User:Huligan0/Orcombe Point

The "geoneedle" is made from different rocks along the Jurassic Coast and marks its western end at Orcombe Point near Exmouth, Devon.

Orcombe Point is a coastal feature near Exmouth, Devon, on the south coast of England.

Location

Orcombe Point lies about sixteen kilometres south of the city of Exeter, three kilometres southeast of Exmouth town centre and about 12 kilometres southwest of Sidmouth.

Directly to the west lies Exmouth Beach and to the east is Sandy Beach, a holiday beach, that can be reached either along the coastal path or through the large caravan park. The two beaches are part of a long strip of sand and are connected to each other below Orcombe Point at low tide.

Jurassic Coast

The Jurassic Coast is a World Heritage Site on the English Channel coast of southern England. The Jurassic Coast stretches over a distance of 153 kilometres (95 mi), from Orcombe Point to Old Harry Rocks on the Isle of Purbeck in the east .

The rocks dip gently to the east. Due to this tilting and erosion the oldest exposed rocks are found here in the west, with progressively younger rocks forming the cliffs further east. The coastal exposures along the coastline provide a continuous sequence of Triassic, Jurassic and Cretaceous rock formations spanning approximately 185 million years of the Earths history. The localities along the Jurassic Coast includes a large range of important fossil zones.

• See also: List of places on the Jurassic Coast

Orcombe Point is the western end of the Jurassic Coast and the South West Coast Path includes the entire length of the Site

Sited high upon the hill, which affords spectacular views, Orcombe Point is marked by the "Geoneedle", which was unveiled by His Royal Highness the Prince of Wales, in 2002, at the inauguration. The artist whose conceived and designed the "Geoneedle" sculpture was Michael Fairfax. He also conceived and designed the "Exeter Riddle" in Exeter.

Geology

The Geoneedle is constructed from a variety of different stones, representing both the major building stones to be found on the Jurassic Coast and the sequence of rocks that form this part of the coastline.

The ascent to Orcombe Point shows the successive layers of different sedimentary rocks, which were deposited under varying geological conditions. At the base are cross-bedded sandstones. Towards the top, the rock types are those deposited by quieter, slower-flowing waters (i.e. siltstones and mudstones). The sediments are markedly red and this indicates that they were formed in a desert. These formations belong to the "Aylesbeare Mudstone Group" and date from the Triassic period 250 million years ago.