Portland stone - Wikipedia
Portland stone is a limestone geological formation (formally named the Portland Stone Formation [1]) dating to the Tithonian age of the Late Jurassic that is quarried on the Isle of Portland in Dorset, England. [1]
Portland stone: how a creamy British limestone became a symbol …
Jul 30, 2021 · Portland stone is a creamy-white limestone quarried from the Isle of Portland on the Dorset coast. Though this Jurassic-aged rock started life as a seafloor sediment it now adorns the...
Isle of Portland - Wikipedia
Portland is a central part of the Jurassic Coast, a World Heritage Site on the Dorset and east Devon coast, important for its geology and landforms. Portland stone, a limestone famous for its use in British and world architecture, including St Paul's Cathedral and the United Nations Headquarters, continues to be quarried here.
Geology of the Isle of Portland, Dorset by Ian West
The Portland Stone consists of the Portland Cherty Series overlain by the Portland Freestone, mostly oolitic limestone. The Purbeck sequence follows. In the southermost part of the Isle of Portland there is a raised beach (or beaches) of Pleistocene age.
Portland Stone: A Brief History - Ian Knapper
Oct 29, 2013 · Portland Stone (quarried on the Isle of Portland, Dorset) is a type of limestone which formed slowly over the last 150 million years or so as tiny grains of sediment grew and compacted. It is very similar to Bath Stone, but has a subtly unique texture, grain and colour.
Portland Stone - Dorset - DORSET BUILDING STONE
Dorset Central: Portland & Ringstead Bay to Lulworth Cove. Here the limestones are mainly shelly cross-bedded oolitic limestones, extensively quarried on the Isle of Portland and exported to London since 1650.
Portland Stone: Geological, Historical, and Modern Architectural …
Dec 7, 2024 · The Isle of Portland in the English Channel is the primary source of this limestone. The island’s geological structure features layers with Portland Stone beneath the Purbeck Beds and above the Kimmeridge Clay. This stratification affects the stone’s accessibility and quality.
Isle of Portland - Wikishire
The Isle of Portland is a limestone tied island on the Dorset coast. It is 4 miles long by a mile and a half wide, projecting into the the English Channel and joined to mainland Great Britain by a narrow strip of land which extends 18 miles parallel to the coast as Chesil Beach and by a short causeway to Wyke Regis over which runs the A354 road.
History - Portland Town Council
The Isle of Portland has dramatic scenery, spectacular views and a remarkable history that is reflected in the landscape and man's influence upon it. Portland has been occupied since...
Britain's Most Treasured Natural Resource | Chelsea Barracks
The Isle of Portland proffers no ordinary stone but one of Britain’s most treasured natural resources – known for both its easily recognisable and varied features, and for its contribution to the character of the nation’s capital city.