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The Geologists' Association @geolassoc.bsky.social · 1d

The talk will also be via Zoom. To attend the meeting via Zoom, members and non-members should register in advance. Members will receive a link for registration by email. Non-members should telephone 020 7434 9298 or email the Secretary ([email protected]) for details.

The Geologists' Association @geolassoc.bsky.social · 1d

Non-members are always welcome to attend for an introductory visit arranged by phoning (020 7434 9298) or emailing ([email protected]) the Executive Secretary to book a place. The GA reserve the right to request a small charge for returning non-member attendance.

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The Geologists' Association @geolassoc.bsky.social · 1d

Join us at 18.00 BST on Friday 10th October at Burlington House in London for our next free talk - Thames Through Time: Cornish Flavour by Ian Mercer

This will be a hybrid event: in-person and online via Zoom. For those attending in person, tea will be served in the Lower Library from 17.30 BST

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The Geologists' Association @geolassoc.bsky.social · 2d

The GA 2025 Annual Conference at Keele University is finally over after a weekend full of interesting and varied talks, displays and field trips.

Thank you to NSGGA - North Staffs Group of the Geologists' Association and everyone involved in organising and delivering such a packed programme!

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The Geologists' Association @geolassoc.bsky.social · 5d

Join us tomorrow at @keeleuniversity.bsky.social for our 2025 Conference: The Geology and Natural Resources of North Staffordshire

GA members/affiliates £45, non-members £55, students £10

Just turn up on the day: registration opens 08.30 BST

Full details: geologistsassociation.org.uk/conferences/

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The Geologists' Association @geolassoc.bsky.social · 7d

Honeymoon Bay is a small bay within Coles' Bay, in the Freycinet National Park, Eastern Tasmania. The distinctive red granite is Devonian and about 390 million years old. The colour is due to the large potassium feldspar crystals in the rock, enhanced by the evening sun.

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The Geologists' Association @geolassoc.bsky.social · 7d

Welcome to October 2025 with a colourful image of the granite coastline in eastern Tasmania from the Geologists' Association 2025 Calendar taken by Howard Anderson, which was an entry in the GA 2024 photographic competition.

A rounded, rocky granite surface in shades of oranges and browns is prominent in the foreground of the image. In the background are tall eucalyptus trees beneath a clear, pale blue sky. The steel-grey sea washes directly onto the rocky surface.

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The Geologists' Association @geolassoc.bsky.social · 7d

There's still time to sign up to attend the GA 2025 Conference on Saturday 4th October at Keele University campus

Join us for a full day of talks, posters and displays on the subject: Geology and Natural Resources of North Staffordshire

Book here: geologistsassociation.org.uk/event-bookin...

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The Geologists' Association @geolassoc.bsky.social · 8d

Great photo @hypocentre.bsky.social

Fingers crossed for good weather!

Book your conference/field trip place here: geologistsassociation.org.uk/event-bookin...

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The Geologists' Association @geolassoc.bsky.social · Sep 6

One of our affiliated societies - The Earth Science Teachers' Association is holding their 58th annual conference next weekend at @es-ucl.bsky.social in London. Join them for two days of learning, networking, and fun!

Tickets available here: www.eventbrite.co.uk/e/the-58th-e...

The 58th ESTA Annual Conference

Join us at the 58th ESTA Annual Conference for two days of learning, networking, and fun!

www.eventbrite.co.uk

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The Geologists' Association @geolassoc.bsky.social · Sep 1

A beautiful fossil ammonite preserved in calcite from the cliffs of Lower Lias at Charmouth, near Lyme Regis. It has been prepared from the cement stone nodule in which it was found. These Jurassic fossils are the remains of creatures that were living in a tropical sea 190 million years ago.

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The Geologists' Association @geolassoc.bsky.social · Sep 1

Welcome to September with a close up image from the GA 2025 calendar of a Jurassic ammonite from Charmouth in Dorset, which was taken by Gerald Lucy.

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The Geologists' Association @geolassoc.bsky.social · Aug 26

The programme is taking shape with details of talks now available, including: The Secret Lives of Dinosaurs & The Adventures of a Palaeontologist – with @deanrlomax.bsky.social

The talk will be followed by a Q&A and a book signing with the author and illustrator @bobnichollsart.bsky.social

Front cover of the book 'The Secret Lives of Dinosaurs' written by Dean Lomax and illustrated by Bob Nicholls

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The Geologists' Association @geolassoc.bsky.social · Aug 26

Join us and our colleagues from @rockwatch.bsky.social on Saturday 1st November from 10.30am until 4.30pm at @geolsoc.bsky.social Burlington House in London for the 2025 Festival of Geology - a free event for everyone interested in the story of Earth. Children and families welcome!

Event flier for the 2025 Festival of Geology

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The Geologists' Association @geolassoc.bsky.social · Aug 16

The deadline for entries to the GA 2025 Photo Competition is Friday 22nd August so there's still time to submit up to 3 photos for a chance to win a cash prize!

🥇£150 🥈£75 🥉£50

Email entries to: [email protected]

Full details: geologistsassociation.org.uk/photocomp_en...

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The Geologists' Association @geolassoc.bsky.social · Aug 10

Order yours now - email the SchoolRocks! box co-ordinator, Dr Haydon Bailey at [email protected]

For more information, including an introductory video, visit the Geologists' Association website: geologistsassociation.org.uk/schoolrocks/

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The Geologists' Association @geolassoc.bsky.social · Aug 10

Hire a box for up to 10 weeks with a £40 returnable deposit. All we ask is that you cover the price of the return postage (£14) but we may be able to deliver/collect for free

We are now taking bookings for our Year 3 and Year 6 boxes for the new school year in September 2025

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The Geologists' Association @geolassoc.bsky.social · Aug 10

Our boxes have been designed for the KS2, Yr3 'Rocks & Soils' and Yr6 'Evolution & Inheritance' elements of the National Curriculum

Boxes contain lots of specimens for hands-on learning plus you have access to the teaching plans, learning activities and resources produced by the SchoolRocks! team

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The Geologists' Association @geolassoc.bsky.social · Aug 10

Did you know that the GA have boxes of fossils, rocks and minerals we hire out to UK schools and home educators for the study of the Key Stage 2 earth-science curriculum?

We have reached over 10,000 children across 113 schools and 7 home-educator groups as far afield as Elgin, Pembroke and Somerset

SchoolRocks! workshop fun with a geological timescale and loads of fossils. Photo by St. Mary’s C of E Primary School, Amersham.

The Geologists' Association SchoolRocks! rocks and fossil boxes are supported by Reading Geological Society (RGS), the Building Research Establishment (BRE) and The Open University.

School pupils examining replica fossil horses hooves from the SchoolRocks! Year 6 Evolution box. Photo by Holy Trinity C of E School, Marlow

The SchoolRocks! Year 3 box. Each box contains child hand-sized specimens of igneous, sedimentary and metamorphic rocks. There are also fossils, hand lenses and some small fossils or minerals to be given to the children. In fact, everything you need to teach the Rocks and Soils section of the National Curriculum Year 3 Science.

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The Geologists' Association @geolassoc.bsky.social · Aug 1

There's still time to enter up to 3 photos on any geological topic into the GA 2025 Photo Competition. It's free to enter and you could win a cash prize of up to £150!

Closing date: 22 August

For full details visit our website: geologistsassociation.org.uk/photocomp_en...

The Geologists' Association @geolassoc.bsky.social · Aug 1

On the coast of County Antrim is the Giant's Causeway, a World Heritage Site for the importance of its geology. The remarkable basalt columns were formed about 60 million years ago as basalt lava cooled and contracted.

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The Geologists' Association @geolassoc.bsky.social · Aug 1

Welcome to August with a dramatic image from the Geologists' Association 2025 calendar of Columnar Basalt, Giant's Causeway, Northern Ireland taken by Graham Hickman, which won first prize in the GA 2024 Photographic Competition.

Columnar Basalt, Giant's Causeway, Northern Ireland. On the coast of County Antrim is the Giant's Causeway, a World Heritage Site for the importance of its geology. The remarkable basalt columns were formed about 60 million years ago as basalt lava cooled and contracted. Photo: Graham Hickman

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The Geologists' Association @geolassoc.bsky.social · Jul 29

In Volume 136, Issue 4 (August 2025) of Proceedings of the Geologists' Association.

Read the full article here (Open Access): www.sciencedirect.com/science/arti...

Reconstructed view to the west across Purbeck lagoon with land (and footwall hills) to north and lagoon deepening to the south. Carbonate mounds accumulated in a depth-restricted zone within the lagoon (corresponding to study area) adjacent to shoreline beaches, bars and lakes as represented by the Durlston Bay section to the north (modified from Sellwood and Wilson, 1990, hybodontiform fish after Stumpf et al., 2021).

Cover of the scientific journal Proceedings of the Geologists' Association (PGA).

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The Geologists' Association @geolassoc.bsky.social · Jul 29

Microbial mound origin for enigmatic sea-floor circular structures? Purbeck Limestone Group, offshore Dorset by Dan Bosenceᵃ, Jenny Collierᵇ, Arnaud Galloisᵃ, Ian Watkinsonᵃ, Chris Dunkerley, Simon Flecknerᵃ

ᵃ @royalholloway.bsky.social
ᵇ @eseimperial.bsky.social @imperialcollegeldn.bsky.social

Multibeam Echo Sounding (MBES) of sea floor (colour bathymetric scale) and digital elevation onshore (grey scale) images of study area. Circular structures (CSs) are numbered as per Table 1 and those dived and sampled coloured red. Prominent ledges mapped on this seafloor MBES image are marked with dashed coloured lines and define informal units A–D in the Purbeck Limestone Group. Note the circular structures are mainly restricted to the Durlston Formation and are not recognised to the west of structures 1 and 2, or to the east of structure 26. (After Boscence et al., 2018).

Lithostratigraphic divisions of Purbeck Limestone Group (after El-Shahat, 1977; Westhead and Mather, 1996 and Ensom, 2010) with those members in bold as mapped as prominent ledges on the sea floor.

A. View towards east of CS 13 illustrating exhumed, dome-shaped, circular structure truncated by fault on north-west margin. Sample locations illustrated with red dots. Scale from 100 m spaced grid (depth scale in m). B. View towards northeast of CSs 21a and 22 in southeasterly dipping strata cut by N trending faults. Single sampled location (red dot) in eroded out core of dome-shaped structure CS 22 (depth scale in m and 200 m spaced grid).

A–F. Greyscale images of selected circular structures to show location of sampling sites (location of circular structures shown in Fig. 3). Within each star samples were taken at the shot point (explained in text below) or on oriented lines radially out from shot point as detailed in Table 1. Arrows in A–C indicate apparent onlap onto crest of circular structures.

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The Geologists' Association @geolassoc.bsky.social · Jul 22

In volume 136, Issue 4 (August 2025) of Proceedings of the Geologists' Association (PGA)

Read the full article online (open access): www.sciencedirect.com/science/arti...

The cover image of the scientific journal Proceedings of the Geologists' Association.