.
If a talk will take place by Zoom a link will be displayed just before the talk is delivered.

Talks for 2024-25 season


Talks in 2023-24 season

25 September 2023
Dr Alan Richardson, BCGS
“Back to Basics - Can New Geological Discoveries Still Be Made With Hammer and Handlens?” This was a shorter talk than usual, followed by a discussion of future of TVGS. On display was the amazing Martley geology along with stunning minerals showcased by Margaret Rodway.
27 November 2023
Pof Stuart Robinson University of Oxford
“Geological perspectives on climate change: from our local rocks to the IPCC” Abstract: “It has long been recognised by geologists that Earth's climate has changed over timescales of thousands to millions of years. Understanding the record and drivers of these past changes informs our knowledge of the environmental history and biotic evolution of our planet but also provides insights into ongoing, and future, anthropogenically-forced, climate change. Critically, the range of past climate states represented in the geological record allow us to probe the major controls and mechanisms that affect climate over a range of atmospheric CO2 levels. This allows us to offer perspectives on Earth system variables that are critical to predicting future climate change, such as climate sensitivity to CO2 (the amount of global warming that will occur in response to a doubling of atmospheric CO2). This talk will explore some of the ways that geologists reconstruct past climates and discuss examples of how the geological past can contribute to predictions of the future.”
22 January 2024
Prof James Rose, Royal Holloway University
“The earliest Humans in the British Isles - the geological context” This lecture examines the geological evidence for the discovery of artefacts that demonstrate the presence of early human beings in Britain around 1 million years ago. Attention will be given to the landscape at the time, which was before lowland glaciation and the separation of Britain from the continent. The landscape on which these people lived involved major rivers draining from the west Midlands to the North Sea, and was home to a large fauna including elephants and hippopotamus. The lecture will show how the evidence was discovered, how the climate was determined and how the sites were dated. An opportunity will be provided to examine some of the evidence used in the research.
26 February 2024
Dr Thomas Jones, Lancaster University
"Pulling apart magma and the associated control on eruption style." The breaking apart of magma into fragments is intimately related to the eruptive style and thus the nature and footprint of volcanic hazards. Basaltic magmas, like those found in Hawaii and Iceland, do not fragment in a brittle manner, rather they break apart due to ductile processes. We currently lack models and fragmentation criteria to explain this ductile fragmentation and cannot predict the sizes and shapes of the resulting fragments. In this talk I will highlight some of the field, laboratory, and numerical work that we have conducted to unravel ductile fragmentation processes in basaltic systems.
25 March 2024
TVGS President and University of Birmingham
"Scotland's Greatest Ice Age" The Port Askaig Formation were the first Precambrian rocks interpreted as glacial in origin, anywhere in the world. Now we know that Neoproterozoic glaciation was global in distribution. The exposures of the Port Askaig Formation are also the best permanent exposures of glacigenic deposits of any age in the British Isles and have attracted much international interest. Over a decade of study by an interdisciplinary team have led to many new insights that will be presented in a Memoir of the Geological Society of London. There is an informal proposal that the base of the Cryogenian geological System should be located here on the Garvellach Islands of western Scotland. Ian Fairchild’s contributions to Neoproterozoic geology have focused mainly on Svalbard and Greenland, as well as Scotland. In relation to the Port Askaig rocks he has sought to understand the association of dolomite with glacigenic facies and the significance of the glacial record both on the Garvellachs and the Isle of Islay.
22 April 2024
Tim Carter
"Malvern Rocks: geology in a Victorian health resort." The study of geological understanding, and associated controversies, in the Malverns provide a a microcosm of the development of wider geological knowledge during the nineteenth century. This is enriched both by the characters of the people involved and by the way in which rocks and fossils became a part of the “Malvern experience’ for visitors. My talk is based on a field weekend I organised for the national History of Geology Group in 2022 and the handbook for participants.

Previous talks in 2022-23 season

26 September 2022
24 October 2022
28 November 2022
23 January 2023
27 February 2023
27 March 2023
22 May 2023
Carl Stevenson, Birmingham University
Stephen Kershaw, Brunel University
Dr Susan Marriott, Bristol University
Mr David M Hall, SulGeology Ltd
Tim Atkinson, University College London
Prof. Ian Fairchild, University of Birmingham
Dr Simon M Drake, Birbeck College
Demonstration of the use of a drone to help log the geology of a local exposure. Carl went to a local site to fly his drone then went back to Martley Memorial Hall to see the results of some of his work and after that, there was a talk by Prof. Ian Fairchild on the Birmingham Erratics, along with a glass of wine and access to the library.
"Reefs and Microbiolites" Click the 'Refs.' button to download a Word document of links relating to his talk. The 'Web' button will take you to his website.
“Old Red Sandstone rivers and floodplains: processes, palaeosols and trace fossils"
”The Geology of Yemen: An Overview". The content of the talk is available via the 3 PDF links - 1 Geography - 2 Geology - 3 Resources.
"Sand Grains on Speed - radioactive particles in the sea off the north coast of Scotland"
"An update on the Anthropocene"
Volcanism in Skye

Scotland’s Greatest Ice Age | Talk by Ian Fairchild | March 2024

Apologies, the audio was lost for a  period during the video, but you still have the slides and Ian in animated enthusiasm.

A rock will appear on the screen at one point, this is the Plesiosaur vertebrae presented by Tim Carter in the proceeding Rock of the Month talk.




Making mountains out of microbes: stromatolites
Ian Fairchild, Teme Valley Geological Society, January 2022

Tectonics and magmatic structures in the West Midlands
Dr Carl Stevenson, University of Birmingham, February 2022

Sedgwick’s ‘Great Dislocation’ revisited: the Dent Fault, NW England
Nigel Woodcock, University of Cambridge, April 2022

Ice Age ponds and glacial landscapes of western Herefordshire
Ian Fairchild, January 2021