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Swithland Formation
The Swithland Formation is a Formation (geology), geologic formation in Leicestershire, and lies within the wider Swithland Wood and The Brand area. It preserves ichnotaxon dating back to the Cambrian Period (geology), period. Paleobiota The Swithland Formation preserves a lot of Cambrian ichnogenera, which are usually attributed to burrowing organisms like marine annelids. The most important one from this formation is Teichichnus, which was the first one found, and the one that proved this Brand Group was Cambrian in age, which also led to the discovery and research of a diorite unconformity between the Brand Group, Brand and Maplewell Groups. Ichnogenera See also * List of fossiliferous stratigraphic units in the United Kingdom References * {{cite web, title= Fossilworks: Gateway to the Paleobiology Database, author= ((Various Contributors to the Paleobiology Database)), url= https://www.fossilworks.org, access-date= 17 December 2021 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Formation (geology)
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by Abraham Gottlob ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
