| Site of Special Scientific Interest | |
  Location within Somerset | |
| Area of Search | Somerset |
|---|---|
| Grid reference | ST400144 |
| Coordinates | 50°55′33″N2°51′18″W / 50.92592°N 2.85507°W Coordinates: 50°55′33″N2°51′18″W / 50.92592°N 2.85507°W |
| Interest | Geological |
| Area | 0.3 hectares (0.0030 km2; 0.0012 sq mi) |
| Notification | 1971 |
| Natural England website | |
Seavington St. Mary (grid reference ST400144 ) is a 0.3 hectare geological Site of Special Scientific Interest near the village of Seavington St Mary in Somerset, notified in 1971.
The Ordnance Survey National Grid reference system is a system of geographic grid references used in Great Britain, distinct from latitude and longitude. It is often called British National Grid (BNG).
The hectare is an SI accepted metric system unit of area equal to a square with 100-metre sides, or 10,000 m2, and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about 0.405 hectare and one hectare contains about 2.47 acres.
Seavington St Mary is a village and civil parish in Somerset, England. It is situated next to the village of Seavington St Michael, about 3 miles (4.8 km) east of Ilminster, within the South Somerset district and had a population of 384 inhabitants at the 2011 census.
Extensive exposures through much of the Inferior Oolite. This is the most westerly outcrop of this formation in England. It is thus of considerable importance in interpreting the local stratigraphy and sedimentology in relation to the palaeogeography of south-west England in Middle Jurassic times. A valuable Aalenian - Bajocian locality affording a prime educational and research facility.
The Inferior Oolite is a sequence of Jurassic age sedimentary rocks in Europe. It was deposited during the Middle Jurassic. The Inferior Oolite Group as more recently defined is a Jurassic lithostratigraphic group in southern and eastern England. It has been variously known in the past as the Under Oolite, the Inferior Oolite, the Inferior Oolite Series and the Redbourne Group.
Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification). It is primarily used in the study of sedimentary and layered volcanic rocks. Stratigraphy has two related subfields: lithostratigraphy and biostratigraphy.
Sedimentology encompasses the study of modern sediments such as sand, silt, and clay, and the processes that result in their formation, transport, deposition and diagenesis. Sedimentologists apply their understanding of modern processes to interpret geologic history through observations of sedimentary rocks and sedimentary structures.
