Gravel Bay - Moor Cliffs Formation with calcretes…
Gravel Bay - Moor Cliffs Formation with calcretes…
Gravel Bay - calcrete horizon in Moor Cliffs Forma…
Syncline in Lower Coal Measures sandstones: Swallo…
Swallowtree Bay anticline-syncline couplet: detail…
Swallowtree Bay anticline-syncline couplet: detail…
Spurn Neck sand ripples 1
Spurn Neck sand ripples 2
Spurn Neck view south
Spurn east beach bank, swales and ripples 1
Spurn east beach bank, swales and ripples 2
Gravel Bay - Moor Cliffs Formation 2
Gravel Bay - Moor Cliffs Formation 1
Conglomerate at Gravel Bay: close-up view 2
Conglomerate at Gravel Bay: close-up view 1
Conglomerates at Gravel Bay
The Settlands sand trees 3
The Settlands sand trees 2
The Settlands sand trees 1
Fox Hole Anticline - northern limb
Little Haven - Fox Hole Anticline
Nolton Haven seaward view
Nolton Haven channel lag deposit in beach boulder…
Nolton Haven channel lag deposit in beach boulder…
Nolton Haven channel sandstones 3
Nolton Haven channel sandstones 2
Nolton Haven channel sandstones
Nolton Haven sandstone channel scours
Nolton Haven ironstone pebbles in channel lag depo…
Nolton Haven ironstone pebbles in channel lag depo…
Nolton Haven sandstone channel edge lag deposits 2
Nolton Haven sandstone channel edge lag deposits 1
Nolton Haven sandstone channel edge 2
1/320 • f/6.3 • 85.0 mm • ISO 100 •
Canon EOS 600D
EF-S15-85mm f/3.5-5.6 IS USM
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Gravel Bay - millipede-like burrows in Moor Cliffs Formation sandstone
Freshwater West, Gravel Bay and East Pickard Bay
Moor Cliffs Formation in Gravel Bay.
This photo shows a close-up view of the light purple sandstone bed with greenish laminae seen in the previous photo. The darker perpendicular features in the sandstone are trace-fossil Beaconites burrows. Having previously been tentatively ascribed to worm burrows or lung-fish burrows, they are now thought to have been made by primitive millipede-like animals.
The bed is approx. 50 cm thick (top to bottom) in this photo.
Background:
The Moor Cliffs Formation overlies the Freshwater East conglomerates, seen in previous photos, and spans the boundary between the Silurian and Devonian periods. It consists of red mudstones and siltstones with occasional thin sandstone beds. These were deposited on a low-reflief floodplain at the edge of an arid continental margin, the sandstones being deposited by seasonal braided streams, the muds and silts deposited in ephemeral marginal lakes. When not inundated, the muds and silts developed carbonate-rich calcrete (caliche) soil horizons along dessication cracks, burrows and early plant root systems.
Moor Cliffs Formation in Gravel Bay.
This photo shows a close-up view of the light purple sandstone bed with greenish laminae seen in the previous photo. The darker perpendicular features in the sandstone are trace-fossil Beaconites burrows. Having previously been tentatively ascribed to worm burrows or lung-fish burrows, they are now thought to have been made by primitive millipede-like animals.
The bed is approx. 50 cm thick (top to bottom) in this photo.
Background:
The Moor Cliffs Formation overlies the Freshwater East conglomerates, seen in previous photos, and spans the boundary between the Silurian and Devonian periods. It consists of red mudstones and siltstones with occasional thin sandstone beds. These were deposited on a low-reflief floodplain at the edge of an arid continental margin, the sandstones being deposited by seasonal braided streams, the muds and silts deposited in ephemeral marginal lakes. When not inundated, the muds and silts developed carbonate-rich calcrete (caliche) soil horizons along dessication cracks, burrows and early plant root systems.
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Earthwatcher club has replied to Amelia clubThe Old Red Sandstone coast in Pembrokeshire has some beautiful colours. Lots of reddish browns, as you might expect, but also whites and greens as you have commented.
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