Gravel Bay - Moor Cliffs Formation 2
Gravel Bay - millipede-like burrows in Moor Cliffs…
Gravel Bay - Moor Cliffs Formation with calcretes…
Gravel Bay - Moor Cliffs Formation with calcretes…
Fenney Lane hollow way 1
Fenney Lane hollow way 2
The Wall Street of Bern.
rock'n stones 774
Zion National Park - 1986
Zion NP - Sandstone Wonders - 1986
Checkerboard Mesa - 1986
Iom[2]PC / rmf - weathering
Baltzer Lookout view
Grose Valley from Baltzer Lookout
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Hanging Rock (left) and Baltzer Lookout
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Roche Percee path
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ScI[23] - Harbour Barometer {1 of 2}
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HWW Petra Jordan 2nd April 1994
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Rock’n Stones 664
Rock Formations, Skokholm
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Fox Hole Anticline - northern limb jointing with c…
Fox Hole Anticline - northern limb 3
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Fox Hole Anticline - northern limb
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The Settlands at Little Haven from coastal path
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1/125 • f/6.3 • 15.0 mm • ISO 100 •
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Gravel Bay - Moor Cliffs Formation 1
Freshwater West, Gravel Bay and East Pickard Bay
Moor Cliffs Formation in Gravel Bay.
This photo shows the wave cut platform in the Moor Cliffs Formation at the western end of Gravel Bay. A light purple sandstone bed is seen in the centre of the photo with red mudstones below (left) and above (right). The white mottling towards the right is a particularly well-developed calcrete horizon. The sequence is dipping to the north (right) at approx. 60°.
The walking stick is about 0.9 m long.
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 the wave cut platform in the Moor Cliffs Formation at the western end of Gravel Bay. A light purple sandstone bed is seen in the centre of the photo with red mudstones below (left) and above (right). The white mottling towards the right is a particularly well-developed calcrete horizon. The sequence is dipping to the north (right) at approx. 60°.
The walking stick is about 0.9 m long.
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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