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Great Scar Limestone
The Great Scar Limestone Group is a lithostratigraphy, lithostratigraphical group (stratigraphy), term referring to a succession of generally fossiliferous rock stratum, strata which occur in the Pennines in northern England and in the Isle of Man within the Tournaisian and Visean stage (stratigraphy), stages of the Carboniferous period (geology), Period. It is contained within the Carboniferous Limestone, Carboniferous Limestone Supergroup. Basinal successions Stainmore Trough The sequence in the Stainmore Trough is thus (youngest at top): * Ashfell Sandstone (Arundian age) * Breakyneck Scar Limestone (Arundian age) * Red Hill Formation * Brownber Formation (Chadian age) * Scandal Beck Limestone (Chadian age) * Coldbeck Limestone (Chadian age) On the Alston Block corresponding to the North Pennines, the sequence contains the Melmerby Scar Limestone Formation. Orton area In the Orton, Eden, Orton area, the sequence is: * Knipe Scar Limestone * Potts Beck Limestone * Ashfe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Group (stratigraphy)
In geology, a group is a lithostratigraphic unit consisting of a series of related formations that have been classified together to form a group. Formations are the fundamental unit of stratigraphy. Groups may sometimes be combined into supergroups. Groups are useful for showing relationships between formations, and they are also useful for small-scale mapping or for studying the stratigraphy of large regions. Geologists exploring a new area have sometimes defined groups when they believe the strata within the groups can be divided into formations during subsequent investigations of the area. It is possible for only some of the strata making up a group to be divided into formations. An example of a group is the Glen Canyon Group, which includes (in ascending order) the Wingate Sandstone, the Moenave Formation, the Kayenta Formation, and the Navajo Sandstone. Each of the formations can be distinguished from its neighbor by its lithology, but all were deposited in the same vast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
