Ballard Down
Encyclopedia
Ballard Down is an area of chalk
downland
in Dorset
, southern England
.
The down forms a headland
, Ballard Point, between Studland
and Swanage
bays in the English Channel
, and once formed part of a continuous chalk ridge between what are now west Dorset
and the Isle of Wight
, part of the Southern England Chalk Formation
. The scarp
slope of the down faces south, over Swanage, meeting the sea as Ballard Cliff
.
The down was an area of calcareous grassland
for up to 1000 years until World War II
, when there was a sudden rise in the need for arable
agricultural
land. Since then the need for agricultural land has declined and the down, now owned by the National Trust
, has largely been returned to grassland. The National Trust allows grazing
on the down to prevent it becoming a natural oak
woodland
climax community
.
The obelisk
at Ballard Down commemorates the provision of a new supply of drinking water
for Swanage in 1883. It was taken down in 1941 as it was a landmark that might have aided enemy aircraft during World War II
, but was re-erected in 1952.
The Purbeck Hills
meet the sea at Old Harry Rocks
, Ballard Down.
stretches for 153 kilometres (95 mi), from Orcombe Point
near Exmouth
, in the west, to Old Harry Rocks
on the Isle of Purbeck
, in the east
. The coastal exposures along the coastline comprise a continuous sequence of Triassic
, Jurassic
and Cretaceous
rock formations spanning about 185 million years. The Jurassic Coast includes a large range of important fossil
zones.
Chalk
Chalk is a soft, white, porous sedimentary rock, a form of limestone composed of the mineral calcite. Calcite is calcium carbonate or CaCO3. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite plates shed from micro-organisms called coccolithophores....
downland
Downland
A downland is an area of open chalk hills. This term is especially used to describe the chalk countryside in southern England. Areas of downland are often referred to as Downs....
in Dorset
Dorset
Dorset , is a county in South West England on the English Channel coast. The county town is Dorchester which is situated in the south. The Hampshire towns of Bournemouth and Christchurch joined the county with the reorganisation of local government in 1974...
, southern England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...
.
The down forms a headland
Headlands and bays
Headlands and bays are two related features of the coastal environment.- Geology and geography :Headlands and bays are often found on the same coastline. A bay is surrounded by land on three sides, whereas a headland is surrounded by water on three sides. Headlands are characterized by high,...
, Ballard Point, between Studland
Studland
Studland is a small village on the Isle of Purbeck in the English county of Dorset. It is famous for its beaches and nature reserve. In 2001 Studland had a population of 480, the lowest in 50 years...
and Swanage
Swanage
Swanage is a coastal town and civil parish in the south east of Dorset, England. It is situated at the eastern end of the Isle of Purbeck, approximately 10 km south of Poole and 40 km east of Dorchester. The parish has a population of 10,124 . Nearby are Ballard Down and Old Harry Rocks,...
bays in the English Channel
English Channel
The English Channel , often referred to simply as the Channel, is an arm of the Atlantic Ocean that separates southern England from northern France, and joins the North Sea to the Atlantic. It is about long and varies in width from at its widest to in the Strait of Dover...
, and once formed part of a continuous chalk ridge between what are now west Dorset
Dorset
Dorset , is a county in South West England on the English Channel coast. The county town is Dorchester which is situated in the south. The Hampshire towns of Bournemouth and Christchurch joined the county with the reorganisation of local government in 1974...
and the Isle of Wight
Isle of Wight
The Isle of Wight is a county and the largest island of England, located in the English Channel, on average about 2–4 miles off the south coast of the county of Hampshire, separated from the mainland by a strait called the Solent...
, part of the Southern England Chalk Formation
Southern England Chalk Formation
The Chalk Formation of Southern England is a system of chalk downland in the south of England. The formation is perhaps best known for Salisbury Plain, the location of Stonehenge, the Isle of Wight and the twin ridgeways of the North Downs and South Downs....
. The scarp
Escarpment
An escarpment is a steep slope or long cliff that occurs from erosion or faulting and separates two relatively level areas of differing elevations.-Description and variants:...
slope of the down faces south, over Swanage, meeting the sea as Ballard Cliff
Ballard Cliff
Ballard Cliff is part of the Jurassic Coast near Swanage in the Isle of Purbeck in Dorset, England.The steeply dipping Cretaceous chalk that marks the northern end of Swanage Bay takes over from the Wealden beds at this location. A series of landslides during the late 1990s and early 2000s created...
.
The down was an area of calcareous grassland
Calcareous grassland
Calcareous grassland is an ecosystem associated with thin basic soil, such as that on chalk and limestone downland. Plants on calcareous grassland are typically short and hardy, and include grasses and herbs such as clover...
for up to 1000 years until World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
, when there was a sudden rise in the need for arable
Arable land
In geography and agriculture, arable land is land that can be used for growing crops. It includes all land under temporary crops , temporary meadows for mowing or pasture, land under market and kitchen gardens and land temporarily fallow...
agricultural
Agriculture
Agriculture is the cultivation of animals, plants, fungi and other life forms for food, fiber, and other products used to sustain life. Agriculture was the key implement in the rise of sedentary human civilization, whereby farming of domesticated species created food surpluses that nurtured the...
land. Since then the need for agricultural land has declined and the down, now owned by the National Trust
National Trust for Places of Historic Interest or Natural Beauty
The National Trust for Places of Historic Interest or Natural Beauty, usually known as the National Trust, is a conservation organisation in England, Wales and Northern Ireland...
, has largely been returned to grassland. The National Trust allows grazing
Grazing
Grazing generally describes a type of feeding, in which a herbivore feeds on plants , and also on other multicellular autotrophs...
on the down to prevent it becoming a natural oak
Oak
An oak is a tree or shrub in the genus Quercus , of which about 600 species exist. "Oak" may also appear in the names of species in related genera, notably Lithocarpus...
woodland
Woodland
Ecologically, a woodland is a low-density forest forming open habitats with plenty of sunlight and limited shade. Woodlands may support an understory of shrubs and herbaceous plants including grasses. Woodland may form a transition to shrubland under drier conditions or during early stages of...
climax community
Climax community
In ecology, a climax community, or climatic climax community, is a biological community of plants and animals which, through the process of ecological succession — the development of vegetation in an area over time — has reached a steady state. This equilibrium occurs because the climax community...
.
The obelisk
Obelisk
An obelisk is a tall, four-sided, narrow tapering monument which ends in a pyramid-like shape at the top, and is said to resemble a petrified ray of the sun-disk. A pair of obelisks usually stood in front of a pylon...
at Ballard Down commemorates the provision of a new supply of drinking water
Drinking water
Drinking water or potable water is water pure enough to be consumed or used with low risk of immediate or long term harm. In most developed countries, the water supplied to households, commerce and industry is all of drinking water standard, even though only a very small proportion is actually...
for Swanage in 1883. It was taken down in 1941 as it was a landmark that might have aided enemy aircraft during World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...
, but was re-erected in 1952.
The Purbeck Hills
Purbeck Hills
The Purbeck Hills and South Dorset Downs are a ridge of chalk downs in Dorset, England. The hills extend from the Dorset Downs west of Dorchester, where the River Frome begins to form a valley dividing them from the larger area of downland to the north. The ridge then runs east through the Isle...
meet the sea at Old Harry Rocks
Old Harry Rocks
The Old Harry Rocks are two chalk sea stacks located at Handfast Point, on the Isle of Purbeck in Dorset, southern England.- Location :Old Harry Rocks lie directly east of Studland, about 4 kilometres northeast of Swanage, and about 10 kilometres south of the large towns of Poole and...
, Ballard Down.
See also
The Jurassic CoastJurassic Coast
The Jurassic Coast is a World Heritage Site on the English Channel coast of southern England. The site stretches from Orcombe Point near Exmouth in East Devon to Old Harry Rocks near Swanage in East Dorset, a distance of ....
stretches for 153 kilometres (95 mi), from Orcombe Point
Orcombe Point
Orcombe Point is a coastal feature near Exmouth, Devon, on the south coast of England. It lies about south of the city of Exeter, southeast of Exmouth town centre and about southwest of Sidmouth....
near Exmouth
Exmouth, Devon
Exmouth is a port town, civil parish and seaside resort in East Devon, England, sited on the east bank of the mouth of the River Exe. In 2001, it had a population of 32,972.-History:...
, in the west, to Old Harry Rocks
Old Harry Rocks
The Old Harry Rocks are two chalk sea stacks located at Handfast Point, on the Isle of Purbeck in Dorset, southern England.- Location :Old Harry Rocks lie directly east of Studland, about 4 kilometres northeast of Swanage, and about 10 kilometres south of the large towns of Poole and...
on the Isle of Purbeck
Isle of Purbeck
The Isle of Purbeck, not a true island but a peninsula, is in the county of Dorset, England. It is bordered by the English Channel to the south and east, where steep cliffs fall to the sea; and by the marshy lands of the River Frome and Poole Harbour to the north. Its western boundary is less well...
, in the east
. The coastal exposures along the coastline comprise a continuous sequence of Triassic
Triassic
The Triassic is a geologic period and system that extends from about 250 to 200 Mya . As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events...
, Jurassic
Jurassic
The Jurassic is a geologic period and system that extends from about Mya to Mya, that is, from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes the middle period of the Mesozoic era, also known as the age of reptiles. The start of the period is marked by...
and Cretaceous
Cretaceous
The Cretaceous , derived from the Latin "creta" , usually abbreviated K for its German translation Kreide , is a geologic period and system from circa to million years ago. In the geologic timescale, the Cretaceous follows the Jurassic period and is followed by the Paleogene period of the...
rock formations spanning about 185 million years. The Jurassic Coast includes a large range of important fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
zones.