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Hutton's Rock
by Anne Burgess
geograph for square NT2772
Hutton's Rock is the stack of rock standing to right of centre. It is not... (more)
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Site of a great geological discovery
by Richard Sutcliffe
geograph for square NS5373
This ordinary-looking, rather overgrown burn is the site of a great geological... (more)
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Geological Boundary
by Ashley Dace
geograph for square NM3998
The site of the inner ring fault. Dyke feature also prominent.
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Isle of Rum - Geology
by Ashley Dace
geograph for square NM3998
A small dyke can be seen cutting the gritty sandstone. Behind a larger basaltic... (more)
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Course of a geological dyke
by Lairich Rig
geograph for square NS3678
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Course of a geological dyke
by Lairich Rig
geograph for square NS3678
To the right of a line receding directly from the photographer's location,... (more)
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Magma Mixing
by Anne Burgess
for square NM3997
The different types of rock in this outcrop are the result of magma mixing.... (more)
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Northern Marginal Zone
by Ashley Dace
for square NM3997
A view across the NMZ. On the opposite side of the valley is an outcrop of... (more)
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Corrie Dubh Breccia
by Ashley Dace
for square NM3997
The caldera breccia formed from the collapse of the sides. Composition differs... (more)
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Porphyritic rhyolite plug
by Ashley Dace
for square NM3997
This is an intrusive plug with included mafic magma showing mixing. The mafic... (more)
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Porphyritic rhyolite
by Ashley Dace
for square NM3997
Phenocrysts of plagioclase in the extrusive rhyolite. This filled the caldera.
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Cross Laminae
by Ashley Dace
for square NM3997
Current cross laminations in the coarse gritty sandstone of the Torridonian group.
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Dolerite Plug
by Ashley Dace
for square NM3999
A dolerite plug is evident by the crags but there is also more covered over. One... (more)
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Inner Ring Fault
by Ashley Dace
geograph for square NM3998
The lithology change lines up with the cliff in the distance suggesting we are... (more)
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Spotted Rock
by Ashley Dace
for square NM3998
Slight thermal metamorphism has possibly caused the spotting in this siltstone.... (more)
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Silt and Sand
by Ashley Dace
for square NM3999
Not an amazing photo but it shows a small band of silt stone in between coarse... (more)
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Ancient Ripple Marks
by Ashley Dace
for square NM3999
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Ancient Ripple Marks
by Ashley Dace
for square NM3999
Ripples in the Torridonian strata.
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Splitting Dyke
by Ashley Dace
for square NM3897
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Dyke Feature
by Ashley Dace
geograph for square NM3897
A dyke runs along through Rhyolite (I think, can't quite remember)
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Eastern Layered Intrusion
by Ashley Dace
geograph for square NM3897
A view of the ELI
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Meall Breac
by Ashley Dace
geograph for square NM3897
A ridge composed of extrusive breccha overlain by porphyritic rhyolite with... (more)
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Small Dyke
by Ashley Dace
for square NM3998
A small dyke cutting through the gritty sandstone (of the Torridonian group). It... (more)
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Rock face and woodland near Dudley, West Midlands
by Roger D Kidd
geograph for square SO9392
Looking north towards Mons Hill and Coseley.
The Wenlock Limestone exposures on... (more)
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Wren's Nest limestone ripple beds (detail), Dudley
by Roger D Kidd
for square SO9391
Looking north-east from the ripple beds observation platform on the west side of... (more)
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Wren's Nest ripple beds (detail), Dudley
by Roger D Kidd
for square SO9391
Looking north-east from the ripple beds observation platform on the west side of... (more)
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Limestone ripple beds on Wren's Nest Hill, Dudley
by Roger D Kidd
geograph for square SO9391
Looking north-east from the ripple beds observation platform on the west side of... (more)
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Pit on geological dyke
by Lairich Rig
geograph for square NS3678
The pit appears to have been the site of some small-scale quarrying. The dyke is... (more)
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Plaque on Daisy Rock
by Anne Burgess
for square NJ1570
This plaque is more interesting for what it doesn't say than for what it... (more)
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Basalt Dyke
by Ashley Dace
geograph for square NM3998
The dyke has been exposed. It runs down to Kinloch in a NS fashion. There is an... (more)
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Wren's Nest Hill near Dudley
by Roger D Kidd
geograph for square SO9392
This is on the west side of the hill, looking north-east.
The former quarry,... (more)
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Wren's Nest ripple beds (detail), Dudley
by Roger D Kidd
for square SO9391
Looking north-east from the ripple beds observation platform on the west side of... (more)
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Limestone exposure (detail) in Wren's Nest Nature Reserve, Dudley
by Roger D Kidd
for square SO9391
This is a detail of the famous Wenlock Limestone ripple beds exposure on the... (more)
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Wren's Nest ripple beds (detail), Dudley
by Roger D Kidd
for square SO9391
Looking north-east from the ripple beds observation platform on the west side of... (more)
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Limestone exposure in Wren's Nest Nature Reserve, Dudley
by Roger D Kidd
for square SO9391
This is on western side of Wren's Nest Hill in the nature reserve. The... (more)
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Old Red Sandstone and New Red Sandstone
by Anne Burgess
geograph for square NJ1763
The rubbly layers at the top of this face are New Red Sandstone, and the more... (more)
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Desert Dunes
by Anne Burgess
for square NJ1763
The sandstones in this rock face formed when what is now Scotland lay much... (more)
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Fossil Mud Curls
by Anne Burgess
for square NJ1570
The marks on the surface of this slab of Hopeman Sandstone look like chisel... (more)
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Cuttieshillock Quarry
by Anne Burgess
geograph for square NJ1863
This quarry is where some of the Elgin reptile fossils were found. The vegetated... (more)
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Brecciated Sandstone
by Anne Burgess
geograph for square NM3997
The foreground rocks here are a breccia containing angular fragments of... (more)
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Allt Slugan a' Choilich
by Ashley Dace
geograph for square NM3998
A view up at the climb to Corrie Dubh, the rocks here at Siltstones from the... (more)
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Cnapan Breaca
by Ashley Dace
geograph for square NM3997
The rocks in the foreground change from gabbro to gabbro breccian to porphyritic rhyolite.
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Northern Marginal Zone
by Ashley Dace
geograph for square NM3997
Standing on Cnapan Breaca; the hills in the distance are Torridonian in age.
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Dyke Feature
by Ashley Dace
geograph for square NM3998
A basaltic dyke has run NS, probably after the main caldera cycles had finished.
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Lot's Wife
by Lairich Rig
geograph for square NS4178
Category: Geological feature
This pinnacle is located in the lower reaches of Auchenreoch Glen. The... (more)
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Limestone slabs in Wren's Nest Nature Reserve near Dudley
by Roger D Kidd
geograph for square SO9391
Looking south-east along the ridge from the ripple beds (off to the left)... (more)
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Fossil Trackway
by Anne Burgess
for square NJ1670
A track left by a Permo-Triassic reptile that walked across the desert here... (more)
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Unnamed Beach
by Anne Burgess
geograph for square NJ1670
It used to be reasonably straightforward to get to this little beach using a... (more)
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Sandstone Promontory
by Anne Burgess
geograph for square NJ1670
The Hopeman Sandstone is of Permo-Triassic age, part of the New Red Sandstone,... (more)
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Fossil Trackway
by Anne Burgess
for square NJ1670
These are the casts of footprints made by a reptile walking across the face of a... (more)
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