The Sherwood Sandstone Group is a Triassic lithostratigraphic group (a sequence of rock strata) which is widespread in Britain, especially in the English...

Mudstone Group Tarporley Siltstone Formation (siltstones, mudstones and sandstones) including Retford Member (mudstones) Sherwood Sandstone Group Chester...

offshore equivalent of the Roxby Formation and Sherwood Sandstone Group which occur in northeast England. The group comprises a lower Bunter Shale Formation...

that underlie the Jurassic-Triassic age Penarth Group. The name distinguishes it from the Old Red Sandstone which is largely Devonian in age, and with which...

The Bromsgrove Sandstone is a geologic formation of the Sherwood Sandstone Group in England. It preserves fossils and ichnofossils of Chirotherium barthii...

stratigraphic units: the Sherwood Sandstone Group (arenaceous siliciclastic) (equivalent to the Bunter and lower Keuper) the Mercia Mudstone Group (argillaceous...

the Tarporley Siltstone Formation (Mercia Mudstone Group) and possibly the Sherwood Sandstone Group of the United Kingdom. Cladogram based on Ezcurra et...

S. (1997). "Clastic sabkhas and diachroneity at the top of the Sherwood Sandstone Group: East Irish Sea Basin". Geological Society of London, Special Publications...

part of the Sherwood Sandstone Group. Overlying these rocks in the Rugeley area are the, often pebbly, sandstones of the Helsby Sandstone Formation, formerly...

Triassic sandstones and mudstones, but it also incorporates economically important halite beds. The sequences referred to the Sherwood Sandstone Group and...

Castle Sandstone overlying a layer of Lenton Sandstone. Both layers are members of the Sherwood Sandstone Group. The Nottingham Castle Sandstone is a medium-...

top): Mercia Mudstone Group Sidmouth Mudstone Formation Tarporley Siltstone Formation Sherwood Sandstone Group Helsby Sandstone Formation (divided into...

Mercia Mudstone Group. The underlying Keuper Sandstone is now the Helsby Sandstone Formation at the top of the Sherwood Sandstone Group. Traditionally...

Group strata is thus (uppermost, youngest at top): Mercia Mudstone Group Sherwood Sandstone Group Helsby Sandstone Formation (=Bromsgrove Sandstone Formation)...

the east and south of the Lake District. Red Triassic sandstones of the Sherwood Sandstone Group were widely quarried, with the largest quarries near St...

Bromsgrove Sandstone Formation, completing the Sherwood Sandstone Group (SSG) sequence in this basin. The overlying Mercia Mudstone Group (MMG) has the...

the Helsby Sandstone Formation are assigned to the Sherwood Sandstone Group. It is this formation whose relatively hard-wearing sandstones form the higher...

is the lateral equivalent of the combined Mercia Mudstone and Sherwood Sandstone Groups in the Irish Sea and onshore Britain. It contains the Otter Bank...

The Otter Sandstone Formation is an obsolete geological unit in England, now referred to as the Helsby Sandstone Formation. It preserves fossils dated...

the Sherwood Sandstone Group is of Permian age. The two groups as currently defined replace earlier terminology which referred to the Bunter Sandstone, Keuper...

the Triassic sandstones and conglomerates of the Chester Formation, formerly the Hawksmoor Formation within the Sherwood Sandstone Group. No rocks of...

Beacon Lodge Sandstones and Engine Vein Conglomerates. These latter members make up the Helsby Sandstone Formation of the Sherwood Sandstone Group. In the...

Sandstones of the Sherwood Sandstone Group are overlain by claystones and siltstones of the Mercia Mudstone Group and limestones of the Penarth Group...

from a sandstone outcrop of the Sherwood Sandstone Group, dating from the Early Triassic period around 250 million years ago. The sandstones are exposed...

overlies Magnesian Limestone strata and rocks assigned to the Sherwood Sandstone Group. The impacts of human habitation, particularly the inadequate treatment...

certain areas. The Sherwood sandstone group is the predominant rock that occurs, and comprises up to 205m of conglomerates and sandstone with scattered siltstone...

overlain unconformably by sandstones of the Sherwood Sandstone Group in the Newent Coalfield, by mudstones of the Mercia Mudstone Group in the Oxfordshire Coalfield...

The bedrock of the area is rock from the Sherwood sandstone group. There are a few outcrops of sandstone but elsewhere the bedrock is covered by drift...

Kingdom. The church is built of New Red Sandstone, which is abundant locally. Pevsner describes it as "local sandstone ashlar of a sombre brown hue which has...

Bunter sandstone (of the Sherwood Sandstone Group type), overlaid on top of Keuper marls (of the Mercia Mudstone Group). Nottinghamshire's sandstone ridges...