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The geology of Barns Ness, Dunbar - Friday 10th April 2026 - 14:00-16:00
Ancient Seas & Fossil Reefs: A Geology Tour of Barns Ness with @ScottishGeologist
Join @ScottishGeologist for a beautifully focused coastal geology tour at Barns Ness, one of the best places in Scotland to explore the Lower Limestone Formation and step into a tropical sea from 340 million years ago. This is a fossil-rich site where the story is all about life, sedimentation, and changing environments—perfectly exposed across wide, accessible rock platforms.
What to Expect
🪨 The Lower Limestone Formation
Walk across well-exposed layers of the Lower Limestone Formation (Carboniferous).
See alternating beds of limestone, shale, and sandstone, recording repeated shifts between marine and coastal environments.
Learn how these cycles reflect changing sea levels, with warm shallow seas advancing and retreating over time.
🦴 Fossils from a Tropical Sea
Discover an abundance of marine fossils, including:
Corals 🪸
Crinoid fragments (sea lilies)
Brachiopods and bivalves
Learn how these organisms lived in clear, shallow, warm waters, very different from Scotland today.
Understand how fossil assemblages help geologists reconstruct ancient ecosystems.
🌊 Limestone Beds & Fossil Horizons
Identify distinct fossil-rich limestone layers, often packed with broken shells and skeletal debris.
See how quieter periods allowed fine muds to settle, forming shales between limestone beds.
Learn to recognise bedding planes and fossil concentrations that mark key environmental changes.
🏝️ Changing Environments Through Time
Reconstruct the Carboniferous landscape:
Tropical seas → lagoons → coastal plains → back to marine conditionsUnderstand how these repeating conditions created the layered geology seen today.
Link these cycles to global sea-level change and tectonic activity.
🌊 Coastal Exposure & Modern Processes
Walk across expansive wave-cut platforms, where the sea has revealed continuous rock layers.
See how erosion naturally “cuts” through the geology, exposing fossils and bedding structures.
Observe how modern coastal processes continue to shape and reveal the site.
👣 Hands-On Fossil & Rock Exploration
Learn how to spot fossils in the field and identify key fossil groups.
Practice reading sedimentary layers and environmental changes.
Try simple field sketches to capture fossil beds and rock sequences.
Who Should Attend?
Perfect for fossil lovers, families, students, and beginners, geology enthusiasts
Ideal if you want a clear, accessible introduction to sedimentary geology
Great for anyone interested in ancient life and past environments
Event Details
📍 Location: Barns Ness, near Dunbar, East Lothian
🗓️ Date: Friday 10th April 2026 14:00- 16:00
⏰ Duration: 2–3 hours
🎟️ Price: £25pp meet us there, £45 pick up from Glasgow
🥾 Terrain: Flat coastal rock platforms (best at low tide), rock scrambling, beach paths, tidal terrain
Why Join This Tour?
Led by @ScottishGeologist, this tour strips geology back to one of its most fascinating themes—life in deep time. Barns Ness is a place where you can stand on an ancient seabed, see the fossils of the creatures that lived there, and understand how environments changed over millions of years.
Ancient Seas & Fossil Reefs: A Geology Tour of Barns Ness with @ScottishGeologist
Join @ScottishGeologist for a beautifully focused coastal geology tour at Barns Ness, one of the best places in Scotland to explore the Lower Limestone Formation and step into a tropical sea from 340 million years ago. This is a fossil-rich site where the story is all about life, sedimentation, and changing environments—perfectly exposed across wide, accessible rock platforms.
What to Expect
🪨 The Lower Limestone Formation
Walk across well-exposed layers of the Lower Limestone Formation (Carboniferous).
See alternating beds of limestone, shale, and sandstone, recording repeated shifts between marine and coastal environments.
Learn how these cycles reflect changing sea levels, with warm shallow seas advancing and retreating over time.
🦴 Fossils from a Tropical Sea
Discover an abundance of marine fossils, including:
Corals 🪸
Crinoid fragments (sea lilies)
Brachiopods and bivalves
Learn how these organisms lived in clear, shallow, warm waters, very different from Scotland today.
Understand how fossil assemblages help geologists reconstruct ancient ecosystems.
🌊 Limestone Beds & Fossil Horizons
Identify distinct fossil-rich limestone layers, often packed with broken shells and skeletal debris.
See how quieter periods allowed fine muds to settle, forming shales between limestone beds.
Learn to recognise bedding planes and fossil concentrations that mark key environmental changes.
🏝️ Changing Environments Through Time
Reconstruct the Carboniferous landscape:
Tropical seas → lagoons → coastal plains → back to marine conditionsUnderstand how these repeating conditions created the layered geology seen today.
Link these cycles to global sea-level change and tectonic activity.
🌊 Coastal Exposure & Modern Processes
Walk across expansive wave-cut platforms, where the sea has revealed continuous rock layers.
See how erosion naturally “cuts” through the geology, exposing fossils and bedding structures.
Observe how modern coastal processes continue to shape and reveal the site.
👣 Hands-On Fossil & Rock Exploration
Learn how to spot fossils in the field and identify key fossil groups.
Practice reading sedimentary layers and environmental changes.
Try simple field sketches to capture fossil beds and rock sequences.
Who Should Attend?
Perfect for fossil lovers, families, students, and beginners, geology enthusiasts
Ideal if you want a clear, accessible introduction to sedimentary geology
Great for anyone interested in ancient life and past environments
Event Details
📍 Location: Barns Ness, near Dunbar, East Lothian
🗓️ Date: Friday 10th April 2026 14:00- 16:00
⏰ Duration: 2–3 hours
🎟️ Price: £25pp meet us there, £45 pick up from Glasgow
🥾 Terrain: Flat coastal rock platforms (best at low tide), rock scrambling, beach paths, tidal terrain
Why Join This Tour?
Led by @ScottishGeologist, this tour strips geology back to one of its most fascinating themes—life in deep time. Barns Ness is a place where you can stand on an ancient seabed, see the fossils of the creatures that lived there, and understand how environments changed over millions of years.